针对星载合成孔径雷达(SAR)的特点,提出了一种基于多核数字信号处理器(DSP)的欺骗式干扰实时产生算法优化方法,该方法使用了哈希查找表、动态/静态计算分离等技术,并针对DSP芯片硬件架构进行算法优化,达到了实时生成星载SAR欺骗式干扰信号的目的,为星载SAR 欺骗式干扰信号实时产生提供了技术手段,并为其他基于DSP的数字信号处理算法提供了一种可行的优化思路。文中针对算法设计与工程实现中影响实时性的关键问题进行分析,并针对典型合成孔径雷达进行验证,证明了该方法的有效性与实时性。

In this paper, a real-time generation algorithm optimization method of deceptive jamming signal for space-borne synthetic aperture radar (SAR) based on multicore DSP is proposed. Hash lookup table, dynamic/static computational separation and other techniques based on DSP hardware architecture are used in this method. The purpose of real-time generation of deceptive jamming signal for space-borne SAR is achieved, which provides a feasible optimization idea for other DSP-based algorithms. Several key problems that can affect real-time performance are analyzed in algorithm design and engineering implementation. The verification of typical SAR is carried out, and the effectiveness and real-time of the method are proved.

TN957.51

航空科学基金项目