系统工程理论与实践
繫統工程理論與實踐
계통공정이론여실천
Systems Engineering—Theory & Practice
2008年
5期
142~147
,共null页
刘己斌 关祥辰 路建伟 张艺
劉己斌 關祥辰 路建偉 張藝
류기빈 관상신 로건위 장예
电磁环境 干扰 信干比 探测概率 自卫距离
電磁環境 榦擾 信榦比 探測概率 自衛距離
전자배경 간우 신간비 탐측개솔 자위거리
electromagnetic environment; jam; signal to jamming ratio（ SJR）; detection probabihty; self-defence distance
首先分析总结理想情况下雷达方程及其相应参数的求取,研究了有源干扰方程、无源干扰方程、接收机噪声方程及其参数的求取,详细推导了频谱系数.在此基础上,给出复杂电磁环境下综合信干比的计算公式,最后利用求出的综合信干比,计算单次扫描雷达的探测概率和自卫距离,并提出仿真中雷达捕获的判断方法.通过将该模型应用于某型仿真系统中的雷达实体探测模块中,证明该模型具有一定的通用性、准确性和简单实用性.
首先分析總結理想情況下雷達方程及其相應參數的求取,研究瞭有源榦擾方程、無源榦擾方程、接收機譟聲方程及其參數的求取,詳細推導瞭頻譜繫數.在此基礎上,給齣複雜電磁環境下綜閤信榦比的計算公式,最後利用求齣的綜閤信榦比,計算單次掃描雷達的探測概率和自衛距離,併提齣倣真中雷達捕穫的判斷方法.通過將該模型應用于某型倣真繫統中的雷達實體探測模塊中,證明該模型具有一定的通用性、準確性和簡單實用性.
수선분석총결이상정황하뢰체방정급기상응삼수적구취,연구료유원간우방정、무원간우방정、접수궤조성방정급기삼수적구취,상세추도료빈보계수.재차기출상,급출복잡전자배경하종합신간비적계산공식,최후이용구출적종합신간비,계산단차소묘뢰체적탐측개솔화자위거리,병제출방진중뢰체포획적판단방법.통과장해모형응용우모형방진계통중적뢰체실체탐측모괴중,증명해모형구유일정적통용성、준학성화간단실용성.
Radar equation and its parameters are summarized in ideal environment. Then, active jamming equation, passive jamming equation, noise equation, and their parameters are analyzed, and frequency spectrum coefficient is deduced in detail. On this basis, the equation of SJR is provided in complicated electromagnetic environment. At last, radar detection probability in one scan and self-defence distance is deduced by use of the SJR. Moreover, the method of object captured is provided. The application shows that the model has some currency, correctness, simpleness and practicability.
