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Dissertations / Theses on the topic 'Frequency modulated continuous wave radar'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Chauhan, Ruchir. "A Platform for False Data Injection in Frequency Modulated Continuous Wave Radar." DigitalCommons@USU, 2014. https://digitalcommons.usu.edu/etd/3964.

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Radar is an acronym for RAdio Detection And Ranging. In general terms, it is a machine that uses radio waves for object-detection in its near periphery. It transmits radio waves in a known direction, which when intercepted by an obstruction/object are reflected by its surface and are received back at the radar system. The round trip delay time along with the known velocity of radio waves gives an accurate measurement of the distance of the object from the radar system. In a somewhat similar fashion, some radars are even capable of measuring the velocity of this object. Frequency-modulated cont

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2

Middleton, Robert. "Techniques for homodyne dechirp-on-receive linearly frequency modulated radar." Thesis, University of St Andrews, 2011. http://hdl.handle.net/10023/1843.

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This thesis presents work done to extend and improve the operation of homodyne dechirp-on-receive linearly frequency modulated radars. First, an investigation of the effect of common phase errors on the point response function of the radar is described. The dependence on the window function of the degradation due to phase errors is investigated, and a simple, precise, and general approach for calculating the degraded Point Spread Function (PSF) is described and demonstrated. This method is shown to be particularly useful when investigating the effect of chirp nonlinearity on the PSF. Next, a m

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3

Kondrath, Andrew Stephen. "Frequency Modulated Continuous Wave Radar and Video Fusion for Simultaneous Localization and Mapping." Wright State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=wright1347715085.

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4

Käll, Daniel, and Emelie Lannerhjelm. "Design and Development of Data Acquisition/Processing and Communication Interface for Radar Front-End." Thesis, Linköpings universitet, Fysik och elektroteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-133208.

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This thesis follows the design process of a back end. The purpose of this back end is to interface a radar front end, developed by Acreo Swedish ICT, and stream its digitalized output to a PC using Universal Serial Bus (USB) 3.0. The front end, which acts as a basis for this project, is a Frequency Modulated Continuous Wave (FMCW) radar which is connected to the back end by a header. The header connects the digitalized radar signals, together with two SPI-buses and a few GPIO pins. Thus, enabling configuration and set up of the front end board via a PC. The result of the thesis is a data acqu

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5

Pichler, Markus. "Phase-locked-loop-based signal synthesis for frequency-modulated continuos wave radar /." Linz : Trauner, 2008. http://opac.nebis.ch/cgi-bin/showAbstract.pl?u20=9783854993889.

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6

Nguyen, Toai-Chi. "Design of an Ultra-Wideband Frequency-Modulated Continuous Wave Short Range Radar System for Extending Independent Living." DigitalCommons@CalPoly, 2021. https://digitalcommons.calpoly.edu/theses/2289.

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Falls in the disabled and elderly people have been a cause of concern as they can be immobilized by the fall and have no way to contact others and seek assistance. The proposed frequency modulated continuous wave (FMCW) short range radar (SRR) system, which uses ultra-wideband (UWB) signals can provide immediate assistance by monitoring and detecting fall events. The unique characteristics of this system allow for a frequency-based modulation system to carry out triangulation and sense the location of the fall through the usage of a continuous chirp signal that linearly sweeps frequency. This

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7

Kohls, Nicholas Everett. "Software Defined Radio Short Range Radar." BYU ScholarsArchive, 2021. https://scholarsarchive.byu.edu/etd/9027.

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High cost is a current problem with modern radar systems. Software-defined radios (SDRs) offer a possible solution for low-cost customizable radar systems. An SDR is a radio communi- cation system where, instead of the traditional radio components implemented in hardware, many of the components are implemented in software on a computer or embedded system. Although SDRs were originally designed for wireless communication systems, the firmware of an SDR can be configured into a radar system. With new companies entering the market, various types of low- cost SDRs have emerged. This thesis explore

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Monk, Andrew Michael. "Exploration into the Use of a Software Defined Radio as a Low-Cost Radar Front-End." BYU ScholarsArchive, 2020. https://scholarsarchive.byu.edu/etd/8742.

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Inspection methods for satellites post-launch are currently expensive and/or dangerous. To address this, BYU, in conjunction with NASA, is designing a series of small satellites called CubeSATs. These small satellites are designed to be launched from a satellite and to visually inspect the launching body. The current satellite revision passively tumbles through space and is appropriately named the passive inspection cube satellite (PICS). The next revision actively maintains translation and rotation relative to the launching satellite and is named the translation, rotation inspection cube sate

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Smet, Adrian. "RF Front End for an Integrated Silhouette Capture and Boundary Detection Frequency Modulated Continuous Wave Ultra-Wideband Radar System for the Extension of Independent Living." DigitalCommons@CalPoly, 2017. https://digitalcommons.calpoly.edu/theses/1799.

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Limitations of current eldercare monitoring systems leave a need for new solutions. A monitoring system based on a frequency modulated continuous wave ultra-wideband short-range radar is proposed for this application. The complete proposed monitoring system is comprised of four blocks: boundary detection, silhouette capture, human identification, and data transmission. This paper develops the RF front end hardware for the silhouette capture subsystem. System requirements are derived for the silhouette capture subsystem. An architecture for the RF front end is designed, and required individual

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10

Tang, Wilson. "A Frequency-Modulated Continuous Wave-Based Boundary Detection System for Determination of Monitoring Region for an Indoor Ultra-Wideband Short Range Radar-Based Eldercare Monitoring System." DigitalCommons@CalPoly, 2011. https://digitalcommons.calpoly.edu/theses/566.

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Falls are a cause of concern for the elderly since it can render a person immobile. A monitoring system can summon immediate aid by the automatic detection of fall events. The application of ultra-wideband (UWB) signals for a monitoring system was chosen due to its unique characteristics such as wide spectrum, immunity to interference, penetrability, and application for the detection of people. Part of this monitoring system is boundary detection with the purpose of isolating the location of fall events and to function as a mask to define an area of interest. A study of various localizing meth

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11

Camponeschi, Matteo. "Analysis and design of CMOS and bipolar SiGe:C integrated circuits for low power RF receivers and radar applications." Doctoral thesis, Università degli studi di Padova, 2010. http://hdl.handle.net/11577/3427529.

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This dissertation proposes the analysis and the design of two radio-frequency integrated circuits. In the first part a low-power wireless receiver front-end for Wireless Sensor Networks is developed. The circuit comprises a Low-Noise Amplifier, Voltage Controlled Oscillators and Mixers, building a complete single-stage quadrature receiver front-end for low-power applications. The compact architecture based on a current reuse topology is described and motivated; an in-depth time-variant analysis is performed to optimize the circuit; a test 2.4GHz receiver is finally designed and realized in a

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12

Malan, Frederich T. "Reduction of the antenna coupling in a bi-static, FM-CW radar system." Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/18029.

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Thesis (MScEng)--Stellenbosch University, 2011.<br>ENGLISH ABSTRACT: A well-known problem with FM-CW radar systems is the leakage of transmitter power into the receiver which leads to the making of close-in targets, and can severely limit the system dynamic range performance. This thesis considers two solutions to this radar system problem for a low frequency radar operating in the VHF band. The first method to suppress coupling is using separate transmit and receive antennas designed in such a way as to reduce coupling between them. The second is to design a negative feedback loop as part of

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13

Stofberg, Anneke. "IQ reflected power canceller for an FMCW radar." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/86640.

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Thesis (MEng)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: Large close range environmental reflections or poor isolation between the transmit and receive paths of an FMCW radar can overload the receiver. The In phase and Quadrature phase (IQ) Reflected Power Canceller (RPC) provides a solution to the problem by cancelling any close range reflections. In this study a procedure to optimise the design of an RPC is developed and the performance limits of a practical RPC is investigated in depth. There are four focus areas in the evaluation and design of the IQ Reflected Power Cancel

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Nordin, Daniel. "Optical frequency modulated continuous wave (FMCW) range and velocity measurements." Doctoral thesis, Luleå, 2004. http://epubl.luth.se/1402-1544/2004/43.

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15

Clarke, Bryan Russell. "Frequency Modulated Continuous Waveform Radar for Collision Prevention in Large Vehicles." Thesis, The University of Sydney, 2015. http://hdl.handle.net/2123/14034.

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The drivers of large vehicles can have very limited visibility, which contributes to poor situation awareness and an increased risk of collision with other agents. This thesis is focused on the development of reliable sensing for this close proximity problem in large vehicles operating in harsh environmental conditions. It emphasises the use of in-depth knowledge of a sensor’s physics and performance characteristics to develop effective mathematical models for use in different mapping algorithms. An analysis of the close proximity problem and the demands it poses on sensing technologies is pre

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Ahmed, Atheeq. "Human Detection Using Ultra Wideband Radar and Continuous Wave Radar." Thesis, Linköpings universitet, Kommunikationssystem, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-137996.

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A radar works by radiating electromagnetic energy and detecting the reflected signal returned from the target. The nature of the reflected signal provides information about the target’s distance or speed. In this thesis, we will be using a UWB radar and a CW radar to help detect the presence and rough location of trapped survivors by detecting their motions. Range is estimated in the UWB radar using clutter removal with SVD and for the dual frequency CW Radar using STFT and median filtering. The effect of the algorithm parameters on their performance was analyzed. The performance of the implem

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17

Jha, Ajit. "Continuous wave frequency modulated optical feedback (CWFM-OF) : theory and applications." Doctoral thesis, Universitat Politècnica de Catalunya, 2016. http://hdl.handle.net/10803/404304.

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Diese Arbeit soll einen Beitrag leisten zur Entwicklung neuer Sensorstrategien, basierend auf Phänomenen der optischer Rückkopplung, in Kombination mit die Intensitätsmodulation des Lasers. Optische Rückkopplung, ein Phänomen, bei dem ein Teil des vom Laser emittierten Felds in die Kavität zurückgeleitet wird, wurde früher im Kontext der Glasfaserkommunikation aufgrund der Einführung von Laser-Instabilitäten als störend angesehen. Heutzutage wird optische Rückkopplung als leistungsfähiger photonischer Sensor für praxisorientierte Anwendungen in Betracht gezogen. Optische Rückkopplung beeinflus

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18

Heuschel, Eugene R. "Time-frequency, bi-frequency detector analysis of noise technology radar." Thesis, Monterey, California. Naval Postgraduate School, 2006. http://hdl.handle.net/10945/2636.

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Enemy integrated air defense systems (IADS) using low probability of intercept (LPI) emitters can cause significant problems for suppression of enemy air defense (SEAD) techniques. New threat emitter configurations using low-power random noise modulation have a significant processing gain unavailable to non-cooperative intercept receivers. Consequently, the detection of these emitters can not be accomplished with conventional intercept receiver detection methods. This thesis examines the use of time-frequency, bi-frequency signal detection techniques to identify the parameters of the fou

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19

Zavrsnik, Miha. "Application of the FMCW method to quasi-distributed absorption sensors." Thesis, University of Strathclyde, 2000. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=21176.

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We report on different addressing mechanisms for quasi-distributed absorption sensors based on the frequency modulated continuous wave (FMCW) method. The sensor units consist of open-path micro-optic cells constructed from GRIN lenses, each of differing lengths. Guided by initial simulations, two approaches are experimentally investigated and evaluated, namely reference arm addressing and coherence addressing. Reference arm addressing is accomplished by the selection of different length reference arms in a Michelson configuration where each reference arm corresponds to a certain sensing unit.

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20

Kabutz, Marten Herbert. "RF hardware design of a stepped frequency continuous wave ground penetrating radar." Master's thesis, University of Cape Town, 1995. http://hdl.handle.net/11427/18227.

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Bibliography: pages 86-88.<br>Research into stepped frequency continuous wave ground penetrating radar (SFCW GPR) at UCT has been carried out since 1990. A first generation system comprising of Hewlett-Packard test equipment controlled by a PC was assembled. Cavity-backed log spiral antennas were designed and built by the University of Stellenbosch for the specific use of ground penetrating radar. Measurements with the first generation system proved the concept of SFCW GPR and thus a dedicated second generation system was planned. A SFCW GPR system was designed to replace the first generation

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Fioranelli, Francesco. "Through-the-wall detection using ultra wide band frequency modulated interrupted continuous wave signals." Thesis, Durham University, 2013. http://etheses.dur.ac.uk/9432/.

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Through-The-Wall-Detection (TTWD) techniques can improve the situational awareness of police and soldiers, and support first responders in search and rescue operations. A variety of systems for TTWD based on different waveforms have been developed and presented in the literature, e.g. radar systems based on pulses, noise or pseudo-noise waveforms, and frequency modulated continuous wave (FMCW) or stepped frequency continuous wave (SFCW) waveforms. Ultra wide band signals are normally used as they provide suitable resolution to discriminate different targets. A common problem for active radar s

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22

Asgarian, Hamid R. "A FREQUENCY-MODULATED CONTINUOUS WAVE-BASED BOUNDARY DETECTION SYSTEM IN A SMALL PCB PROFILE." DigitalCommons@CalPoly, 2012. https://digitalcommons.calpoly.edu/theses/921.

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Falls are a cause of concern for the elderly because it can make them unable to call for help. A monitoring system can detect automatically their immobility and provide help to the elderly if they fall. Ultra-wide band signals for a monitoring system is an excellent choice since it has low enough power to not interfere with other medical and household electronics as well as being able to transmit data to a central monitoring unit. One part of this monitoring system is a boundary detection system used to verify that the monitoring system is not capturing events outside the monitoring region suc

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23

Seybert, Audrey, Jay Fuller, and Bryan Townley. "Detect Sense and Avoid Radar for UAV Avionics Telemetry." International Foundation for Telemetering, 2011. http://hdl.handle.net/10150/595802.

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ITC/USA 2011 Conference Proceedings / The Forty-Seventh Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2011 / Bally's Las Vegas, Las Vegas, Nevada<br>This paper describes the development and test results of a Frequency Modulated Continuous Wave (FMCW) L-Band radar testbed designed to detect obstacles in the proximity of an Unmanned Aerial Vehicle (UAV). From laboratory loopback tests, it was calculated that with pulse compression and a transmit power of 150 mW (22 dBm), the radar is capable of detecting an object with a 0.014-m2 radar cross-sectional are

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Rask, Badih John. "Range resolved optical remote sensing using a continuous wave, pseudo-random modulated, CO2 heterodyne lidar backscattered from aerosols /." Full text open access at:, 1995. http://content.ohsu.edu/u?/etd,649.

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25

Day, James V. "Construction of a continuous wave frequency modulation sensitive laser radar for use in target identification." Thesis, Monterey, California. Naval Postgraduate School, 1997. http://hdl.handle.net/10945/8147.

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Approved for public release; distribution is unlimited<br>This thesis covers the theory, design and construction of a continuous wave (CW) frequency modulation sensitive laser radar. Using a commercially available CO2 laser, optics and electronics, a CW frequency modulation sensitive laser radar was constructed and tested under laboratory conditions. The theory of each component in the laser radar is covered as well as the configuration and design of the radar. Design of a target that enabled measurement of the laser radar's capabilities was also completed. The laser radar was able to accurate

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Langman, Alan. "The design of hardware and signal processing for a stepped frequency continuous wave ground penetrating radar." Doctoral thesis, University of Cape Town, 2002. http://hdl.handle.net/11427/6932.

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Includes bibliographical references.<br>A Ground Penetrating Radar (GPR) sensor is required to provide information that will allow the user to detect, classify and identify the target. This is an extremely tough requirement, especially when one considers the limited amount of information provided by most GPRs to accomplish this task. One way of increasing this information is to capture the complete scattering matrix of the received radar waveform. The objective of this thesis is to develop a signal processing technique to extract polarimetric feature vectors from Stepped Frequency Continuous W

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27

Akangol, Mehmet. "Target Detection By The Ambiguity Function Technique And The Conventional Fourier Transform Technique In Frequency Coded Continuous Wave Radars." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606766/index.pdf.

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Continuous Wave (CW) radars are preferred for their low probability of intercept by the other receivers. Frequency modulation techniques, the linear frequency modulation (LFM) technique in particular, are commonly used in CW radars to resolve the range and the radial velocity of the detected targets. The conventional method for target detection in a linear FMCW radar makes use of a mixer followed by a low-pass filter whose output is Fourier transformed to get the range and velocity information. In this thesis, an alternative target detection technique based on the use of the Ambiguity Function

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Bačík, Martin. "Simulátor funkce FM-CW dálkoměru." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219875.

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This thesis describes design of Simulator FM-CW range finders. It is choosing the optimal method of realization and inform about basic properties of continuous working radar. The work includes an analysis of errors in real rangefinder and a numerical estimate of the maximum error in real devices. Contains detailed block diagram of simulator FM-CW range-finder and computer simulation of function generator frequency modulated signal, demodulator. Further work includes the complete construction documents for the preparation and implementation of basic functional verification

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Ustun, Teoman Emre. "Design and development of stepped frequency continuous wave and FIFO noise radar sensors for tracking moving ground vehicles /." Connect to resource, 2001. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1209077311.

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30

Jha, Ajit [Verfasser], C. [Akademischer Betreuer] Stiller, and S. [Akademischer Betreuer] Royo. "Continuous Wave Frequency Modulated Optical Feedback (CWFM-OF): Theory and Applications / Ajit Jha ; C. Stiller (KIT), Prof. S. Royo (UPC)." Karlsruhe : KIT-Bibliothek, 2016. http://d-nb.info/1132996414/34.

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31

Zietsman, Christian Frederick. "Theory, design and implementation of an IF cancellation module for use in a stepped frequency continuous wave ground penetrating radar." Master's thesis, University of Cape Town, 2004. http://hdl.handle.net/11427/14972.

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Bibliography: leaves 64-68.<br>A device has been designed that cancels the leakage signal between the transmit and receive antenna in a Stepped Frequency Continuous Wave Ground Penetrating Radar. The front end of the radar operates at high signal levels and, as a result, a large signal is coupled directly from the transmit to the receive antenna. This signal uses a signiï¬ cant part of the dynamic range of the data-capturing device, an analogue-to-digital converter (ADC). The objective of this cancellation is thus to increase the effective instantaneous dynamic range of the radar system. Simul

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Vidiyala, Sai Krishna. "Simultaneous localization and mapping with radio signals." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/24138/.

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Simultaneous localization and mapping is a concept that originated in the robotics area, where robots are traditionally equipped with a laser sensor and can navigate and map an unknown surrounding environment. High-definition distance estimates and very narrow steering beams are provided by high-accuracy SLAM technologies based on laser and mechanical steering devices. Unfortunately, these technologies are prohibitively expensive and cumbersome, and they cannot be integrated into mobile devices. This Thesis investigates millimeter wave (mmWave) radar technology to solve a SLAM problem. The te

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Bou, Sleiman Joyce. "Terahertz imaging and spectroscopy : application to defense and security." Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0077/document.

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Le but de ce travail est de quantifier le potentiel et les capacités de la technologie térahertz à contrôler des colis afin de détecter les menaces telles que les armes et les explosifs, sans avoir besoin d'ouvrir le colis.Dans cette étude, nous présentons la spectroscopie térahertz résolue en temps et l'imagerie multi-spectrale pour la détection des explosifs. Deux types d’explosifs, ainsi que leurs mélanges binaires sont analysés. En raison de la complexité de l'extraction des informations face à tels échantillons, trois outils de chimiométrie sont utilisés: l’analyse en composantes principa

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Chang, Chia-Hao, and 張家豪. "The Key Components Design of 24 GHz Frequency Modulated Continuous Wave Radar system." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/89954779574930148258.

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碩士<br>國立臺灣大學<br>電信工程學研究所<br>97<br>This thesis proposes several RF component application for K-band frequency-modulation continuous-wave (FMCW) radar system in 0.18 μm CMOS process. Design one low power consumption LNA and two low power consumption active quasi-circulator at 24 GHz. The power consumption of LNA is reduce by use body bias technique. This LNA chip achieves a peak gain of 15.8 dB and a noise figure of 3.2 dB at 24 GHz. The supply voltage and supply current are 0.7 V and 3.8 mA, respectively. The input and output return loss are lower than −10 dB. The input third-order intercept po

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Kostadinova, Iva S. "An Uhf Frequency-Modulated Continuous Wave Wind Profiler - Development and Initial Results." 2009. https://scholarworks.umass.edu/theses/341.

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The following work represents the research attempt of Dr. Frasier's group to develop a FMCW wind profiler for atmospheric boundary layer studies. The hardware development and integration are described in detail.

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Tsai, Yi-Che, and 蔡宜哲. "A Frequency-Modulated Continuous Wave Phased Array Marine Radar System Based on Smart Antenna Technology." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/87047225189958244980.

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博士<br>國立交通大學<br>電信工程研究所<br>104<br>This dissertation presents the development, fabrication, and measurement of an X-band marine phased-array frequency-modulated continuous-wave (FMCW) radar system based on the smart antenna technology. The proposed FMCW radar system incorporating the electrically beam-forming technique is presented in this dissertation. Such a system is composed of eight subarray antennas arranged linearly in the transmitter chain, each of which consists of ten 1-D series-fed patch array antennas with half-wavelength separation period generating a directionally narrow pattern a

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Chen, Bo-Cheng, and 陳柏丞. "Development of 24-GHz Frequency-Modulated Continuous-Wave Radar Modules for One-Dimensional Human Positioning." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/uj433w.

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Yen, Zong-hen, and 葉宗翰. "Development of the Software Algorithms to Design the Range-Finding System based on Linear Frequency-Modulated Continuous-Wave Radar." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/86815214041644748493.

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碩士<br>國立中央大學<br>通訊工程學系在職專班<br>101<br>Linear Frequency-modulated Continuous-wave (LFMCW) Radar has been widely applied in recent years for its advantages of low Probability of Interception, high range resolution, no blind range, and its simple structure. On the basis of the preliminary development of a height sensor Radar model designed by one research team, this paper aims to construct a method of using software algorithms to resolve the beat frequency signal from the relative altitude of the reflected target wave, and further, to implement the design of the range-finding system. Firstly,

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Chang, Chi-Ho, and 張繼禾. "Frequency-Modulated Continuous-Wave Sensor Design and System Integration." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/62627073294974426425.

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博士<br>國立交通大學<br>電信工程系所<br>98<br>The paper presents an X-band CMOS-based frequency-modulation continuous-wave (FMCW) sensor system for the transportation management. The proposed sensor system adopts two antennas to transmit and receive signal separately. The completed radio frequency (RF) transceiver is realized by using standard 0.18 �慆 one-poly six-metal (1P6M) complementary metal–oxide semiconductor (CMOS) technology with a chip area of 1.68 mm �e 1.6 mm. The so-called synthetic quasi-TEM complementary conducting-strip transmission line (CCS-TL) is also employed throughout the entire RF chi

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Chen, Yu-Hsiang, and 陳宇翔. "Angle of Arrival Estimation of One Frequency Modulated Continuous-Wave Signal Using Three Channel Interferometer." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/qqe843.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>106<br>In the thesis, we develop a three channel interferometer Anaogle of Arrival (AOA) estimatior fot Frequency Modulated Continuous-Wave (FMCW) signal. First, we use a low complexity short-time Fourier transform time-frequency analysis , to detect the parameters of FMCW signal. Then we use the three channel interferometer to perform AOA estimation. We use a simulated FMCW signal generated by MATLAB software to verify the performance of the AOA estimatior, and discuss the AOA estimation error caused by the modulation factor. Additionally, we implement a three chann

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Anderson, Michael Glen 1979. "Design of multiple frequency continuous wave radar hardware and micro-Doppler based detection and classification algorithms." Thesis, 2008. http://hdl.handle.net/2152/4000.

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Micro-Doppler is defined as scattering produced by non-rigid-body motion. This dissertation involves the design of a multiple frequency continuous wave (MFCW) radar for micro-Doppler research and detection and classification algorithm design. First, sensor hardware is developed and tested. Various design tradeoffs are considered, with the application of micro-Doppler based detection and classification in mind. A diverse database of MFCW radar micro-Doppler signatures was collected for this dissertation. The micro-Doppler signature database includes experimental data from human, vehicle, an

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Wu, Tsung-Lin, and 吳宗霖. "Digital Signal Processing of Multiband Frequency Modulation Continuous Wave Active Electronic Scanning Array Radar." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/4q567u.

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碩士<br>國立中興大學<br>電機工程學系所<br>106<br>In recent years, the measurement of distance and orientation of objects gradually draws people’s attentions. Radar will not be affected by weather or light, thereby influencing the accuracy. Therefore, radar is often used in our daily lives. The frequency modulated continuous wave (FMCW) radar can measure distances but it usually can’t obtain the directions of objects. Therefore, we utilized the concept of array antennas and single-band modulation technique to make it possible to detect multiple directions simultaneously. In this thesis, eight antennas are ali

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Tabatabaei, Nima. "Development of Frequency and Phase Modulated Thermal-wave Methodologies for Materials Non-destructive Evaluation and Thermophotonic Imaging of Turbid Media." Thesis, 2012. http://hdl.handle.net/1807/32820.

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In frequency-domain photothermal radiometry (FD-PTR) a low-power intensity-modulated optical excitation generates thermal-wave field inside the sample and the subsequent infrared radiation from the sample is analyzed to detect material’s inhomogeneities. The non-contact nature of FD-PTR makes it very suitable for non-destructive evaluation of broad range of materials. Moreover, the methodology is based on intrinsic contrast of light absorption which can be used as a diagnostic tool for inspection of malignancy in biological tissues. Nevertheless, the bottom line is that the physics of heat dif

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Chiu, Shang-Chuan, and 邱上權. "The Microstrip Antenna for 76~81 GHz Frequency Modulation Continuous Wave Automotive Multiple-Input Multiple-Output Array Radar." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/vv9344.

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碩士<br>國立交通大學<br>電信工程研究所<br>107<br>In this thesis, we design a planar printed microstrip antenna operating in frequency band of 76GHz to 81GHz for frequency modulated continuous wave (FMCW) multiple-input multiple-output (MIMO) array radar. The goal of this thesis is to design a radiation pattern with a narrow beam in the vertical plane, a wide beam in the horizontal plane and being stable in 76GHz to 81GHz, which keeps the back-end FMCW radar system to calculate distances and angles precisely. The antenna array is composed of 4 rows of antenna sub-arrays, and each row of sub-arrays is composed

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Monteiro, Gonçalo André Rodrigues. "Geração de sinais FM para LIDAR por modulação direta de Lasers Semicondutores." Master's thesis, 2020. http://hdl.handle.net/10316/93919.

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Dissertação de Mestrado Integrado em Engenharia Electrotécnica e de Computadores apresentada à Faculdade de Ciências e Tecnologia<br>Com a evolução da tecnologia nos últimos anos, existiu a necessidade de simplificar algumas tarefas no nosso quotidiano. A Indústria automóvel foi uma das áreas onde mais se relevou esta evolução, pois pretendeu levar a condução para outro nível, ou seja, criar um veículo autónomo, em que este fosse totalmente independente da ação do ser humano.Para isto ser possível foi necessário criar um sistema que conseguisse detetar todos os obstáculos do meio envolvente, t

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Lin, Yi-Fan, and 林以凡. "Antenna Distance Analysis and Design for Wider Angle Detection for Mono-pulse Continuous Wave Doppler Radar and Characterization of High Frequency Transmission Line On Flexible Substrate." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/28046973032985397508.

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碩士<br>國立臺灣大學<br>電信工程學研究所<br>102<br>Two antenna layouts are realized in two different kinds of fabrication process which are LTCC (low temperature co-fired ceramics) and PCB (printed circuit board) in a limited area for monopulse radar system that includes one transceiving and two receiving antennas. The radar system uses Doppler effect to determine the speed of the target and the monopulse ratio which is determined by radiation modes of sum and difference pattern to detect the angle of the target. Due to limited area, two receiving antennas are forced to place in the distance smaller than a wa

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Kamann, Alexander. "Radar-based Environment Perception for Pre-Crash Safety Systems." 2020. https://monarch.qucosa.de/id/qucosa%3A73108.

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In this thesis, methods for radar-based environment perception from the vehicle safety point of view are presented. The proposed methods comprise advanced topics of radar-based target detection and tracking in dynamic pre-crash scenarios, as well as ghost object identification. The problem of a wandering dominant scatter point on the target surface and corresponding challenge for accurate target tracking in low-range configurations is considered. The proposed method presents a procedure to estimate target wheel positions and corresponding bulk velocities to serve as fixed scatter points on th

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