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Signal-to-noise ratio equalization for TOPSAR mode using a nonuniform steering rate

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10.1109/LGRS.2011.2162578
 
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hdl:2117/16079

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Ruiz Rodon, Josep
Broquetas Ibars, AntoniMés informacióMés informacióMés informació
González Arbesú, José MaríaMés informacióMés informacióMés informació
Closa Domínguez, Josep M.
Labriola, M
Document typeArticle
Defense date2011-09-15
Rights accessRestricted access - publisher's policy
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder
Abstract
In this letter, an optimized scanning in terrain observation by progressive scan synthetic aperture radar (TOPSAR) mode is studied. A nonuniform steering rate of the radar array antenna in the along-track direction is proposed in order to obtain constant radiometric sensitivity and signal-to-noise ratio. This is achieved owing to the longer integration time of the echoes received at both ends of the antenna azimuth sweep. By optimizing iteratively the array discrete steering rate law, the radiometric impact of the array basic element pattern (subarray pattern) can be accurately compensated. First, simulation results are presented to validate the nonuniform steering TOPSAR.
CitationRuiz, J. [et al.]. Signal-to-noise ratio equalization for TOPSAR mode using a nonuniform steering rate. "IEEE Geoscience and Remote Sensing Letters", 15 Setembre 2011, vol. 9, núm. 2, p. 199-203. 
URIhttp://hdl.handle.net/2117/16079
DOI10.1109/LGRS.2011.2162578
ISSN1545-598X
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  • Departament de Teoria del Senyal i Comunicacions - Articles de revista [2.407]
  • ANTENNALAB - Grup d'Antenes i Sistemes Radio - Articles de revista [195]
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  • RSLAB - Remote Sensing Research Group - Articles de revista [617]
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