一种基于最小正整数法的谐波抑制方法

A harmonic suppression method based on least positive integer solution

信号分选是雷达侦察告警设备信号处理的一个关键环节,随着信号环境的日益复杂,雷达侦察告警设备接收雷达信号时会出现大量的脉冲丢失,使得传统的信号分选算法在估计PRI时很容易出现PRI谐波信号,降低了信号分选的正确率。针对这种情况,提出了一种基于最小正整数法的谐波抑制方法,采用最小正整数法对PRI谐波进行了有效的抑制,用于引导信号分选算法对PRI的正确估计,从而减少了PRI谐波现象并提高了分选正确率。该方法在工程应用中具有较强的实用性。

Signal sorting is a key link of signal processing in radar reconnaissance and warning equipment.With the signal environment becomes more and more complex,a large number of pulses will be lost in the radar reconnaissance and warning equipment when the radar signals are received,which makes the traditional signal sorting methods generate PRI harmonic frequently and decrease the accuracy of signal sorting obviously.A har⁃monic suppression method is put forward based on least positive integer solution,which checks the really PRI of harmonic.It guides the PRI estimation for signal sorting process,decreases frequency harmonic phenomenon and improves the correct rate of signal sorting.The method is very practical in engineering.