SAR干扰信号产生系统设计

Design of SAR Jamming Signal Generating System

介绍了SAR干扰信号基本形式,提出了基于DSP的宽带干扰信号产生方案,该方案在零中频保持了类似于SAR回波信号的所有优点,对进行SAR相干、欺骗干扰有实际意义,外场试验证明系统设计是有效的。系统主要功能是根据指挥控制命令和侦察系统传递的信息,实时产生满足要求的相干、噪声等干扰信号。系统的可移植性、扩充性较高,处理比较灵活。该文基于DSP的软硬件设计对其他雷达干扰设备及雷达回波模拟器的研制有借鉴意义。

This paper introduces several basic types of SAR jamming signals and provides a jamming sig- nal generating system scheme. This scheme retains all merits of SAR echo signals in the circumstance of zero- IF, which has practical significance for SAR coherence and deceive jamming. Outfield tests validate the validity of this system. Based on the command and information from the reconnaissance system, the system can produce appropriate jamming signals in realtime, such as coherence, noise, etc. The system can easily be reused, expanded and flexible. The software-hardware design based on DSP has good reference value to the jamming signal generation for other radars and the design of radar echo simulator.