针对目标以不同角度运动时，采用峰峰值时间差法测距所得到误差较大，以及部分角度处的测量值严重偏离真实值的情况，提出了一种利用两个静态红外传感器在对瞄情况下进行目标定位的方法。这种方法首先把两个 PIR 置于同一直线、同一高度上、相距30 m 进行对瞄，当目标垂直和斜切穿过 PIR 的探测视场时，对瞄的 PIR 测得距离值并相互修正。实验结果表明，在对瞄情况下，提高了峰峰值时间差法的精度。%When the targets are moving at different angles,the ranging error of the peak to peak time difference method is large,and the measured values at some angles seriously deviate from the true values.Aiming at the problems,a tar-get location method is presented with two static pyroelectric infrared sensors (PIR).First,the two PIR are placed at the same line and at the same height,and they aim at each other at the distance of 30 m.When the target goes across the detection field of view vertically or obliquely,the distances are measured by two PIR,and the results are correc-ted.The results show that the precision of the peak to peak time difference method has been improved obviously.
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