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Termes IGN > sciences naturelles > physique > optique > optique physique > radiométrie > rayonnement électromagnétique > onde électromagnétique > forme d'onde
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Fundamentals of radar signal processing / M. Richards (2005)
Titre : Fundamentals of radar signal processing Type de document : Monographie Auteurs : M. Richards, Auteur Editeur : Boston, New York, ... : McGraw-Hill Année de publication : 2005 Collection : Electronic Engineering Importance : 513 p. Format : 19 x 24 cm ISBN/ISSN/EAN : 978-0-07-144474-3 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] correction du signal
[Termes IGN] échantillonnage de signal
[Termes IGN] écho radar
[Termes IGN] effet Doppler
[Termes IGN] filtrage linéaire
[Termes IGN] forme d'onde
[Termes IGN] image radar moirée
[Termes IGN] interféromètrie par radar à antenne synthétique
[Termes IGN] radar à antenne synthétique
[Termes IGN] radargrammétrie
[Termes IGN] rapport signal sur bruit
[Termes IGN] seuillage
[Termes IGN] télédétection en hyperfréquence
[Termes IGN] traitement du signal
[Termes IGN] transformation de FourierIndex. décimale : 35.22 Télédétection en hyperfréquence - Traitement d'image radar Résumé : (Editeur) [...] This rigorous text provides detailed coverage of radar digital signal processing (DSP) fundamentals and applications not to be found elseewhere in the literature. [...] It provides clear modern instruction in radar DSP basics and the skills needed in both design and analysis of common radar algorithms. This text is ideal for those looking to go beyond the cursory treatment of signal processing in general radar systems books to seeek more detailed tratments of signal models, waveforms, interference reduction and detection, as well as to gain the foundation needed for specialty texts that focus on advanced radar signal processing topics such as SAR and STAP (Space- Time Adaptive Processing). Note de contenu : Chapter 1 : Introduction to Radar Systems
Chapter 2 : Signal Models
Chapter 3 : Sampling and Quantization of Pulsed Radar Signals
Chapter 4 : Radar Waveforms
Chapter 5 : Doppler Processing
Chapter 6 : Detection Fundamentals
Chapter 7 : Constant False Alarm Rate (CFAR) Detection
Chapter 8 : Introduction to Synthetic Aperture Radar
Chapter 9 : Introduction to Adaptive Beamforming and Space-Time Adaptive ProcessingNuméro de notice : 20107 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Monographie Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=62916 Initial analysis and visualization of waveform laser scanner data / Johanna Töpel (2005)
Titre : Initial analysis and visualization of waveform laser scanner data Type de document : Mémoire Auteurs : Johanna Töpel, Auteur Editeur : Linköping [Suède] : Linköping Institute of Technology Année de publication : 2005 Importance : 63 p. Format : 21 x 30 cm Note générale : bibliographie
Master’s Thesis in Automatic ControlLangues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie
[Termes IGN] algorithme espérance-maximisation
[Termes IGN] canopée
[Termes IGN] classification orientée objet
[Termes IGN] données lidar
[Termes IGN] données localisées 3D
[Termes IGN] faisceau laser
[Termes IGN] forêt
[Termes IGN] forme d'onde
[Termes IGN] forme d'onde pleine
[Termes IGN] impulsion laser
[Termes IGN] semis de points
[Termes IGN] signal laser
[Termes IGN] visualisation 3DRésumé : (auteur) Conventional airborne laser scanner systems output the three-dimensional coordinates of the surface location hit by the laser pulse. Data storage capacity and processing speeds available today has made it possible to digitally sample and store the entire reflected waveform, instead of only extracting the coordinates. Research has shown that return waveforms can give even more detailed insights into the vertical structure of surface objects, surface slope, roughness and reflectivity than the conventional systems. One of the most important advantages with registering the waveforms is that it gives the user the possibility to himself define the way range is calculated in post-processing. In this thesis different techniques have been tested to visualize a waveform data set in order to get a better understanding of the waveforms and how they can be used to improve methods for classification of ground objects. A pulse detection algorithm, using the EM algorithm, has been implemented and tested. The algorithm output position and width of the echo pulses. One of the results of this thesis is that echo pulses reflected by vegetation tend to be wider than those reflected by for example a road. Another result is that up till five echo pulses can be detected compared to two echo pulses that the conventional system detects. Note de contenu : Introduction
1- Registred waveform
2- Lidar data
3- Documentation of waveforms
4- Vizualisation
5- Pulse detection
6- Extracted points
7- DiscussionNuméro de notice : 21710 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Mémoire masters divers Organisme de stage : Swedish Defence Research Agency FOI Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=90997