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目前,电子对抗已成为敌对双方斗争的重要方式,一种影响战斗力强弱的重要手段。在近代军事技术上,多部雷达常常集中在一个较小的场合下工作。如机场、阵地、港口、舰船上,往往雷达多达十几部。它们之间相距很近(近的十多米,远的也不过几公里)很容易发生相互干扰,尤其是当这些雷达工作频率在同一波段时,干扰更为严重。在同一地区由于某些雷达发射脉冲功率很大,接收机的灵敏度又很高,脉冲信号的频谱较宽,因而有可能进入工作频率相近的雷达接收机通带范围内形成干抗。另外即使工作频率相差很远,由于发射脉冲功率很高,脉冲信号仍然可以直接射入或通过目标反射到另一部雷达接收机,而形成干扰。本文仅讨论作为制导系统一个环节的弹上应答机防止制导雷达附近同波段的大功率雷达
At present, electronic warfare has become an important means of hostile struggle between the two sides, an important means of influencing the strength of combat. In modern military technology, many radars are often concentrated on a smaller occasion. Such as airports, positions, ports, ships, often up to a dozen radar. Very close to each other (nearly ten meters, not far a few kilometers away) are prone to interfere with each other, especially when these radars work in the same frequency band, the interference is more serious. In the same area, due to the large power of some radars, the high sensitivity of the receiver and the wide frequency spectrum of the pulse signal, it is possible to enter the passband of the radar receiver with similar operating frequency to form dry reactance. In addition, even if the working frequency is far apart, the pulse signal can still be directly injected or reflected by the target to another radar receiver due to the high transmitting pulse power, which causes interference. This article discusses only as a part of the guidance system on the transponder to prevent guidance radar in the same band near the high-power radar