RADAR INTERFERENCE WAVE REMOVER, RADAR TARGET DETECTOR, RADAR INTERFERENCE WAVE REMOVING PROGRAM, AND RADAR INTERFERENCE WAVE REMOVING METHOD
PROBLEM TO BE SOLVED: To accurately remove a radar interference wave mixed in a radar received signal even when the electric power of the radar interference wave equals the electric power of a desired wave, not just when the electric power of the radar interference wave is higher than the electric p...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To accurately remove a radar interference wave mixed in a radar received signal even when the electric power of the radar interference wave equals the electric power of a desired wave, not just when the electric power of the radar interference wave is higher than the electric power of the desired wave.SOLUTION: The present disclosure is a radar interference wave remover 1 comprising: an absolute differential value calculation unit 11 for calculating (1) the absolute time differential value of real number data or complex number data of the amplitude of a radar received signal or (2) a representative value or a moving average value in a prescribed time width regarding the absolute time differential value of real number data or complex number data of the amplitude of the radar received signal; and an interference wave removing unit 14 for removing an interference wave mixed in the radar received signal in a time domain where (1) the absolute time differential value of real number data or complex number data of the amplitude of the radar received signal or (2) the representative value or moving average value in the prescribed time width regarding the absolute time differential value of real number data or complex number data of the amplitude of the radar received signal is larger than a prescribed threshold.SELECTED DRAWING: Figure 1
【課題】本開示は、干渉波の電力が希望波の電力より高いときのみならず、干渉波の電力が希望波の電力と同等であるときであっても、レーダ受信信号に混入している干渉波を精度よく除去することを目的とする。【解決手段】本開示は、(1)レーダ受信信号の振幅の実数データ若しくは複素数データの時間微分の絶対値、又は(2)レーダ受信信号の振幅の実数データ若しくは複素数データの時間微分の絶対値についての所定時間幅における代表値若しくは移動平均値を算出する微分絶対値算出部11と、(1)レーダ受信信号の振幅の時間微分の絶対値、又は(2)レーダ受信信号の振幅の時間微分の絶対値についての所定時間幅における代表値若しくは移動平均値が所定閾値より大きい時間領域において、レーダ受信信号に混入している干渉波を除去する干渉波除去部14と、を備えるレーダ干渉波除去装置1である。【選択図】図1 |
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