基于KL散度的雷達(dá)信號波形抗截獲性能評估

王旭東; 陸威*; 閆賀

doi:10.11999/JEIT161124

基于KL散度的雷達(dá)信號波形抗截獲性能評估

doi: 10.11999/JEIT161124

基金項(xiàng)目:

國家自然科學(xué)基金 (61201208)，中國博士后科學(xué)基金(2014M561643)，中央高校基本科研業(yè)務(wù)費(fèi)專項(xiàng)資金(NJ20150018)

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- 被引次數(shù): 0
出版歷程
- 收稿日期: 2016-10-21
- 修回日期: 2017-03-17
- 刊出日期: 2017-08-19

Anti-interception Performance Evaluation of Radar Signal Waveform Based on KL Divergence

Funds:

The National Natural Science Foundation of China (61201208), China Postdoctoral Science Foundation (2014M561643), The Fundamental Research Funds for the Central Universities (NJ20150018)

摘要

摘要: 該文給出了一種對13類常用雷達(dá)信號波形的抗截獲性能進(jìn)行評價的新方法，可為雷達(dá)波形的設(shè)計(jì)者提供評價波形抗截獲性能的一般性準(zhǔn)則。該準(zhǔn)則假定白噪聲信號具有最好的抗截獲性能，通過將不同雷達(dá)信號波形和白噪聲信號進(jìn)行比較，得出雷達(dá)信號和白噪聲的相似程度。首先，利用Wigner半圓法推出白噪聲和雷達(dá)信號的特征分布函數(shù)，然后用KL散度來表示雷達(dá)信號和白噪聲之間的相似性，較小的KL散度值，意味著較強(qiáng)的抗截獲性能，反之亦然。理論推導(dǎo)和仿真驗(yàn)證表明這種評價準(zhǔn)則可對不同雷達(dá)信號波形的抗截獲性能進(jìn)行有效評價。
- 雷達(dá)信號波形 /
- 抗截獲性能 /
- 評價準(zhǔn)則 /
- KL散度 /
- Wigner半圓法
Abstract: This paper presents a new method for evaluating the anti-interception performance of thirteen kinds of radar signals, which can be used to guide radar waveform designing. The method assumes that white noise signal has the best anti-interception performance, by comparing different radar signals with it, the similarity degree of radar signal and white noise signal can be obtained. First, the characteristics distribution function of white noise and radar signal distribution function are introduced using Wigner semicircle law. Second, KL divergence is used to represent the similarity between radar signal and white noise. Small value of KL divergence means better anti interception performance, and vice versa. Theoretical derivation and simulation results show that this method can evaluate the anti interception performance of different radar signals effectively.
- Radar signal waveform /
- Anti-interception performance /
- Evaluation criterion /
- KL divergence /
- Wigner semicircle law

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參考文獻(xiàn)(19)

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