Time Delay Estimation of UWB Radar Signals Backscattered from a Wall

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F11%3A00179231" target="_blank" >RIV/68407700:21230/11:00179231 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1002/mop.25985" target="_blank" >http://dx.doi.org/10.1002/mop.25985</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/mop.25985" target="_blank" >10.1002/mop.25985</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Time Delay Estimation of UWB Radar Signals Backscattered from a Wall

Popis výsledku v původním jazyce

Estimating the basic characteristics of a wall is especially important in the field of through-wall radar imaging. In this article, we focus on the time delay estimation of signals measured by an ultra-wideband short-pulse radar. We describe the essential signal preprocessing steps, which are applied before a subspace superresolution method is used to estimate the time delays of overlapping pulses backscattered from the wall. The signal correlation matrix is estimated using only one snapshot of the measured data, and the algorithm can operate in real time. In addition, to resolve closely spaced correlated echoes, we apply an improved spatial smoothing method. The performance of our algorithm is verified by simulations, and we also present the measurement results for two real brick walls.

Název v anglickém jazyce

Time Delay Estimation of UWB Radar Signals Backscattered from a Wall

Popis výsledku anglicky

Estimating the basic characteristics of a wall is especially important in the field of through-wall radar imaging. In this article, we focus on the time delay estimation of signals measured by an ultra-wideband short-pulse radar. We describe the essential signal preprocessing steps, which are applied before a subspace superresolution method is used to estimate the time delays of overlapping pulses backscattered from the wall. The signal correlation matrix is estimated using only one snapshot of the measured data, and the algorithm can operate in real time. In addition, to resolve closely spaced correlated echoes, we apply an improved spatial smoothing method. The performance of our algorithm is verified by simulations, and we also present the measurement results for two real brick walls.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

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Projekt

<a href="/cs/project/GD102%2F08%2FH018" target="_blank" >GD102/08/H018: Modelování a simulace polí</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Microwave and Optical Technology Letters

ISSN

0895-2477

e-ISSN

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Svazek periodika

53

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

1444-1450

Kód UT WoS článku

000288861100065

EID výsledku v databázi Scopus

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