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| Study on the Approximate Gaussian Distribution of the Outputs for Multiple Swerling 4 Targets |
| Li Chao-wei; Wang Hong-qiang; Li Xiang;Zhuang Zhao-wen |
| ATR Key Laboratory, National University of Defense Technology, Changsha 410073, China |
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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 return’s power are the biggest among the targets, is not more than 7 dB.
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Received: 29 July 2004
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2006, Vol. 28 
