箔条干扰回波信号频域特性研究

Frequency Characteristics of Chaff Echo Signal

针对雷达内场测试中由于模拟箔条云回波信号信息不完整造成的测试结果不能反映雷达实战性能的问题,提出了考虑箔条锥动的回波信号构建方法。该方法综合考虑箔条丝平动与锥动对频谱的作用,得到单根箔条以及箔条云在不同波段、不同运动情况下的回波信号频谱,总结了不同运动情况下的频谱变化规律,研究结论对于建立更真实的模拟战场环境、提高雷达目标探测以及抗箔条干扰能力具有重要意义。

In the infield test of radar, according to the problem that the incomplete information of the simulation of chaff cloud echo signal caused by test results cannot reflect the performance of radar practical problems, a new echo signal construction method is put forward. By considering the effect the chaff translation and cone rotary motion upon spectrum, this method gets echo signal chaff and chaff cloud in different bands and different motion. Then, the spectral variation rules of different motion are summed up. The conclusion of the study is of great significance for the establishment of a more realistic simulation of battlefield environment and improving radar target detection and anti chaff jamming ability.