Title :
Design and implementation of a high speed vector processor for real-time SAR imaging
Author :
Jun, Wang ; Shiyi, Mao ; Yuezhong, Wang
Author_Institution :
Dept. of Electron. Eng., Beijing Univ. of Aeronaut. & Astronaut., China
Abstract :
The VP (vector processor), designed and accomplished by ourselves, is an advanced processor, with BDSP9124/9320 as its main component. It can process 1M samples of data, and processing precision approaches the floating point processor. It could be applied for SAR (synthetic aperture radar) and other fields. The CSA (chirp scaling algorithm) is suitable for the VP calculation. Using the two-dimensional FFT to perform the CSA, the VP can remove corner turning memory and reduce processing overhead. Using the a large radix to complete the FFT, it can also reduce the processing time. The VP can produce a satisfactory image with high resolution, in right and squint side looking strip mapping
Keywords :
digital signal processing chips; fast Fourier transforms; image resolution; image sampling; radar imaging; radar resolution; real-time systems; synthetic aperture radar; vector processor systems; BDSP9124/9320; SAR; chirp scaling algorithm; image resolution; radar imaging; radar resolution; right side looking strip mapping; samples; squint side looking strip mapping; synthetic aperture radar; two dimensional FFT; vector processor; Digital signal processing; Hardware; Pipelines; Pulse compression methods; Radar polarimetry; Real time systems; Signal processing; Signal processing algorithms; Synthetic aperture radar; Vector processors;
Conference_Titel :
Radar, 2001 CIE International Conference on, Proceedings
Conference_Location :
Beijing
Print_ISBN :
0-7803-7000-7
DOI :
10.1109/ICR.2001.984874
