Please use this identifier to cite or link to this item: https://doi.org/10.1117/1.3268325
Title: Azimuth preprocessing for monostatic and bistatic spotlight synthetic aperture radar maging based on spectral analysis convolution
Authors: Zhang, L.
Qiu, C. 
Xing, M.
Bao, Z.
Keywords: azimuth preprocessing.
bistatic SAR
monostatic SAR
spectral analysis
spotlight synthetic aperture radar
Issue Date: 2009
Source: Zhang, L., Qiu, C., Xing, M., Bao, Z. (2009). Azimuth preprocessing for monostatic and bistatic spotlight synthetic aperture radar maging based on spectral analysis convolution. Journal of Applied Remote Sensing 3 (1) : -. ScholarBank@NUS Repository. https://doi.org/10.1117/1.3268325
Abstract: Dechirping is a technique widely used to reduce sampling rate. It is well suited for the illumination of small scenes. In this paper, we extend this idea to mono/bistatic spotlight synthetic aperture radar (SAR) imaging. An azimuth preprocessor based on the spectral analysis (SPECAN) convolution is presented. The convolution overcomes the Doppler aliasing of echoed signals, while the wavenumber analytic formula keeps unchanged. Since the spatial characteristic of the signal is preserved, the preprocessing is well compatible with conventional focusing approaches, such as chirp scaling algorithm and frequency scaling algorithm The proposed method is validated by simulations in both monostatic and bistatic cases. © 2009 Society of Photo-Optical Instrumentation Engineers.
Source Title: Journal of Applied Remote Sensing
URI: http://scholarbank.nus.edu.sg/handle/10635/55179
ISSN: 19313195
DOI: 10.1117/1.3268325
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