Relevant bibliographies by topics / Ground filter

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Ground filter'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Ground filter"

1

Díaz Pardo, Iván Eduardo, Carlos Arturo Suárez Fajardo, and Gustavo Adolfo Puerto Leguizamón. "A study of the ground plane effect in passband filters using OSRR cells." DYNA 82, no. 193 (2015): 9–15. http://dx.doi.org/10.15446/dyna.v82n193.42550.

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This paper presents the study of the ground plane effect in passband filters using metamaterial cells in Open Split Ring Resonators (OSRR) structures on microstrip substrates. Three different configurations have been proposed, namely: by removing partially the ground plane of the OSRR cell back end, by windows design over the ground plane at the back end of each cell and by placing a full ground plane. The conducted analysis shows that the filter transmission response featuring a ground plane including windows proved to be the most flattened with the middle bandwidth of the three configurations. On the other hand, the performance of these filters is similar to a conventional filter based on three-pole microstrip technology but with a considerable reduction in size of about 60%.
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Kitamura, Toshiaki. "Comb-Line Filter with Coupling Capacitor in Ground Plane." Active and Passive Electronic Components 2011 (2011): 1–6. http://dx.doi.org/10.1155/2011/919240.

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A comb-line filter with a coupling capacitor in the ground plane is proposed. The filter consists of two quarter-wavelength microstrip resonators. A coupling capacitor is inserted into the ground plane in order to build strong coupling locally along the resonators. The filtering characteristics are investigated through numerical simulations as well as experiments. Filtering characteristics that have attenuation poles at both sides of the passband are obtained. The input susceptances of even and odd modes and coupling coefficients are discussed. The filters using stepped impedance resonators (SIRs) are also discussed, and the effects of the coupling capacitor for an SIR structure are shown.
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Justa, Josef, Václav Šmídl, and Aleš Hamáček. "Fast AHRS Filter for Accelerometer, Magnetometer, and Gyroscope Combination with Separated Sensor Corrections." Sensors 20, no. 14 (2020): 3824. http://dx.doi.org/10.3390/s20143824.

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A new predictor–corrector filter for attitude and heading reference systems (AHRS) using data from an orthogonal sensor combination of three accelerometers, three magnetometers and three gyroscopes is proposed. The filter uses the predictor—corrector structure, with prediction based on gyroscopes and independent correction steps for acceleration and magnetic field sensors. We propose two variants of the filter: (i) one using mathematical operations of special orthogonal group SO(3), that are accurate for nonlinear operations, for highest possible accuracy, and (ii) one using linearization of nonlinear operations for fast evaluation. Both approaches are quaternion-based filter realizations without redundant steps. The filters are compared to state of the art methods in this field on data recorded using low-cost microelectromechanical systems (MEMS) sensors with ground truth measured by the VICON optical system. Both filters achieved better accuracy than conventional methods at lower computational cost. The recorded data with ground truth reference and the source codes of both filters are publicly available.
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Nedelchev, M., and A. Kolev. "Synthesis of Planar Filters Using Defected Ground Structure Miniaturized Hairpin Resonators." Engineering, Technology & Applied Science Research 9, no. 1 (2019): 3734–38. http://dx.doi.org/10.48084/etasr.2424.

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This paper presents an effective technique to suppress the spurious passbands in planar filters by using defected ground structure (DGS) resonators etched in the ground plane. The proposed miniaturized hairpin DGS slot resonator is researched in terms of its resonance frequency, corresponding coupling topologies, and filter design. The resonator and the topologies of coupled DGS resonators are simulated in a fullwave electromagnetic (EM) simulator. Using a curve-fitting technique, useful design formulas are proposed for filter synthesis. Using the synthesis procedure, a 3rd order filter design is simulated, manufactured and measured. The insertion loss of -3dB in the passband of 280MHz is observed, while the suppression of the spurious passbands up to 12GHz is more than 24dB.
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Talybova, J. "Selection of Drainage and Evaluation Used Filter Media." Bulletin of Science and Practice 6, no. 3 (2020): 161–69. http://dx.doi.org/10.33619/2414-2948/52/16.

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The feature of running the suffosion of sand grounds in the top five-meter soil-ground layer where drainage is constructed on the basis of existing normative documents and granulo¬metric composition of filter material was determined with reports. The actual and report contents of the filter differ sharply. Large particles (40% by weight) of more than 20 mm should be sorted out from the sand-gravel ground to be used for construction of drainage.
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Štular, Benjamin, and Edisa Lozić. "Comparison of Filters for Archaeology-Specific Ground Extraction from Airborne LiDAR Point Clouds." Remote Sensing 12, no. 18 (2020): 3025. http://dx.doi.org/10.3390/rs12183025.

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Identifying bare-earth or ground returns within point cloud data is a crucially important process for archaeologists who use airborne LiDAR data, yet there has thus far been very little comparative assessment of the available archaeology-specific methods and their usefulness for archaeological applications. This article aims to provide an archaeology-specific comparison of filters for ground extraction from airborne LiDAR point clouds. The qualitative and quantitative comparison of the data from four archaeological sites from Austria, Slovenia, and Spain should also be relevant to other disciplines that use visualized airborne LiDAR data. We have compared nine filters implemented in free or low-cost off-the-shelf software, six of which are evaluated in this way for the first time. The results of the qualitative and quantitative comparison are not directly analogous, and no filter is outstanding compared to the others. However, the results are directly transferable to real-world problem-solving: Which filter works best for a given combination of data density, landscape type, and type of archaeological features? In general, progressive TIN (software: lasground_new) and a hybrid (software: Global Mapper) commercial filter are consistently among the best, followed by an open source slope-based one (software: Whitebox GAT). The ability of the free multiscale curvature classification filter (software: MCC-LIDAR) to remove vegetation is also commendable. Notably, our findings show that filters based on an older generation of algorithms consistently outperform newer filtering techniques. This is a reminder of the indirect path from publishing an algorithm to filter implementation in software.
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Smith, P. G., A. Gaber, I. Hattab, and H. A. Halim. "A Study into the Removal of Iron from Ferruginous Ground Water Using Limestone Bed Filtration." Water Science and Technology 27, no. 9 (1993): 23–28. http://dx.doi.org/10.2166/wst.1993.0174.

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A pilot plant consisting of limestone bed filtration and sand filtration has been built 15 km south of Cairo to serve about 400 people. The pilot plant consists of 3 limestone filter units operated in series and two sand filters. The limestone filters are 1.3 m × 1.3 m and have a media depth of 1.15 m, a liquid depth of 0.5 m plus 0.35 m free board. The pilot plant started operation in April 1991 and the initial operation of the pilot plant has shown that a packed limestone filter unit is a simple and cheap method of removing iron from ferruginous groundwater. The initial results have shown that when an inlet water of about 5 mg/l of iron is treated by one limestone filter and one sand filter at a flow rate of 0.9 m3/h, the treated water had an average iron concentration of 0.2 mg/l.
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Canjar, R. Michael. "Small filter forcing." Journal of Symbolic Logic 51, no. 3 (1986): 526–46. http://dx.doi.org/10.2307/2274011.

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Qλ is the set of nonprincipal filters on ω which are generated by fewer than λ sets, for λ a fixed uncountable, regular cardinal ≤ c. We analyze forcing with Qλ, where Qλ is partially ordered in such a way that a filter F1 is more informative than F2 iff F1 includes F2. Qλ-forcing adjoins an ultrafilter on ω but adds no new reals. We analyze Qλ-forcing from a forcing-theoretic viewpoint. We also analyze the properties of Qλ-generic ultrafilters. These properties are independent of ZFC and depend very much on the ground model. In particular, we study Qλ-forcing over ground models which are Cohen real extensions, random real extensions, and models which satisfy Martin's Axiom.In §2 we give notations and definitions, and review some of the basic facts about forcing and ultrafilters which we will use. In §3 we introduce Qλ-forcing and prove some basic lemmas about it. §4 studies Qc-forcing. §§5, 6, and 7 analyze Qλ-forcing over ground models of Martin's Axiom, ground models which are generated by Cohen reals, and ground models which are generated by random reals, respectively. Qλ-forcing over Cohen real and random real models is isomorphic to the notion of forcing which adjoins a Cohen generic subset of λ; this is proved in §8.
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Li, Yong-An. "Synthesis for Butterworth Filter Using Compact VDTA Based on Sallen- Key Topology." Recent Advances in Electrical & Electronic Engineering (Formerly Recent Patents on Electrical & Electronic Engineering) 13, no. 5 (2020): 681–88. http://dx.doi.org/10.2174/2352096512666191004123213.

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Background: The original filter including grounded or virtual ground capacitors can be synthesized by using the NAM expansion. However, so far the filters including floating capacitor, such as Sallen-Key filter, have not been synthesized by means of the NAM expansion. This is a problem to be researched further. Methods: By using the adjoint network theory, the Sallen-Key filter including floating capacitor first is turned into a current-mode one, which includes a grounded capacitor and a virtual ground capacitor. Then the node admittance matrix, after derived, is extended by using NAM expansion. Results: At last, one VDTA Sallen-Key filter is received. It employs single compact VDTA and two grounded capacitors. Conclusion: A Butterworth VDTA second-order frequency filter based on Sallen-Key topology with fo = 100kHz, HLP = -HBP=1, is designed.
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Dastkhosh, Amir Reza, Gholamreza Dadashzadeh, and Mohammad Hossein Sedaaghi. "New Design Method of UWB Microstrip Filters Using Adaptive Genetic Algorithms with Defected Ground Structures." International Journal of Microwave Science and Technology 2010 (May 12, 2010): 1–9. http://dx.doi.org/10.1155/2010/671515.

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The effects of adaptive genetic algorithms (AGAs) and defected ground structures (DGSs) on performance optimization of tapered microstrip filter are investigated. The proposed structure achieves an ultra wide stopband with high attenuation within a small surface area, as well as 45% smaller size, in comparison with conventional filters. The parameters of the filter are optimized using in-home AGA code. In the proposed AGA algorithm, the crossover and mutation probabilities are adaptively changed according to the value of individual fitness. Then by utilizing the proposed DGS, a compact S-band lowpass filter with ultra-wide spurious free window is obtained. The proposed filter achieves an insertion loss of 0.8 dB from DC up to 4 GHz and 21 dB rejection in the stopband from 4.3 up to 60 GHz. The fabricated and measured results exhibit good agreement with the simulated results. They demonstrate that combining AGA and DGS yields best possible response for this group of filters.
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Dissertations / Theses on the topic "Ground filter"

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Odom, Craig Allen. "Navigation solution for the Texas A&M autonomous ground vehicle." Texas A&M University, 2006. http://hdl.handle.net/1969.1/4244.

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The need addressed in this thesis is to provide an Autonomous Ground Vehicle (AGV) with accurate information regarding its position, velocity, and orientation. The system chosen to meet these needs incorporates (1) a differential Global Positioning System, (2) an Inertial Measurement Unit consisting of accelerometers and angular-rate sensors, and (3) a Kalman Filter (KF) to fuse the sensor data. The obstacle avoidance software requires position and orientation to build a global map of obstacles based on the returns of a scanning laser rangefinder. The path control software requires position and velocity. The development of the KF is the major contribution of this thesis. This technology can either be purchased or developed, and, for educational and financial reasons, it was decided to develop instead of purchasing the KF software. This thesis analyzes three different cases of navigation: one-dimensional, two dimensional and three-dimensional (general). Each becomes more complex, and separating them allows a three step progression to reach the general motion solution. Three tests were conducted at the Texas A&M University Riverside campus that demonstrated the accuracy of the solution. Starting from a designated origin, the AGV traveled along the runway and then returned to the same origin within 11 cm along the North axis, 19 cm along the East axis and 8 cm along the Down axis. Also, the vehicle traveled along runway 35R which runs North-South within 0.1°, with the yaw solution consistently within 1° of North or South. The final test was mapping a box onto the origin of the global map, which requires accurate linear and angular position estimates and a correct mapping transformation.
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Stylianides, Theodoros. "Highway filter drains maintenance management." Thesis, Loughborough University, 2017. https://dspace.lboro.ac.uk/2134/27533.

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Across a large part of the UK highways network the carriageway and pavement foundations are drained by Highway Filter Drains (HFDs). A HFD is a linear trench constructed either at the pavement edge or central reserve, fitted with a porous carrier pipe at the base and backfilled with an initially highly porous aggregate material. This arrangement enables the swift removal of surface runoff and subsurface water from the pavement system minimising road user hazards and eliminating risk of structural damage to the pavement sub-base. The highly porous backfill filters throughout its operational life fines washed from the pavement wearing course or adjacent land. HFDs have been found to be prone to collecting near the basal sections (pipe) or surface layers contaminants or detritus that causes the filter media to gradually block. The process has been defined as HFD clogging and it has been found to lead to reduced drainage capacity and potentially severe drop of serviceability. O&M contractual agreements for DBFO projects usually propose in-service and handback requirements for all assets included in the concession portfolio. Different performance thresholds are thus prescribed for pavements, structures, ancillary assets or street lighting. Similar definitions can be retrieved for drainage assets in such agreements, and these include HFDs. Performance metrics are defined though in a generic language and residual life (a key indicator for major assets that usually drives long-term maintenance planning) is prescribed without indicative means to evaluate such a parameter. Most of pavement maintenance is carried out nowadays using proactive management thinking and engineered assessment of benefits and costs of alternative strategies (what-if scenarios). Such a proactive regime is founded upon data driven processes and asset specific ageing / renewal understanding. Within the spectrum of road management, maintenance Life Cycle Costs are usually generated and updated on an annual basis using inventory and condition data linked to a Decision Support Tool (DST). This enables the assessment and optimisation of investment requirements and projection of deterioration and of treatment impacts aligned to continuous monitoring of asset performance. Following this paradigm shift in infrastructure management, a similar structured methodology to optimise HFD maintenance planning is desired and is introduced in this thesis. The work presented enables the identification of proactive maintenance drivers and potential routes in applying a systemised HFD appraisal and monitoring system. An evaluation of Asset Management prerequisites is thus discussed linked to an overview of strategic requirements to establish such a proactive approach. The thesis identifies condition assessment protocols and focuses on developing the means to evaluate deteriorated characteristics of in service drains using destructive and non-destructive techniques. A probabilistic HFD ageing / renewal model is also proposed using Markov chains. This builds upon existing deterioration understanding and links back to current treatment options and impacts. A filter drain decision support toolkit is lastly developed to support maintenance planning and strategy generation.
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Fakoorian, Seyed Abolfazl. "Ground Reaction Force Estimation in Prosthestic Legs with an Extended Kalman Filter." Cleveland State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=csu148227120124386.

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Sun, Yanshen. "Evaluating the quality of ground surfaces generated from Terrestrial Laser Scanning (TLS) data." Thesis, Virginia Tech, 2019. http://hdl.handle.net/10919/90577.

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Researchers and GIS analysts have used Aerial Laser Scanning (ALS) data to generate Digital Terrain Models (DTM) since the 1990s, and various algorithms developed for ground point extraction have been proposed based on the characteristics of ALS data. However, Terrestrial Laser Scanning (TLS) data, which might be a better indicator of ground morphological features under dense tree canopies and more accessible for small areas, have been long ignored. In this research, the aim was to evaluate if TLS data were as qualified as ALS to serve as a source of a DTM. To achieve this goal, there were three steps: acquiring and aligning ALS and TLS of the same region, applying ground filters on both of the data sets, and comparing the results. Our research area was a 100m by 140m region of grass, weeds and small trees along Strouble's Creek on the Virginia Tech campus. Four popular ground filter tools (ArcGIS, LASTools, PDAL, MCC) were applied to both ALS and TLS data. The output ground point clouds were then compared with a DTM generated from ALS data of the same region. Among the four ground filter tools employed in this research, the distances from TLS ground points to the ALS ground surface were no more than 0.06m with standard deviations less than 0.3m. The results indicated that the differences between the ground extracted from TLS and that extracted from ALS were subtle. The conclusion is that Digital Terrain Models (DTM) generated from TLS data are valid.<br>Master of Science<br>Elevation is one of the most basic data for researches such as flood prediction and land planning in the field of geography, agriculture, forestry, etc. The most common elevation data that could be downloaded from the internet were acquired from field measurements or satellites. However, the finest grained of that kind of data is 1/3m and errors can be introduced by ground objects such as trees and buildings. To acquire more accurate and pure-ground elevation data (also called Digital Terrain Models (DTM)), Researchers and GIS analysts introduced laser scanners for small area geographical research. For land surface data collection, researchers usually fly a drone with laser scanner (ALS) to derive the data underneath, which could be blocked by ground objects. An alternative way is to place the laser scanner on a tripod on the ground (TLS), which provides more data for ground morphological features under dense tree canopies and better precision. As ALS and TLS collect data from different perspectives, the coverage of a ground area can be different. As most of the ground extraction algorithm were designed for ALS data, their performance on TLS data hasn’t been fully tested yet. Our research area was a 100m by 140m region of grass, weeds and small trees along Strouble’s Creek on the Virginia Tech campus. Four popular ground filter tools (ArcGIS, LASTools, PDAL, MCC) were applied to both ALS and TLS data. The output ground point clouds were then compared with a ground surface generated from ALS data of the same region. Among the four ground filter tools employed in this research, the distances from TLS ground points to the ALS ground surface were no more than 0.06m with standard deviations less than 0.3m. The results indicated that the differences between the ground extracted from TLS and that extracted from ALS were subtle. The conclusion is that Digital Terrain Models (DTM) generated from TLS data are valid.
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Burusa, Akshay Kumar. "Visual-Inertial Odometry for Autonomous Ground Vehicles." Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-217284.

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Monocular cameras are prominently used for estimating motion of Unmanned Aerial Vehicles. With growing interest in autonomous vehicle technology, the use of monocular cameras in ground vehicles is on the rise. This is especially favorable for localization in situations where Global Navigation Satellite System (GNSS) is unreliable, such as open-pit mining environments. However, most monocular camera based approaches suffer due to obscure scale information. Ground vehicles impose a greater difficulty due to high speeds and fast movements. This thesis aims to estimate the scale of monocular vision data by using an inertial sensor in addition to the camera. It is shown that the simultaneous estimation of pose and scale in autonomous ground vehicles is possible by the fusion of visual and inertial sensors in an Extended Kalman Filter (EKF) framework. However, the convergence of scale is sensitive to several factors including the initialization error. An accurate estimation of scale allows the accurate estimation of pose. This facilitates the localization of ground vehicles in the absence of GNSS, providing a reliable fall-back option.<br>Monokulära kameror används ofta vid rörelseestimering av obemannade flygande farkoster. Med det ökade intresset för autonoma fordon har även användningen av monokulära kameror i fordon ökat. Detta är fram för allt fördelaktigt i situationer där satellitnavigering (Global Navigation Satellite System (GNSS)) äropålitlig, exempelvis i dagbrott. De flesta system som använder sig av monokulära kameror har problem med att estimera skalan. Denna estimering blir ännu svårare på grund av ett fordons större hastigheter och snabbare rörelser. Syftet med detta exjobb är att försöka estimera skalan baserat på bild data från en monokulär kamera, genom att komplettera med data från tröghetssensorer. Det visas att simultan estimering av position och skala för ett fordon är möjligt genom fusion av bild- och tröghetsdata från sensorer med hjälp av ett utökat Kalmanfilter (EKF). Estimeringens konvergens beror på flera faktorer, inklusive initialiseringsfel. En noggrann estimering av skalan möjliggör också en noggrann estimering av positionen. Detta möjliggör lokalisering av fordon vid avsaknad av GNSS och erbjuder därmed en ökad redundans.
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Johnson, Hyrum David 1972. "Real-time identification for ground vehicle trajectory estimation using extended Kalman filter residual analysis." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/80015.

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Green, Mark P. (Mark Peter) 1958. "Extended Kalman filter for integrating tracking data from ground-based radar and airborne global positioning system." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/49627.

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Kirchhoff, Allan Richard. "Text Localization for Unmanned Ground Vehicles." Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/52569.

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Unmanned ground vehicles (UGVs) are increasingly being used for civilian and military applications. Passive sensing, such as visible cameras, are being used for navigation and object detection. An additional object of interest in many environments is text. Text information can supplement the autonomy of unmanned ground vehicles. Text most often appears in the environment in the form of road signs and storefront signs. Road hazard information, unmapped route detours and traffic information are available to human drivers through road signs. Premade road maps lack these traffic details, but with text localization the vehicle could fill the information gaps. Leading text localization algorithms achieve ~60% accuracy; however, practical applications are cited to require at least 80% accuracy [49]. The goal of this thesis is to test existing text localization algorithms against challenging scenes, identify the best candidate and optimize it for scenes a UGV would encounter. Promising text localization methods were tested against a custom dataset created to best represent scenes a UGV would encounter. The dataset includes road signs and storefront signs against complex background. The methods tested were adaptive thresholding, the stroke filter and the stroke width transform. A temporal tracking proof of concept was also tested. It tracked text through a series of frames in order to reduce false positives. Best results were obtained using the stroke width transform with temporal tracking which achieved an accuracy of 79%. That level of performance approaches requirements for use in practical applications. Without temporal tracking the stroke width transform yielded an accuracy of 46%. The runtime was 8.9 seconds per image, which is 44.5 times slower than necessary for real-time object tracking. Converting the MATLAB code to C++ and running the text localization on a GPU could provide the necessary speedup<br>Master of Science
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Winkler, Joseph W. "An Investigation into Ground Moving Target Indication (GMTI) Using a Single-Channel Synthetic Aperture Radar (SAR)." BYU ScholarsArchive, 2013. https://scholarsarchive.byu.edu/etd/3555.

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Synthetic aperture radar (SAR) was originally designed as an airborne ground-imaging radar technology. But it has long been desired to also be able to use SAR imaging systems to detect, locate, and track moving ground targets, a process called Ground Moving Target Indication (GMTI). Unfortunately, due to the nature of how SAR works, it is inherently poorly suited to the task of GMTI. SAR only focuses targets and image features that remain stationary during the data collection. A moving ground target therefore does not focus in a conventional SAR image, which complicates the process of performing GMTI with SAR systems. This thesis investigates the feasibility of performing GMTI with single-channel, unsquinted, broadside stripmap SAR despite this inherent limitation. This study focuses solely on the idealized case of direct energy returns from point targets on flat ground, where they and the airborne radar platform all move rectilinearly with constant speed. First, the various aspects of how SAR works, the signal processing used to collect the SAR data, and the backprojection image formation algorithm are explained. The effects of target motion are described and illustrated in actual and simulated SAR images. It is shown how the backprojection (BPJ) algorithm, typically used to image a stationary landscape scene, can also focus on moving targets when the target motion is known a priori. A SAR BPJ ambiguity function is also derived and presented. Next, the time-changing geometry between the airborne radar and a ground target is mathematically analyzed, and it is shown that the slant range between the radar and any ground target, moving or stationary, is a hyperbolic function of time. It is then shown that this hyperbolic range history causes the single-channel SAR GMTI problem to be underdetermined. Finally, a method is then presented for resolving the underdetermined nature of the problem. This is done by constraining a target's GMTI solution using contextual information in the SAR image. Using constraining information, a theoretical way is presented to perform limited GMTI with a single-channel SAR system by using a modified form of the BPJ imaging algorithm, and practical considerations are addressed that complicate the process. Instead of focusing on stationary pixels, this GMTI method uses the BPJ ambiguity function to search for moving targets on a straight path, such as a road, by performing matched filtering on a collection of moving pixels in a position-velocity image space. Nevertheless, it is concluded that for moving point targets, general GMTI with no path constraints is infeasible in practice with a single-channel SAR.
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Himstedt, Marian. "Localization of autonomous ground vehicles in dense urban environments." Master's thesis, HTW Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:520-qucosa-126122.

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The localization of autonomous ground vehicles in dense urban environments poses a challenge. Applications in classical outdoor robotics rely on the availability of GPS systems in order to estimate the position. However, the presence of complex building structures in dense urban environments hampers a reliable localization based on GPS. Alternative approaches have to be applied In order to tackle this problem. This thesis proposes an approach which combines observations of a single perspective camera and odometry in a probabilistic framework. In particular, the localization in the space of appearance is addressed. First, a topological map of reference places in the environment is built. Each reference place is associated with a set of visual features. A feature selection is carried out in order to obtain distinctive reference places. The topological map is extended to a hybrid representation by the use of metric information from Geographic Information Systems (GIS) and satellite images. The localization is solved in terms of the recognition of reference places. A particle lter implementation incorporating this and the vehicle's odometry is presented. The proposed system is evaluated based on multiple experiments in exemplary urban environments characterized by high building structures and a multitude of dynamic objects.
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Books on the topic "Ground filter"

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Spoor, Cynthia. Framework from the ground up. Bantam Books, 1985.

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MFC programming from the ground up. Osborne McGraw-Hill, 1996.

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Schildt, Herbert. MFC programming from the ground up. 2nd ed. Osborne/McGraw-Hill, 1998.

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Schildt, Herbert. Windows 98 programming from the ground up. Osborne McGraw-Hill, 1998.

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Schildt, Herbert. Windows 2000 programming from the ground up. Osborne/McGraw-Hill, 2000.

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Marone, Enrico, ed. La filiera del tartufo e la sua valorizzazione in Toscana e Abruzzo. Firenze University Press, 2011. http://dx.doi.org/10.36253/978-88-6655-036-5.

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There can be no valorisation of the truffle system without a sufficient awareness of the chain that brings the truffle from the ground to the consumer. This in fact renders explicit the link between the product and the territory of origin, eliminating disparities at the level of information between the consumer and the gatherer/producer/transformer. In this case, the value of the product is increased to the extent that along with it we also acquire the quality of the environment that produces it. The research that is presented in this volume offers valid elements of orientation, both for those working in the sector and for the public sector, to which it offers knowledge useful for the defence of the local product and for guiding sector policies.
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Kikō, Genshiryoku Anzen Kiban. Heisei 18-nendo kara Heisei 20-nendo ni hasseishita Tōkyō Denryoku (Kabu) Fukushima Daini Genshiryoku Hatsudensho no jūten kokatai ni taisuru sukēringu fakuta tō no keizoku shiyō no datōsei hyōka ni tsuite: Adequacy evaluation of contituous use of scaling factors and average radioactivity concentration on container-filled and solidified waste packages generated from Fukushima Daini Nuclear Power Plant from FY 2006 to FY 2008. Genshiryoku Anzen Kiban Kikō, 2013.

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A filtered category OS and applications. American Mathematical Society, 1990.

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Guo, Weixing. User's guide to SEAWAT: A computer program for simulation of three-dimensional variable-density ground-water flow. U.S. Dept. of the Interior, U.S. Geological Survey, 2002.

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Guo, Weixing. User's guide to SEAWAT: A computer program for simulation of three-dimensional variable-density ground-water flow. U.S. Dept. of the Interior, U.S. Geological Survey, 2002.

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Book chapters on the topic "Ground filter"

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Title, Alan M., Theodore D. Tarbell, and C. Jacob Wolfson. "Ground-Based Tunable Filter Observations." In Solar and Stellar Granulation. Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-0911-3_5.

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Batmanov, A., A. Boutejdar, A. Balalem, A. Omar, and E. Burte. "New Coplanar Low-Pass Defected Ground Structure (DGS) Filter." In Ultra-Wideband, Short Pulse Electromagnetics 9. Springer New York, 2010. http://dx.doi.org/10.1007/978-0-387-77845-7_18.

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Thakur, Hrishikesh, Hashinur Islam, Saumya Das, Sourav Dhar, and Mruthyunjaya HS. "Design of UWB Bandpass Filter Including Defective Ground Structure." In Advances in Communication, Devices and Networking. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-4932-8_36.

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Dixit, Amrita, Ashok Kumar, Ashok Kumar, and Arjun Kumar. "Investigation of Substrate Integrated Waveguide (SIW) Filter Using Defected Ground Structure (DGS)." In Lecture Notes in Electrical Engineering. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-2926-9_50.

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Verma, Pratibha, Tamasi Moyra, Dwipjoy Sarkar, Priyansha Bhowmik, Sarbani Sen, and Dharmvir Kumar. "Coplanar Waveguide UWB Bandpass Filter Using Defected Ground Structure and Interdigital Capacitor." In Advances in Intelligent Systems and Computing. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0224-4_44.

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Mauriya, Vinod Kumar. "Application of Bottom Ash as Filter Material in Construction of Dyke Embankment for Sustainable Infrastructure." In Sustainable Thoughts in Ground Improvement and Soil Stability. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-34184-8_8.

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Desai, Chandni V., and Pravin R. Prajapati. "Application of the Fractal Defected Ground Structure in Design of the Bandpass Filter." In Advances in Intelligent Systems and Computing. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1513-8_7.

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Mondal, P., H. Dey, and S. K. Parui. "Design of Microstrip Lowpass Filter in Combination with Defected Ground and Defected Microstrip Structures." In Computational Advancement in Communication Circuits and Systems. Springer India, 2015. http://dx.doi.org/10.1007/978-81-322-2274-3_8.

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Cuesta, Francisco, Miguel Cordero, Luis Díaz, Antidio Viguria, and Aníbal Ollero. "A Particle Filter-Based Method for Ground-Based WSN Localization Using an Aerial Robot." In Cooperative Robots and Sensor Networks 2015. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-18299-5_7.

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XiongHua, Fan, Jiang Jing, and Gao Lan. "A Practical Filter of Varying Rate Measurement of Multiple Airborne and Ground-based Radars." In Lecture Notes in Electrical Engineering. Springer London, 2012. http://dx.doi.org/10.1007/978-1-4471-2386-6_190.

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Conference papers on the topic "Ground filter"

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Lee, Wonchul, and Walter Lempert. "Rubidium Vapor Filter Spectrally Filtered Thomson Scattering." In 22nd AIAA Aerodynamic Measurement Technology and Ground Testing Conference. American Institute of Aeronautics and Astronautics, 2002. http://dx.doi.org/10.2514/6.2002-3236.

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Becquey, M., and M. Manin. "Ellipticity filter for ground-roll removal." In 58th EAEG Meeting. EAGE Publications BV, 1996. http://dx.doi.org/10.3997/2214-4609.201409167.

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Cormack, Gordon V., and Aleksander Kolcz. "Spam filter evaluation with imprecise ground truth." In the 32nd international ACM SIGIR conference. ACM Press, 2009. http://dx.doi.org/10.1145/1571941.1572045.

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Dube, F. N., and John C. Devlin. "New LMS adaptive filter for GPR processing." In 8th International Conference on Ground Penetrating Radar, edited by David A. Noon, Glen F. Stickley, and Dennis Longstaff. SPIE, 2000. http://dx.doi.org/10.1117/12.383603.

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Henrique Cáceres Figueiredo, Pedro, Liacir Dos Santos Lucena, and Brasil Gabriel De Almeida Araújo. "Filter Kl/Svd For Ground Roll Noise Attenuation." In 11th International Congress of the Brazilian Geophysical Society. European Association of Geoscientists & Engineers, 2009. http://dx.doi.org/10.3997/2214-4609-pdb.195.1692_evt_6year_2009.

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Wu, Bin, Naichang Yuan, Faxiao Zhang, and Shuang Wu. "Wideband band-pass filter with defected ground structure." In 2017 IEEE 2nd Advanced Information Technology, Electronic and Automation Control Conference (IAEAC). IEEE, 2017. http://dx.doi.org/10.1109/iaeac.2017.8054397.

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Rehman, Sajjad Ur, Abdel Fattah Sheta, and Majeed Alkanhal. "Compact bandstop filter using defected ground structure (DGS)." In 2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC). IEEE, 2011. http://dx.doi.org/10.1109/siecpc.2011.5876972.

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Rehman, Sajjad Ur, Abdel Fattah A. Sheta, Majeed A. S. Alkanhal, and Rao Shahid Aziz. "Reconfigurable bandstop filter using Defected Ground Structure (DGS)." In 2013 18th International Conference on Digital Signal Processing (DSP). IEEE, 2013. http://dx.doi.org/10.1109/siecpc.2013.6550741.

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Li, Xiaoming. "Asymmetric coplanar waveguide filter with defected ground structure." In 2014 XXXIth URSI General Assembly and Scientific Symposium (URSI GASS). IEEE, 2014. http://dx.doi.org/10.1109/ursigass.2014.6929176.

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Poplavko, Y., D. Schmigin, V. Pashkov, M. Jeong, and S. Baik. "Tunable microstrip filter with piezo-moved ground electrode." In 2005 European Microwave Conference. IEEE, 2005. http://dx.doi.org/10.1109/eumc.2005.1610171.

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Reports on the topic "Ground filter"

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Kilpatrick, L. L. Particle size distribution of ground ITP washed precipitate for estimating filter box radioactive cesium release during transfer. Office of Scientific and Technical Information (OSTI), 1993. http://dx.doi.org/10.2172/10107805.

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Esser, B., W. McConachie, R. Fischer, M. Sutton, and S. Szechenyi. Radiochemical Analyses of the Filter Cake, Granular Activated Carbon, and Treated Ground Water from the DTSC Stringfellow Superfund Site Pretreatment Plant. Office of Scientific and Technical Information (OSTI), 2005. http://dx.doi.org/10.2172/919597.

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Laird, Daniel T. A Memory Lattice of Quadrature Memory Filter Groups. Defense Technical Information Center, 2004. http://dx.doi.org/10.21236/ada426279.

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NICHOLS, RALPH. ULTRA-HIGH-PERFORMANCE GROUT FOR ENCAPSULATION OF HEPA FILTERS. Office of Scientific and Technical Information (OSTI), 2021. http://dx.doi.org/10.2172/1768189.

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Burgess, M. M. Norman Wells Pipeline Monitoring Sites, Ground Temperature Data File: 1986. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1987. http://dx.doi.org/10.4095/130323.

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Burgess, M. M., and J. A. Naufal. Norman Wells Pipeline Monitoring Sites Ground Temperature Data File: 1989. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1991. http://dx.doi.org/10.4095/132210.

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Burgess, M. M., and J. A. Naufal. Norman Wells Pipeline Monitoring Sites Ground Temperature Data File: 1987. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/130590.

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Burgess, M. M., and J. A. Naufal. Norman Wells Pipeline Monitoring Sites Ground Temperature Data File: 1988. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1990. http://dx.doi.org/10.4095/130802.

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Burgess, M. M. Norman wells pipeline monitoring sites, ground temperature data file: 1984-1985. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1985. http://dx.doi.org/10.4095/293484.

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Miller, E. M. CSER 95-008: Criticality storage category for grouted K Basin cartridge filters at CWC. Office of Scientific and Technical Information (OSTI), 1995. http://dx.doi.org/10.2172/93491.

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