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基于能量守恒的再入轻诱饵鉴别方法
引用本文:宗志伟,饶彬,张文明.基于能量守恒的再入轻诱饵鉴别方法[J].宇航学报,2011,32(5).
作者姓名:宗志伟  饶彬  张文明
作者单位:国防科技大学电子科学与工程学院,长沙,410073
摘    要:针对稀薄大气中的诱饵干扰,提出了一种基于能量守恒定律的再入轻诱饵鉴别方法.该方法利用目标单位质量机械能的损耗表征质阻比的相对大小,实现对轻诱饵的鉴别,避开了质阻比估计的收敛过程.首先根据不同目标的能量方程,推导出目标单位质量机械能损耗的解析表达式,确定了鉴别量;然后理论推导了鉴别量的方差估计式并设计了鉴别门限;最后通过仿真验证了鉴别方法的有效性.

关 键 词:诱饵鉴别  质阻比  能量守恒  稀薄大气  轻诱饵

Discrimination Method for Reentry Light Decoys Based on Conservation of Energy
ZONG Zhi-wei,RAO Bin,ZHANG Wen-ming.Discrimination Method for Reentry Light Decoys Based on Conservation of Energy[J].Journal of Astronautics,2011,32(5).
Authors:ZONG Zhi-wei  RAO Bin  ZHANG Wen-ming
Institution:ZONG Zhi-wei,RAO Bin,ZHANG Wen-ming(School of Electronic Science and Engineering,National University of Defense Technology,Changsha 410073,China)
Abstract:Aiming at reentry decoys in thin atmosphere,a discrimination method based on conservation of energy is presented for light decoys.To avoid the convergence process of estimation of mass-to-drag ratio,in the new method,the loss in mechanical energy of the unit mass is used of target to represent the mass-to-drag ratio to achieve the discrimination of light decoys from other targets.First,the analytic expression of discrimination statistics is derived according to energy equations of different targets.Second,t...
Keywords:Decoy discrimination  Mass-to-drag ratio  Conservation of energy  Thin atmosphere  Light decoy  
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