一种欺骗式SAR干扰信号发生器的设计与实现

针对采用二维卷积干扰算法运算量大的问题,设计了基于CPCI构架的干扰信号发生器,对算法进行了合理划分和映射.该干扰信号发生器采用数字射频存储技术,运用并行处理方法,使用16片DSP并行产生干扰信号,计算的并行效率接近100%.目前,干扰信号发生器已经完成了设计和研制,并通过了实验室和外场实验.实验结果表明,它可以实时产生二维假目标干扰信号对SAR进行连续干扰.

Design and Implementation of Deception Jamming Signal Generator Against SAR

Two dimension convolution jamming algorithm is usually adopted to generate deceive jamming signal, but the real-time property is difficult to be realized due to the huge amount of calculation. Based on the CPCI framework, a jamming signal generator was designed by reasonably partitioning the system algorithm and mapping it to the hardware. The jamming signal was generated using 16 pieces of parallel DSP, and the parallel processing algorithm got almost 100% parallel efficiency. The designed system has been developed and manufactured. Laboratorial and external experiments have verified that the designed generator could generate two-dimensional false target jamming signal to interfere synthetic aperture radar (SAR) in real-time continuously.