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本文提出一种新颖的数字式动目标模拟器,它的特点是在接收到某一频率的输入信号后,经过一段可控的数字延迟,在输出端可获得在同一频率之上叠加一个多普勒频移的输出信号。它能对已调信号实现较长时间的可控延迟,控制方便、灵活并具有可编程功能和多信号的处理能力。这种数字式动目标模拟器可在ECM系统的速度欺骗干扰中发挥重要作用,该模拟器也会成为多普勒雷达和连续波雷达设计师的有力检测设备。
This paper presents a novel digital moving target simulator, which is characterized by receiving a certain frequency of the input signal, after a controllable digital delay at the output can be obtained over the same frequency superimposed on a Doppler Le frequency shift of the output signal. It can control the delayed signal has a long delay controllable, easy to control, flexible and has programmable features and multi-signal processing capabilities. This digital moving-target simulator can play an important role in speed-spoofing interference in ECM systems and will also become a powerful test facility for Doppler radar and CW radar designers.