基于时／频域部分重叠信号对IFM接收机测频和分选的影响

The Impact of the Time/Frequency Domain Overlap Signals on the Frequency Measurement and the Sorting of the IFM Receiver

由于瞬时测频接收机具有动态范围广，截获概率高等特点，已经成为测频接收机中不可缺少的一部分。文章通过分析瞬时测频接收机的测频原理及特点，结合接收机的分选准则，从测量脉冲信号的前沿着手，提出以线性调频信号作为干扰信号，通过合理的时域以及频域配置，达到对瞬时测频接收机频域参数测量以及信号分选产生影响的目的，并运用仿真验证了干扰效果。

Because the instantaneous frequency measurement（IFM） receiver has the character- istics such as a wide dynamic range, a high intercept probability, and it has become an indis- pensable part of the receivers. In this paper, the principle and the characteristic of the IFM re- ceiver are analyzed. And combined with the sorting criterion, from the measurement to the front of the pulse signals, a thought has been advanced： using the linear frequency modulation signal as the jamming signal, through the reasonable configuration, and to achieve the purpose to jam the frequency domain parameter measurement and the signal sorting. The jamming effect has been demonstrated by simulation.