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激光引信炸点控制精度分析

Precision analyses of point-of-burst control based on laser fuze

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摘要

前向激光引信可以实现对目标距离的持续探测, 并利用距离信息控制炸点, 炸点控制偏差是影响防空导弹作战性能的关键指标, 因此需要对激光引信的炸点控制精度进行分析。基于制导引信一体化(GIF)和交会段匀速运动的假设, 分析利用时序测距进行炸点估计的全局可观性, 获得测距值存在满足零均值加性高斯分布误差时炸点控制精度的克拉美罗界(CRLB), 仿真结果验证了所得结果的正确性, 并通过数值计算方法对影响炸点控制精度的脱靶量、起爆角、空间采样率等系统参数进行了分析。这可为距离高分辨激光引信的设计提供参考。

Abstract

The forward looking laser fuze could detect target range persistently, use range information to control the point-of-burst. The deviation of point-of-burst control is the key indicator that affecting the operational performance of air defense missile. Therefore, it is necessity to analyze the precision of point-of-burst control based on laser fuze. Under the assumption that guidance integrated fuzing(GIF) and uniform motion in the intersection stage, the global observability of point-of-burst was estimated based on sequential ranging. Then the Cramer-Rao lower bound(CRLB) of point-of-burst control precision was obtained when the ranging data met estimation errors of zero-mean additive Gauassian distribution. The system parameters such as miss-distance, initiation angle and spatial sampling rate which all influenced the control precision of point-of-burst were analyzed through numeric calculation. It provided reference for the design of high resolution laser ranging fuze.

Newport宣传-MKS新实验室计划
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中图分类号:TJ43+9.2

DOI:10.3788/irla201847.1206004

所属栏目:激光技术及应用

基金项目:总装预先研究基金(41419050201)

收稿日期:2018-07-05

修改稿日期:2018-08-03

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李玉钊:北京遥感设备研究所, 北京 100854
刘 岩:北京遥感设备研究所, 北京 100854
陈 曦:北京遥感设备研究所, 北京 100854
沙 沙:北京遥感设备研究所, 北京 100854
郭 娟:北京遥感设备研究所, 北京 100854

联系人作者:李玉钊(lyz_lf@163.com)

备注:李玉钊(1979-), 男, 研究员, 硕士, 主要从事引信方面的研究。

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引用该论文

Li Yuzhao,Liu Yan,Chen Xi,Sha Sha,Guo Juan. Precision analyses of point-of-burst control based on laser fuze[J]. Infrared and Laser Engineering, 2018, 47(12): 1206004

李玉钊,刘 岩,陈 曦,沙 沙,郭 娟. 激光引信炸点控制精度分析[J]. 红外与激光工程, 2018, 47(12): 1206004

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