TY - GEN
T1 - Multi-core DSP-based Acceleration of SAR BP Algorithm Imaging
AU - Yang, Luchao
AU - Kuang, Lei
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - The back projection (BP) imaging algorithm is a time-domain synthetic aperture radar (SAR) imaging algorithm. The BP algorithm does not perform approximation processing during imaging and has high imaging accuracy. However, the BP algorithm needs sub-image imaging at each azimuth moment, which has a high computational complexity and limits the application in scenarios with high imaging rate requirements. Therefore, in this paper we proposed a parallel acceleration scheme of the BP algorithm based on the FT-M3000 digital signal processor (DSP) to parallelize the computation of sub-images at each azimuth moment in sub-aperture imaging, and realize parallel imaging of four sub-aperture data. Experimental results show that the total imaging time of the four sub-aperture images is 4.12 seconds, compared with the imaging time of the four sub-aperture images using a 3.3GHz CPU for 263.65 seconds, and the imaging speed of this scheme is increased by 64 times.
AB - The back projection (BP) imaging algorithm is a time-domain synthetic aperture radar (SAR) imaging algorithm. The BP algorithm does not perform approximation processing during imaging and has high imaging accuracy. However, the BP algorithm needs sub-image imaging at each azimuth moment, which has a high computational complexity and limits the application in scenarios with high imaging rate requirements. Therefore, in this paper we proposed a parallel acceleration scheme of the BP algorithm based on the FT-M3000 digital signal processor (DSP) to parallelize the computation of sub-images at each azimuth moment in sub-aperture imaging, and realize parallel imaging of four sub-aperture data. Experimental results show that the total imaging time of the four sub-aperture images is 4.12 seconds, compared with the imaging time of the four sub-aperture images using a 3.3GHz CPU for 263.65 seconds, and the imaging speed of this scheme is increased by 64 times.
KW - Back projection
KW - Digital signal processor
KW - Imaging acceleration
KW - Synthetic aperture radar
UR - https://www.scopus.com/pages/publications/85143312211
U2 - 10.1109/CEI57409.2022.9950223
DO - 10.1109/CEI57409.2022.9950223
M3 - 会议稿件
AN - SCOPUS:85143312211
T3 - 2022 2nd International Conference on Computer Science, Electronic Information Engineering and Intelligent Control Technology, CEI 2022
SP - 728
EP - 731
BT - 2022 2nd International Conference on Computer Science, Electronic Information Engineering and Intelligent Control Technology, CEI 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2nd International Conference on Computer Science, Electronic Information Engineering and Intelligent Control Technology, CEI 2022
Y2 - 23 September 2022 through 25 September 2022
ER -