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介绍一种反辐射导弹发射时机告警设备的基本原理和实施方案．根据雷达收到的载机和反辐射导弹回波信号特征，综合成ｅｘｐ（ｊ２π（ｆ０＋ｆｄ）ｔ）信号和ｅｘｐ（ｊ２π（ｆ０＋ｆｄ＋ａｔ／２）ｔ）信号的数学模型。分雷达跟踪波门内外两种情况进行５１２点快速傅里叶变换（ＦＦＴ）谱分析，从频域上把载机和导弹区分开来，达到反辐射导弹发射时机告警的目的。最后给出了仿真结果，结果是令人满意的。
This paper introduces a basic principle and implementation plan of anti-radiation missile launch timing alarm equipment. According to the features of radar signals received by radar and anti-radiation missile, the mathematical model of exp (j2π (f0 + fd) t) and exp (j2π (f0 + fd + at / 2) t) Sub-radar tracking wave door inside and outside the two cases of 512-point Fast Fourier Transform (FFT) spectrum analysis, from the frequency domain to distinguish between the carrier and the missile to achieve anti-radiation missile launch timing warning purposes. Finally, the simulation results are given, the results are satisfactory.