An advanced real-time pulsed Doppler-pulse compressed radar signal processing system that managed to track targets with high velocity was implemented based on 8 ADSP- TS201 TigerSHARC processors. System structure designing was discussed, including DSP(digital signal processors) topology, communication, synchronization and control. In parallel system, it is crucial to optimize the mapping of problems onto parallel execute units of specific hardware platform. When implementing effective algorithm mapping, various factors were considered, such as algorithm complexity and resolvability, hardware process and real-time capability, and CPU load balance of communication and calculation tasks. Parallel design and optimization on both system and instruction levels were emphasized, while realizing system level optimization. Also parallel pipeline designing methodology was presented, including the pipelines both inside and between DSPs. With regard to the instruction level optimization, several parallel mechanisms such as SIMD(single instruction multiple data), static superscalar, BTB(branch target buffer) and space-time tradeoff were studied to optimize the system with extremely high performance, which was proved by the field experiment results.
Fan Xiaobo, Zhang Yongjie, Wang Jun, Li Shaohong.Parallel algorithm realization of high range resolution radar based on multi-processor[J] JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2006,V32(09): 1077-1082
Kuo C F, Kuo T W, Chang Cheng, et al. Real-time digital signal processing of phased radar [J].IEEE Transactions on Parallel and Distributed Systems.2003, 14(5):433-446
ëʿ��, ���ٺ�, ������. ����������״�[M]. ����:������ҵ������,1990 Mao Shiyi, Li Shaohong, Zhang Ruisheng. Pulse doppler radar[M]. Beijing:National Defense Industry Press, 1990(in Chinese)
Stimson G W. Introduction to airborne radar 2nd edition [M]. North Carolina:Scitech Publishing, Inc, 1998
Ackenhusen J G .ʵʱ�źŴ���—�źŴ���ϵͳ�������ʵ��[M].�����,����,��������.����:���ӹ�ҵ������,2002 Ackenhusen J G. Real-time signal processing:design and implementation of signal processing systems [M].Translated by Li Yubai, Yang Le, Li Zheng, et al. Beijing:Publishing House of Electronics Industry,2002(in Chinese)
Lerner B. Writing efficient floating-point FFTs for ADSP-TS201 TigerSHARC processors . http://www. analog. com/ UploadedFiles/Application Notes/269151224EE218v02.pdf, 2004