多个斯威林4型目标输出信号近似服从高斯分布研究
Study on the Approximate Gaussian Distribution of the Outputs for Multiple Swerling 4 Targets
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摘要: 为了将对瑞利目标的检测与分辨方法应用于多个斯威林4型目标的检测与分辨，该文主要研究了多个斯威林4型目标存在时输出信号近似为高斯分布的条件。首先推导了多个斯威林4型目标存在时雷达接收机输出信号的概率分布；在此基础上，通过仿真获得了输出信号近似为高斯分布的条件，即多个目标中回波功率最大的两个目标的信噪比相差不大于7dB。Abstract: The condition under which the output signals of monopulse radar receiver with two Swerling 4 targets are approximate to the Gaussian distribution has been studied in order to apply the detection and estimation methods of Rayleigh targets to Sweriling 4 targets. First, the probability density function(pdf) of the outputs under multiple Swerling targets are derived; then get the condition, under which the pdf of the outputs is approximate to Gaussian distribution, that the difference between the SNRs of two targets , whose returns power are the biggest among the targets, is not more than 7 dB.
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何友，关键等著. 雷达自动检测及恒虚警处理. 北京：清华大学出版社，1999：4-5.[2]Blair W D, Brandt-Pearce M. Unresolved Rayleigh target detection using monopulse measurements[J].IEEE Trans. on Aerospace and Electronic Systems.1998,34(2 ):543-551[3]Blair W D, Brandt-Pearce M. Monopulse DOA estimation of two unresolved Rayleigh targets[J].IEEE Trans. on Aerospace and Electronic Systems.2001,37(2):452-469[4]Sinha A, Kirubarajan T, Bar-Shalom Y. Maximum likelihood angle extractor for two closely spaced targets[J].IEEE Trans. on Aerospace and Electronic Systems.2002,38(1):183-201[5]Zhang Xin，Willett P, Bar-Shalom Y. Monopulse radar detection and localization of multiple targets via joint multiple-bin processing.Proceedings of the 2003 IEEE Radar Conference，Huntsville Alabama，2003：232-237.[6]中山大学数学力学系《概率论及数理统计》编写小组编. 概率论及数理统计(上册). 北京：人民教育出版社，1980：237-270. -
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