相關(guān)熵與循環(huán)相關(guān)熵信號處理研究進展
doi: 10.11999/JEIT190646 cstr: 32379.14.JEIT190646
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大連理工大學電子信息與電氣工程學部 大連 116024
Development in Signal Processing Based on Correntropy and Cyclic Correntropy
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Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian 116024, China
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摘要:
在無線電監(jiān)測和目標定位等應(yīng)用中,接收信號經(jīng)常會受到脈沖噪聲和同頻帶干擾等復雜電磁環(huán)境的影響,傳統(tǒng)的基于2階統(tǒng)計量的信號處理方法往往不能正常工作,基于分數(shù)低階統(tǒng)計量的信號處理方法也由于對信號噪聲統(tǒng)計先驗知識的依賴性而遇到困難。近年來提出并受到信號處理領(lǐng)域普遍關(guān)注的相關(guān)熵和循環(huán)相關(guān)熵信號處理理論與方法,是解決復雜電磁環(huán)境下信號分析處理、參數(shù)估計、目標定位和其他應(yīng)用問題的有效技術(shù)手段,有力促進了非高斯、非平穩(wěn)信號處理理論方法和應(yīng)用的發(fā)展。該文系統(tǒng)性地綜述了相關(guān)熵和循環(huán)相關(guān)熵信號處理的基本理論和基本方法,包括相關(guān)熵與循環(huán)相關(guān)熵的起源背景、定義概念、性質(zhì)特點,以及所包含的數(shù)學物理意義。該文還介紹了相關(guān)熵與循環(huán)相關(guān)熵信號處理在多個領(lǐng)域的應(yīng)用問題,希望對非高斯、非平穩(wěn)統(tǒng)計信號處理的研究和應(yīng)用有所裨益。
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關(guān)鍵詞:
- 信號處理 /
- 相關(guān)熵 /
- 循環(huán)相關(guān)熵 /
- 非高斯 /
- 非平穩(wěn)
Abstract:In radio monitoring and target location applications, the received signals are often affected by complex electromagnetic environment, such as impulsive noise and cochannel interference. Traditional signal processing methods based on second-order statistics often fail to work properly. The signal processing methods based on fractional lower order statistics also encounter difficulties due to their dependence on prior knowledge of signals and noises. In recent years, the theory and method of correntropy and cyclic correntropy signal processing, which are widely concerned in the field of signal processing, are put forward. They are effective technical means to solve the problems of signal analysis and processing, parameter estimation, target location and other applications to complex electromagnetic environment. They promote greatly the development of the theory and application of non-Gaussian and non-stationary signal processing. This paper reviews systematically the basic theory and methods of correntropy and cyclic correntropy signal processing, including the background, definition, properties and characteristics of correntropy and cyclic correntropy, as well as their mathematical and physical meanings. This paper introduces also the applications of correntropy and cyclic correntropy signal processing to many fields, hoping to benefit the research and application of non-Gaussian and non-stationary statistical signal processing.
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Key words:
- Signal processing /
- Correntropy /
- Cyclic correntropy /
- Non-Gaussian /
- Non-stationary
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