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设计了合作目标与非合作目标的红外双色单站被动定位算法,通过实例计算的方式证明了该方法的正确性与有效性。分析了双色消光系数差异大小以及目标温度高低对测距定位性能的影响,得出双色消光系数差异越小、目标温度越高,越有利于测距定位的结论。结果表明:对于1 000K以上的目标,选择0.75~3/3~5μm这两个大气窗口作为工作波段,在20km以内都可很好地实现测距定位;对于500K以下的物体,即使在5km的范围内,测距定位效果也较差。
The passive dual-color single-station passive location algorithm of cooperation target and non-cooperation target is designed. The correctness and effectiveness of the method are proved by example calculation. The influence of the difference of two-color extinction coefficient and the target temperature on the positioning performance is analyzed. The conclusion is drawn that the smaller the difference of the two-color extinction coefficient and the higher the target temperature are, the better the positioning is. The results show that for the target of more than 1 000K, the two atmospheric windows of 0.75-3 / 3-5μm are selected as the working band, and ranging positioning can be achieved well within 20km. For objects under 500K, even at 5km Within the range, ranging positioning effect is also poor.