Title :
Angle and doppier ambiguity mitigation for spaceborne sparse array GMTI radar
Author :
Xueyan, Kang ; Bitao, Jiang ; Yunhua, Zhang ; Yan, Zhang
Author_Institution :
Center for Space Sci. & Appl. Res., Chinese Acad. of Sci., Beijing, China
Abstract :
Ground moving target indication (GMTI) using spaceborne sparse array radar is attractive. To mitigate angle and Doppler ambiguities of the moving target detection for sparse array, the paper presented the model of a multi-carrier-frequency radar system and analyzed the basic principle of space time adaptive processing (STAP). Finally, the paper presented preliminary simulations to show that the angle and Doppler ambiguities can be effectively reduced by using multi-carrier-frequency technique.
Keywords :
radar signal processing; space-time adaptive processing; spaceborne radar; Doppler ambiguity mitigation; STAP; angle ambiguity mitigation; ground moving target indication; multicarrier-frequency radar system; space time adaptive processing; spaceborne sparse array GMTI radar; spaceborne sparse array radar; Analytical models; Apertures; Azimuth; Doppler radar; Frequency; Gratings; Object detection; Satellites; Signal processing; Spaceborne radar; GMTI; STAP; Spaceborne sparse array radar; angle and Doppler ambiguities; multi-carrier-frequency mode;
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.2009.5374346