DocumentCode
2225048
Title
Azimuth Pre-Processing in Real Time imaging of UWB SAR
Author
Li Jianyang ; Chang Wenge ; Li Yueli
Author_Institution
Sch. of Electron. Sci. & Eng., NUDT, Changsha, China
fYear
2009
fDate
Sept. 30 2009-Oct. 2 2009
Firstpage
362
Lastpage
365
Abstract
Large data volume owing to the long aperture of UWB SAR is one of the main difficulties in real-time UWB SAR imaging. Azimuth pre-processing (AzPP) can reduce the data volume, which make real-time imaging of UWB SAR become possible. In this paper, we analyze the AzPP characteristics in UWB SAR, and design the lowpass FIR filter under Chebyshev method. Then a parallel structure of AzPP based on TS201 is proposed. The computational cost and storage are also analyzed. Finally, the imaging result processed with the parallel flow is presented.
Keywords
FIR filters; low-pass filters; radar imaging; real-time systems; synthetic aperture radar; ultra wideband radar; AzPP; Chebyshev method; TS201; azimuth pre-processing; computational storage; lowpass FIR filter design; parallel structure; real-time UWB SAR imaging; Azimuth; Chebyshev approximation; Computational efficiency; Design methodology; Digital signal processing; Finite impulse response filter; Frequency; Passband; Radar polarimetry; Synthetic aperture radar;
fLanguage
English
Publisher
ieee
Conference_Titel
Radar Conference, 2009. EuRAD 2009. European
Conference_Location
Rome
Print_ISBN
978-1-4244-4747-3
Type
conf
Filename
5307133
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