Title :
A novel algorithm for repeated trajectory bistatic spotlight SAR imaging
Author :
Bosen, He ; Zhang Ran ; Song Meng ; Bingning, Li ; Xing Meng-dao
Author_Institution :
Nat. key Lab. for Radar Signal Process., Xidian Univ., Xi´´an, China
Abstract :
This paper makes a detailed analysis on the echo signal of the repeated trajectory bistatic SAR. According to the characteristic of spotlight SAR signal, an algorithm based on Spectrum Analysis (SPECAN) method is proposed. The algorithm removes the azimuth ambiguity, and it also ensures good imaging quality over wildfield scene without defocus caused by spatial variance of target position.
Keywords :
radar imaging; synthetic aperture radar; SAR imaging; SPECAN; azimuth ambiguity; echo signal; good imaging quality; repeated trajectory bistatic spotlight; spatial variance; spectrum analysis method; target position; wildfield scene; Algorithm design and analysis; Azimuth; Chirp modulation; Focusing; Geometry; Layout; Radar polarimetry; Signal analysis; Signal processing algorithms; Transmitters; Bistatic spotlight SAR; SPECAN algorithm;
Conference_Titel :
Synthetic Aperture Radar, 2009. APSAR 2009. 2nd Asian-Pacific Conference on
Conference_Location :
Xian, Shanxi
Print_ISBN :
978-1-4244-2731-4
Electronic_ISBN :
978-1-4244-2732-1
DOI :
10.1109/APSAR.2009.5374302
