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研究了测向交叉定位系统中的最优交会角问题。在目标到两部被动传感器基线之间的垂直距离不同的情况下和最小圆概率误差(CEP)准则下,得出了一些有意义的结论。研究表明,最优交会角跟目标到两部传感器基线的垂直距离与基线长度的比值l有关。当l≥3~(1/2)/6时,只存在一个最优交会角且此时目标与两部被动传感器呈等腰三角形,并在此情况下分析了l的变化对圆概率误差的影响。当l<3~(1/2)/6时,存在两个相等的最优交会角。得出的结论在多个被动传感器的优化配置进而提高目标定位精度方面具有一定的理论和实际意义。
The optimal intersection angle in cross-location system is studied. Some meaningful conclusions have been obtained with different vertical distances from the target to the baseline of the two passive sensors and the minimum circular error probability (CEP) criterion. The research shows that the optimal cross-talk angle is related to the ratio of the vertical distance between the target and the two sensor baseline to the baseline length. When l≥3 ~ (1/2) / 6, there is only one optimal intersection angle and the target is isosceles triangle with two passive sensors. In this case, the change of l to the error of circularity influences. When l <3 ~ (1/2) / 6, there are two equal optimal intersection angles. The conclusions drawn are of theoretical and practical significance in optimizing the configuration of multiple passive sensors and improving the target positioning accuracy.