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Tesi sul tema "NLOS"

Autore: Grafiati
Pubblicato: 4 giugno 2021
Ultima modifica: 25 luglio 2025

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1

Ko, Edwin Hoi-Kit. "NLOS mobile location determination in CDMA cellular systems." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0001/MQ45990.pdf.

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2

Al-Jazzar, Saleh. "Algorithms and Parameter Estimation for Radiolocation in NLOS Environments." University of Cincinnati / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1084913001.

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3

Tau, Sieskul Bamrung [Verfasser]. "NLoS Localization and UWB Channel Capacity Analysis / Bamrung Tau Sieskul." Aachen : Shaker, 2010. http://d-nb.info/1080766995/34.

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4

Kbayer, Nabil. "Advanced Signal Processing Methods for GNSS Positioning with NLOS/Multipath Signals." Thesis, Toulouse, ISAE, 2018. http://www.theses.fr/2018ESAE0017/document.

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Les avancées récentes dans le domaine de navigation par satellites (GNSS) ontconduit à une prolifération des applications de géolocalisation dans les milieux urbains. Pourde tels environnements, les applications GNSS souffrent d’une grande dégradation liée à laréception des signaux satellitaires en lignes indirectes (NLOS) et en multitrajets (MP). Cetravail de thèse propose une méthodologie originale pour l’utilisation constructive des signauxdégradés MP/NLOS, en appliquant des techniques avancées de traitement du signal ou àl’aide d’une assistance d’un simulateur 3D de propagation des signaux
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5

Dammes, Timo [Verfasser]. "Probabilistic Range Estimation for Wireless Indoor Localization in NLOS Scenarios / Timo Dammes." Aachen : Shaker, 2015. http://d-nb.info/1069050407/34.

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6

Li, Hao. "New mobile positioning techniques for LOS/NLOS environments and investigation of topology influence." Thesis, University of Birmingham, 2015. http://etheses.bham.ac.uk//id/eprint/6007/.

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The advent of wireless location technology and the increase in location-based services, has meant the need to investigate efficient network-based location methods becoming of paramount importance. Therefore, the interest in wireless positioning techniques has been increasing over recent decades. Among mobile positioning techniques, the Time of Arrival (TOA) and Time Difference of Arrival (TDOA) look promising. For the purpose of dealing with such technologies, some classic algorithms such as least square, most likelihood and Taylor method have been used to solve the estimation, which distingui
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7

Lyu, Pengfei. "Numerical and Experimental Indoor Channel Analysis for LOS-NLOS Identification at 60 GHz." Electronic Thesis or Diss., Sorbonne université, 2020. http://www.theses.fr/2020SORUS186.

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Avec l’émergence des objets connectés, les applications potentielles requérant la localisation indoor ou la continuité de localisation réapparaissent et suscitent, depuis quelques années déjà, de nombreuses études et recherches. La norme IEEE 802.11ad, opérant autour de 60 GHz, est un candidat potentiel pour résoudre le problème de localisation tout en permettant une communication très haut débit. Cette norme prometteuse pose toutefois un problème lié au caractère directionnel de la propagation, particulièrement sujette au blocage des ondes directes. En effet aucun calcul de coordonnées spatia
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8

Li, Binghao Surveying &amp Spatial Information Systems Faculty of Engineering UNSW. "Terrestial mobile user positioning using TDOA and fingerprinting techniques." Awarded by:University of New South Wales. School of Surveying and Spatial Information Systems, 2006. http://handle.unsw.edu.au/1959.4/25507.

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Specialists are expecting the knowledge of location will trigger yet another revolution in mobile services. Location-base services (LBS) have attracted many researchers and enterprises and one of the key aspects of LBS is positioning technology. Considering a wider and more complex field - ubiquitous computing, location is the fundamental element. This work focuses on some aspects of the new techniques of terrestrial positioning systems. Wireless LAN is one of the most popular systems used for positioning for indoor environments and public places. We have investigated the trilateration and fi
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9

Venkatraman, Saipradeep. "Wireless Location in Non-Line-of-Sight Environments." University of Cincinnati / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1085685908.

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10

Olayanju, Iyeyinka Damilola, and Olabode Paul Ojelabi. "Using Multilateration and Extended Kalman Filter for Localization of RFID Passive Tag in NLOS." Thesis, Blekinge Tekniska Högskola, Sektionen för ingenjörsvetenskap, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-1119.

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Abstract (sommario):
The use of ubiquitous network has made real time tracking of objects, animals and human beings easy through the use of radio frequency identification system (RFID). Localization techniques in RFID rely on accurate estimation of the read range between the reader and the tags. The tags consist of a small chip and a printed antenna which receives from and transmits information to the reader. The range information about the distance between the tag and the reader is obtained from the received signal strength indication (RSSI). Accuracy of the read range using RSSI can be very complicated especiall
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11

McCoy, Edward D. "Employment and command and control for the Non-Line-of-Sight (NLOS) missile system." Thesis, Monterey, California : Naval Postgraduate School, 1990. http://edocs.nps.edu/npspubs/scholarly/theses/2009/Jun/09Jun%5FNAME.pdf.

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Thesis (M.S. in Systems Technology (Command Control and Communications))--Naval Postgraduate School, June 1990.<br>Thesis Advisor(s): Caldwell, William J. "June 1990." Description based on title screen as viewed on October 16, 2009. Author(s) subject terms: NLOS Weapon System Description, NLOS Organization and Employment, NLOS Command and Control, NLOS Command and Control Testing. Includes bibliographical references (p. 63).
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12

Emis, Jonathon, Bryan Huang, Timothy Jones, Mei Li, and Don Tumbocon. "Integrating the Non-Line of Sight Launching System (NLOS-LS) in the United States Navy." Thesis, Monterey, California. Naval Postgraduate School, 2007. http://hdl.handle.net/10945/6929.

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The global war on terror emphasizes the need for a weapon system that can improve the self-defense capability of the U.S Navy ship against small surface craft threats. This MSSE Capstone Project investigated the feasibility of integrating the Non-Line of Sight Launching System (NLOS-LS) onto U.S. Navy ships. In particular, the focus of the project was on the DDG-51 class ships. The NLOS-LS was originally designed to provide support to Army ground forces against over the horizon threats. The U.S. Navy recognizes the prospect of this weapon in an at-sea environment. The capability of the s
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13

Maceraudi, Jimmy. "Algorithmes de radiolocalisation et traitements adaptés à une architecture de récepteur IR-UWB intégrée." Thesis, Rennes 1, 2017. http://www.theses.fr/2017REN1S106/document.

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En autorisant de nouveaux services centrés sur l'utilisateur (navigation indoor contextuelle, surveillance/inventaire de biens personnels, etc.), les nouvelles fonctions de radiolocalisation sont en passe de modifier en profondeur les usages liés à la mobilité. Dans ce contexte, la technologie radio ultra large bande impulsionnelle (IR-UWB), qui permet en théorie d'apprécier le temps de vol des impulsions transmises à l'échelle de la nanoseconde et donc, la distance séparant l'émetteur du récepteur avec une précision de l'ordre de quelques dizaines de centimètres seulement, a été régulièrement
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14

Yin, Feng, Carsten Fritsche, Fredrik Gustafsson, and Abdelhak M. Zoubir. "TOA-Based Robust Wireless Geolocation and Cramér-Rao Lower Bound Analysis in Harsh LOS/NLOS Environments." Linköpings universitet, Reglerteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-92694.

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We consider time-of-arrival based robust geolocation in harsh line-of-sight/non-line-of-sight environments. Herein, we assume the probability density function (PDF) of the measurement error to be completely unknown and develop an iterative algorithm for robust position estimation. The iterative algorithm alternates between a PDF estimation step, which approximates the exact measurement error PDF (albeit unknown) under the current parameter estimate via adaptive kernel density estimation, and a parameter estimation step, which resolves a position estimate from the approximate log-likelihood fun
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15

Mokadem, Azza. "Analysis of scattering by urban areas in the frame of NLOS target detection in SAR images." Thesis, Supélec, 2014. http://www.theses.fr/2014SUPL0004/document.

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Les systèmes radar à synthèse d’ouverture (RSO) sont utilisés depuis de nombreuses années pour des applications militaires telles que la détection des cibles cachées. L’amélioration constante de la résolution de ces capteurs permet aujourd’hui d’accéder à un niveau de détail élevé dans la scène imagée. Cependant, l’interprétation de ces images demeure particulièrement compliquée dans le cas des milieux urbains. En effet, ces milieux particuliers sont sièges de nombreux phénomènes physiques et d’interactions multiples qui rendent la tâche de détection difficile et parfois erronée. C’est dans ce
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16

Nehete, Viraj Dileep. "Experimental evaluation of 2 x 2 MIMO in LOS and NLOS channels using NI USRP-2953R." Thesis, Queensland University of Technology, 2016. https://eprints.qut.edu.au/100019/1/Viraj%20Dileep_Nehete_Thesis.pdf.

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This research study investigates the performance of multiple antenna system with space-time block coding on a software defined radio platform. The method is based on the measurement of average bit error rate at different antenna spacing in line-of-sight and non-line-of-sight wireless channel conditions. Theoretical analysis and measurements results conclude that optimal antenna array spacing at the receiver side can significantly improve the performance of the wireless link.
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17

Reza, Rahman Iftekhar. "Data Fusion For Improved TOA/TDOA Position Determination in Wireless Systems." Thesis, Virginia Tech, 2000. http://hdl.handle.net/10919/34723.

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Abstract (sommario):
The Federal Communications Commission (FCC) that regulates all wireless communication service providers has issued modified regulations that all service providers must select a method for providing position location (PL) information of a user, requesting for E-911 service, by October 2000. The wireless 911 rules adopted by the FCC are aimed both for improving the reliability of the wireless 911 services and for providing the enhanced features generally available for wireline calls. From the service providers' perspective, effective position location technologies must be utilized to meet the FC
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18

Miao, H. (Honglei). "Channel estimation and positioning for multiple antenna systems." Doctoral thesis, University of Oulu, 2007. http://urn.fi/urn:isbn:9789514284113.

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Abstract The multiple–input multiple–output (MIMO) technique, applying several transmit and receive antennas in wireless communications, has emerged as one of the most prominent technical breakthroughs of the last decade. Wideband MIMO parameter estimation and its applications to the MIMO orthogonal frequency division multiplexing (MIMO–OFDM) channel estimation and mobile positioning are studied in this thesis. Two practical MIMO channel models, i.e., correlated-receive independent-transmit channel and correlated-transmit-receive channel, and associated space-time parameter estimation algorit
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19

Jia, Tao. "Collaborative Position Location for Wireless Networks in Harsh Environments." Diss., Virginia Tech, 2010. http://hdl.handle.net/10919/26548.

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Abstract (sommario):
Position location has become one of the more important tasks for improving communication and networking performance for future commercial wireless systems. It is also the enabling technology for many control and sensing applications envisioned by the wireless sensor networks (WSN). Despite its meaningfulness and many algorithms being developed in the past several years, position location in harsh propagation environments remains to be a challenging issue, due mainly to the lack of sufficient infrastructure support and the prominent phenomenon of non-line-of-sight (NLOS) signal propagation. Re
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20

Handeme, Nguema Igondjo My Mirabelle. "Étude théorique et expérimentale du comportement de la technologie RFID dans la gamme de fréquences UHF-SHF en environnement semi-confiné : application au cas des véhicules de transport terrestres." Thesis, Lille 1, 2015. http://www.theses.fr/2015LIL10087/document.

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La RFID (Radio Frequency IDentification) est une technologie qui permet la communication entre un tag et un lecteur par ondes radios. Un tag est dit passif lorsqu’il utilise l’onde fournie par le lecteur pour transmettre une information à celui-ci. Cette technologie couvre aujourd’hui tous les domaines de l’industrie. D’après les statistiques, 13% des applications industrielles utilisant cette technologie sont liées au domaine du transport. Dans notre cas, l’objectif a été d’étudier théoriquement et expérimentalement le comportement des tags UHF RFID passifs dans les véhicules de transport ter
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21

Bargshady, Nader. "Precise Tracking of Things via Hybrid 3-D Fingerprint Database and Kernel Method Particle Filter." Digital WPI, 2017. https://digitalcommons.wpi.edu/etd-dissertations/361.

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"Precise Tracking of Things (PToT) using RF signals has posed a serious challenge in an indoor environment. The precision localization information is an enabler for better coordinated-tasks and is essential for a successful launch of many emerging applications. PToT relies on two principal components, a novel navigation (tracking) algorithm, and a hybrid 3D fingerprint database. In this dissertation, we begin by using the two widely known ranging techniques, Time Of Arrival (TOA) associated with Ultra-wideband (UWB) and Received Signal Strength (RSS) with WiFi signals. First, we use the theore
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22

Miniuk, Mary. "Channel Impulse Response and Its Relationship to Bit Error Rate at 28 GHz." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/31002.

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Over the years, the Internet has become increasingly popular and people's dependence on it has increased dramatically. Whether it be to communicate to someone across the world, find blueprints, or check sports scores, the Internet has become a necessary resource for everyone. In emergency situations, this need increases further. After the terrorist attacks on the Pentagon, it took several days to restore communications. This is not an acceptable time frame when people's lives are at stake. Virginia Tech's Center for Wireless Telecommunication has developed a prototype of a rapidly deploya
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23

Thai, Khac Phuc Hung. "Radar "Around the corner" : détection et localisation de cibles masquées en milieu urbain." Thesis, Ecole nationale supérieure Mines-Télécom Atlantique Bretagne Pays de la Loire, 2018. http://www.theses.fr/2018IMTA0102/document.

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Les applications des techniques radar au milieu urbain constituent un domaine émergent. Une des difficultés principales est liée à la complexité du milieu de propagation induit par les bâtiments présents dans la scène. En effet, la présence de ces bâtiments génère d’une part des zones d’ombre à l’intérieur desquelles une cible n’est pas en visibilité directe, et d’autre part de nombreux multi-trajets produits par les possibles réflexions et diffractions sur les surfaces environnantes. Ces multi-trajets sont souvent vus comme une gêne, limitant les capacités de détection en radar. Or ils peuven
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24

Olofsson, Ivar. "Enhancements in LTE OTDOA Positioning for Multipath Environments." Thesis, Linköpings universitet, Kommunikationssystem, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-131821.

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By using existing radio network infrastructure, a user can be positioned even where GPS and other positioning technologies lack coverage. The LTE Positioning Protocol (LPP) supports user Reference Signal Time Difference (RSTD) reports based on the Time of Arrival (TOA) for a Positioning Reference Signal (PRS). In the current reporting format, only one RSTD for each base station is considered, but for indoor environments this is easily biased due to fading and multipath issues, resulting in a Non-Line of Sight (NLOS) bias. With a rich User Equipment (UE) feedback that can represent the multipat
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25

Manan, Waqas. "Propagation channel models for 5G mobile networks. Simulation and measurements of 5G propagation channel models for indoor and outdoor environments covering both LOS and NLOS Scenarios." Thesis, University of Bradford, 2018. http://hdl.handle.net/10454/17219.

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At present, the current 4G systems provide a universal platform for broadband mobile services; however, mobile traffic is still growing at an unprecedented rate and the need for more sophisticated broadband services is pushing the limits on current standards to provide even tighter integration between wireless technologies and higher speeds. This has led to the need for a new generation of mobile communications: the so-called 5G. Although 5G systems are not expected to penetrate the market until 2020, the evolution towards 5G is widely accepted to be the logical convergence of internet service
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26

Bartelmaos, Steve. "Poursuite des sous-espaces et localisation des mobiles en UMTS." Paris 6, 2008. http://www.theses.fr/2008PA066010.

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Mes travaux de recherche se déclinent suivant deux directions : Techniques avancées du traitement du signal pour la localisation de sources. Application à la localisation et poursuite de mobile en UMTS. Méthodes rapides et stables pour la poursuite des sous-espaces. Techniques avancées du traitement du signal pour la localisation de sources : Application à la localisation et poursuite de mobile en UMTS. Depuis que la FCC (Federal Communications Commission) a demandé aux opérateurs américains d'assurer la localisation de tout terminal appelant les services d'urgence (avec une précision de 125 m
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27

Awarkeh, Nour. "2D indoor localization system with an UWB multistatic radar." Electronic Thesis or Diss., Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLT041.

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De nos jours, la capacité de suivre des objets et des personnes est cruciale pour un grand nombre d’applications, telles que les applications médicales (surveillance de patients) ou les applications indépendantes qui nécessitent une très grande précision et résolution dans le processus de positionnement. Par conséquent, l’objectif scientifique principal de cette thèse est de développer un système de suivi utilisant un système de radar multistatique UWB pour fournir une localisation 2D en temps réel de transpondeurs ou de balises actives. La localisation est réalisée en coordonnées polaires (di
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28

Grosick, Emmanuele. "Techniques avancées de traitement d'antennes pour la localisation de sources : application à la localisation de mobile : cas du système UMTS." Paris, ENST, 2003. http://www.theses.fr/2003ENST0045.

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La thèse a porté sur la localisation de mobile pour les systèmes UMTS-FDD. Il s'agit d'un sujet qui intéresse de plus en plus les opérateurs, notamment dans le cas de système UMTS-FDD où il existe très peu de réseaux réels. Les différentes approches permettant de localiser un émetteur ont ainsi été envisagées, et plus particulièrement, celles basées sur les mesures de puissances, celles basées sur les temps d'arrivée (TOA) en liaison descendante ou encore celles basées sur les angles d'arrivée (AOA) et sur toute combinaison AOA-TOA. Pour ces différentes approches, nous nous sommes intéressés a
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29

Nanni, Lorenzo. "Un metodo di misura di canale radio “Air-to-Ground”." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/19377/.

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In questa tesi si è deciso di focalizzarsi sui segnali a onde millimetriche e banda-ultra larga (UWB), i quali rappresentano, con ogni probabilità, i componenti fondamentali delle future reti di 5° generazione(5G). Sono state eseguite delle misure per poter analizzare il comportamento di questi segnali in ambienti diversi utilizzando un drone. Lo scopo del mio elaborato consiste nella sincronizzazione delle missioni del drone con le operazioni di acquisizione degli strumenti di misura. Per poter realizzare il sistema di sincronizzazione è stato utilizzato il software di elaborazione di c
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30

RamaSarma, Vaidyanathan. "A Coverage Area Estimation Model for Interference-Limited Non-Line-of-Sight Point-to-Multipoint Fixed Broadband Wireless Communication Systems." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/35276.

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Abstract (sommario):
First-generation, line-of-sight (LOS) fixed broadband wireless access techniques have been around for several years. However, services based on this technology have been limited in scope to service areas where transceivers can communicate with their base stations, unimpeded by trees, buildings and other obstructions. This limitation has serious consequences in that the system can deliver only 50% to 70% coverage within a given cell radius, thus affecting earned revenue. Next generation broadband fixed wireless access techniques are aimed at achieving a coverage area greater than 90%. To achiev
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31

O'Lone, Christopher Edward. "Statistical Analysis of Geolocation Fundamentals Using Stochastic Geometry." Diss., Virginia Tech, 2021. http://hdl.handle.net/10919/102027.

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Abstract (sommario):
The past two decades have seen a surge in the number of applications requiring precise positioning data. Modern cellular networks offer many services based on the user's location, such as emergency services (e.g., E911), and emerging wireless sensor networks are being used in applications spanning environmental monitoring, precision agriculture, warehouse and manufacturing logistics, and traffic monitoring, just to name a few. In these sensor networks in particular, obtaining precise positioning data of the sensors gives vital context to the measurements being reported. While the Global Pos
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32

Obst, Marcus. "Bayesian Approach for Reliable GNSS-based Vehicle Localization in Urban Areas." Doctoral thesis, Universitätsbibliothek Chemnitz, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-162894.

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Abstract (sommario):
Nowadays, satellite-based localization is a well-established technical solution to support several navigation tasks in daily life. Besides the application inside of portable devices, satellite-based positioning is used for in-vehicle navigation systems as well. Moreover, due to its global coverage and the availability of inexpensive receiver hardware it is an appealing technology for numerous applications in the area of Intelligent Transportation Systems (ITSs). However, it has to be admitted that most of the aforementioned examples either rely on modest accuracy requirements or are not sensit
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33

Malmström, Magnus. "5G Positioning using Machine Learning." Thesis, Linköpings universitet, Reglerteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-149055.

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Abstract (sommario):
Positioning is recognized as an important feature of fifth generation (\abbrFiveG) cellular networks due to the massive number of commercial use cases that would benefit from access to position information. Radio based positioning has always been a challenging task in urban canyons where buildings block and reflect the radio signal, causing multipath propagation and non-line-of-sight (NLOS) signal conditions. One approach to handle NLOS is to use data-driven methods such as machine learning algorithms on beam-based data, where a training data set with positioned measurements are used to train
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34

Heidari, Mohammad. "Identification and modeling of the dynamic behavior of the direct path component in ToA-based indoor localization systems." Worcester, Mass. : Worcester Polytechnic Institute, 2008. http://www.wpi.edu/Pubs/ETD/Available/etd-071508-195549/.

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Abstract (sommario):
Dissertation (Ph.D.)--Worcester Polytechnic Institute.<br>Keywords: Ray Tracing; Wideband Measurement; Dynamic Modeling of Ranging Error; ToA-Based Indoor Localization; NLoS Identification. Includes bibliographical references (leaves 147-159).
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35

Kuhn, Eduardo Vinicius. "Modelagem estocástica do algoritmo NLMS." Florianópolis, SC, 2012. http://repositorio.ufsc.br/xmlui/handle/123456789/99376.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Elétrica.<br>Made available in DSpace on 2013-03-04T19:47:54Z (GMT). No. of bitstreams: 1 313758.pdf: 2236026 bytes, checksum: b96b29cf2037d52a2d1bf72f2088b483 (MD5)<br>Este trabalho de pesquisa trata da modelagem estocástica de algoritmos adaptativos com sinal de entrada normalizado. Particularmente, visa se obter um modelo estocástico mais preciso para o algoritmo NLMS (normalized least-mean-square) do que os até então disponíveis na literatura. O modelo aqui proposto
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36

Roy, Tamoghna. "BER Modeling for Interference Canceling Adaptive NLMS Equalizer." Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/78055.

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Adaptive LMS equalizers are widely used in digital communication systems for their simplicity in implementation. Conventional adaptive filtering theory suggests the upper bound of the performance of such equalizer is determined by the performance of a Wiener filter of the same structure. However, in the presence of a narrowband interferer the performance of the LMS equalizer is better than that of its Wiener counterpart. This phenomenon, termed a non-Wiener effect, has been observed before and substantial work has been done in explaining the underlying reasons. In this work, we focus on the Bi
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37

Archibald, Jennifer. "An automated NLO framework in Sherpa." Thesis, Durham University, 2011. http://etheses.dur.ac.uk/3286/.

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There has recently been a strong drive towards next-to-leading order (NLO) accuracy in Monte Carlo event generators. This thesis is concerned with the implementation of a framework for NLO calculations within the matrix element generator AMEGIC++, which forms part of the Monte Carlo event generator Sherpa. An interface is presented for the connection of one-loop matrix elements to Sherpa, conforming with the Binoth Les Houches Accord. Automated Catani-Seymour dipole subtraction is presented for the cases of QCD corrections for processes involving massive final state particles, and the supersym
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38

Simpkins, Simon M. E. "Bimetallic organoiron dipoles as NLO materials." Thesis, University of East Anglia, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.365015.

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39

Ndungu, Edward Nganga. "A stable pre-whitened NLMS algorithm for acoustic echo cancellation." Thesis, Loughborough University, 1997. https://dspace.lboro.ac.uk/2134/14117.

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This thesis is on a new method for improving the convergence speed of the normalised least mean square (NLMS) algorithm when the input is a coloured signal, such as speech, that can be decorrelated using linear prediction. The proposed method gives a significant improvement in the convergence speed and requires very little additional computation in terms of arithmetic operations and memory space. It is also very easy to implement. An important aspect of the proposed method is its inherent stability irrespective of the order of the prediction-error filter or the manner in which it is adapted. T
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40

Hegerhorst-Schultchen, Lisa Christine [Verfasser]. "Optimality conditions for abs-normal NLPs / Lisa Christine Hegerhorst-Schultchen." Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2020. http://d-nb.info/1212582330/34.

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41

Janowski, Ann M. "The protective roles of NLRs during infection and tumor progression." Diss., University of Iowa, 2016. https://ir.uiowa.edu/etd/5518.

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The immune system has evolved to fight off numerous pathogens. The first line of defense against these pathogens are innate immune cells. Innate immune cells ingest pathogens and a family of cytosolic proteins, NOD-like receptors (NLR) and AIM2-like receptors (ALRs), recognize conserved sequences on pathogens. Recognition of pathogens by NLRs and ALRs alerts the immune system to the presence of an invader and subsequent control of infection. NLRs and ALRs also recognize endogenous cell danger signals that are released during cell stress. Pathogens and tumor cells are capable of growing in a ho
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42

Song-Zhao, George Xiaoxi. "The role of NLRs in induction and resolution of intestinal inflammation." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:74c0e3a2-82ae-4311-8abe-21926835bc17.

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Innate immune activation is thought to play a central role in IBD pathogenesis because genetic polymorphisms in NOD2 and NLRP3, cytosolic innate immune receptors belonging to the NLR family, have been associated with IBD susceptibility. However, the mechanisms through which NLR mutations predispose to IBD remain unclear. The aim of this project was to dissect the functional roles of different NLRs in intestinal inflammation. Using the well-established DSS-induced colitis model as well as experimental models of IBD based on infection with Helicobacter hepaticus, we found that Nod2 expression wa
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43

Wichern, Jürgen. "Entwicklung Donor-Akzeptor substituierter Chromophore für die nichtlineare Optik." [S.l.] : [s.n.], 2000. http://deposit.ddb.de/cgi-bin/dokserv?idn=958920605.

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44

Hu, Quanyuan. "Synthesis, characterization and NLO properties of octupolar molecules /." View abstract or full-text, 2005. http://library.ust.hk/cgi/db/thesis.pl?CHEM%202005%20HU.

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45

Wong, Hans. "Mono- und bimetallische Sesquifulvalen-Komplexe als NLO-Chromophore." [S.l. : s.n.], 1998. http://www.sub.uni-hamburg.de/disse/19/inhalt.html.

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46

Peters, Gerhard. "Lichtkegelsummenregeln für die Formfaktoren des Nukleons in NLO." kostenfrei, 2008. http://www.opus-bayern.de/uni-regensburg/volltexte/2008/1011/.

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47

Dubard, Philippe. "Multi-rogue solutions to the focusing NLS equation." Phd thesis, Université de Bourgogne, 2010. http://tel.archives-ouvertes.fr/tel-00625446.

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The study of rogue waves is a booming topic mainly in oceanography but also in other fields. In this thesis I construct via Darboux transform a multi-parametric family of smooth quasi-rational solutions of the nonlinear Schödinger equation that present a behavior of rogue waves. For a general choice of parameters the second-order solutions give a model of "three sisters" (three higher than expected waves in a row) while for a particular choice of parameters we obtain the solutions given by Akhmediev et al. in a serie of articles in 2009. Then these solutions allow me to construct rational solu
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48

Ksianzou, Viachaslau. "Second-order nonlinear optical interactions and cascading effects in thinorganic films." Phd thesis, Universität Potsdam, 2010. http://opus.kobv.de/ubp/volltexte/2010/4918/.

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The presented work describes new concepts of fast switching elements based on principles of photonics. The waveguides working in visible and infra-red ranges are put in a basis of these elements. And as materials for manufacturing of waveguides the transparent polymers, dopped by molecules of the dyes possessing second order nonlinear-optical properties are proposed. The work shows how nonlinear-optical processes in such structures can be implemented by electro-optical and opto-optical control circuit signals. In this paper we consider the complete cycle of fabrication of several types of inte
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49

Tong, Meixuezi. "Identification and analysis of E3 ligases and helper NLRs in plant immunity." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/57683.

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Plant immunity is usually initiated with two types of immune receptors: 1) pattern recognition receptors (PRRs) recognize the conserved molecular features of pathogens (pathogen-associated molecular patterns, PAMPs) and trigger PTI (PAMP-triggered immunity) and; 2) nucleotide-binding/leucine-rich repeats (NLRs) serve as intracellular immune receptors with the ability to recognize the presence of relatively diverse pathogen effectors and trigger ETI (effector-triggered immunity). The Arabidopsis thaliana mutant snc1 contains a gain-of-function mutation in a Toll/interleukin-1 (TIR)-type NLR (TN
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50

Schwan, Christopher [Verfasser]. "Efficient algorithms for NLO QCD event generators / Christopher Schwan." Mainz : Universitätsbibliothek Mainz, 2014. http://d-nb.info/1064034306/34.

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