红外侦察告警系统在不同气象条件下作用距离等效推算  

Equivalent calculations of operating distance for IR warning-reconnaissance systems in different weather conditions

作　　者：陈前荣[1,2] 杨淼淼[1,2] 王敏[1,2] 刘连伟[1,2] 

机构地区：[1]电子信息系统复杂电磁环境效应国家重点实验室 [2]中国人民解放军63892部队

出　　处：《红外与激光工程》2012年第12期3160-3165,共6页Infrared and Laser Engineering

基　　金：总装预研基金(51303040203)

摘　　要：根据动态飞行试验数据和经验,在合理的模型简化基础上建立了多条红外侦察告警系统作用距离等效推算准则,包括:确认红外侦察告警系统观测到的迎头作战飞机长波红外辐射主要为蒙皮辐射;考虑光谱分布;将飞机作为点目标处理,基于改进型信噪比准则。综合考虑目标辐射、背景辐射、路径辐射、光学系统辐射,建立了考虑光谱分布和飞机截面积变化的红外侦察告警系统作用距离公式模型,从该作用距离公式出发,推导出红外侦察告警系统的作用距离等效推算公式。采用Matlab7.5编程进行松弛迭代计算,跨平台反复调用LOWTRAN软件以计算大气透过率、目标处背景辐射等,对红外侦察告警系统动态飞行试验数据进行了等效推算,同时分析了温度、湿度、能见度等单一气象参数对红外侦察告警系统探测作用距离的影响。According to the dynamic flight test data and experience, multi-rules of equivalent calculation on operating range of infrared warning-reconnaissance system were set up based on the reasonable and simplified model. The rules are as follows： firstly, the infrared radiation comes mostly from the surface of the approaching plane, and secondly taking into account spectrum distribution, then the plane is considered as point target, finally the improved SNR formula is used. The influence of target radiation, atmospheric background radiation, path radiation, the radiation of optical system and the section change of the plane were proposed synthetically, the operating range model of infrared warning-reconnaissance system was build, and then the equivalent calculation expressions on operating range of infrared warning- reconnaissance system was derived. In the end, the atmospheric permeation rate and the background radiation in the position of target were calculated and the operating range in different typical conditions was derived from equivalent calculation using MATLAB associated with LOWTRAN program, and the influence of the temperature, humidity and visibility was analyzed simultaneously.

关 键 词：红外侦察告警系统 作用距离等效推算 信噪比 长波红外 

分 类 号：TP24[自动化与计算机技术—检测技术与自动化装置]