针对海面目标的机载红外单站几何定位技术

发布时间：2018-07-31 19:13

【摘要】：红外系统作为一种无源定位系统,其特点是被动探测,不受电磁干扰,具备测角功能,且测角精度高,但本身不具备测距功能。针对海面目标,利用载机可获得的参数,采用单站几何定位技术实现对目标的快速定位。本文分析红外探测器的几何定位算法,推导了几何定位误差公式,总结了影响定位精度的因素,并比较了载机在不同高度、不同俯仰角下对定位精度的影响。仿真结果表明,单站几何定位的精度受载机高度、俯仰角的影响,在俯仰角较小时,基于单站几何定位的定位精度极高,具有一定的工程意义。
[Abstract]:As a passive positioning system, infrared system is characterized by passive detection, free from electromagnetic interference, angle measurement function and high angle measurement accuracy, but it does not have the function of ranging. In view of the sea surface target, the single station geometric positioning technique is used to realize the fast positioning of the target by using the parameters that can be obtained by the carrier. In this paper, the geometric positioning algorithm of infrared detector is analyzed, the formula of geometric positioning error is deduced, the factors influencing the positioning accuracy are summarized, and the influence of different height and pitch angle on the positioning accuracy is compared. The simulation results show that the accuracy of single station geometric positioning is very high because of the influence of height and pitch angle of single station geometric positioning, and the positioning accuracy is very high when the pitch angle is small, so it has certain engineering significance.
【作者单位】：中国电子科学研究院;
【分类号】：TN21

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