Title :
A Modified RD Algorithm for High squint SAR
Author :
ShangGuan, Zhu ; Lei, Wanming ; Yu, Wenzheng
Author_Institution :
Nanjing Res. Inst. of Electron. Technol.
Abstract :
According to large rang walk of the high squint SAR echo, and combined with the secondary range compression and matching the cubic phase in azimuth, this paper presents a new algorithm which corrects part of the rang walk in the time domain and frequency domain respectively. The algorithm can overcome the limitations of the focus depth and time-bandwidth product in azimuth. The results of the Simulations demonstrated that the algorithm is suitable for the high squint SAR imaging
Keywords :
Doppler radar; echo; frequency-domain analysis; radar imaging; synthetic aperture radar; time-domain analysis; frequency domain analysis; high squint SAR echo; modified RD algorithm; rang walk; range-Doppler; secondary range compression; synthetic aperture radar imaging; time domain analysis; Aircraft; Azimuth; Chirp; Data processing; Frequency domain analysis; High-resolution imaging; History; Image resolution; Spatial resolution; Synthetic aperture radar; High squint; RD algorithm; SAR;
Conference_Titel :
Radar, 2006. CIE '06. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
0-7803-9582-4
Electronic_ISBN :
0-7803-9583-2
DOI :
10.1109/ICR.2006.343250
