一種基于核支持向量機(jī)的盲均衡算法

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本文引用格式：，.一種基于核支持向量機(jī)的盲均衡算法[J].自動(dòng)化與信息工程，2025，46（3）：17-22

LIU Yaning，LIJianglin.Ablind equalizationalgorithm basedon kerel support vector machine[J].Automation & Information Engineering，2025，46（3）：17-22.

關(guān)鍵詞：盲均衡；核支持向量機(jī)；恒模算法；小波函數(shù)；碼間干擾中圖分類(lèi)號(hào)：TN911.5 文獻(xiàn)標(biāo)志碼：A 文章編號(hào)：1674-2605（2025）03-0003-06DOI： 10.12475/aie.20250303 開(kāi)放獲取

A Blind Equalization Algorithm Based on Kernel Support Vector Machine

LIU YaningLI Jianglin （CECHuada Electronic Design Co.，Ltd.， Beijing，Beijing 102209， China）

Abstract：Toaddress the inter-symbol interference （IS）caused bynon-idealchannel transmissioncharacteristics，a blind equalizationalgorithmbasedonkemelsupportvectormachines （SVM）is proposed.Thisalgorithm introduces theerorfunctionof theconstantmodulusalgorithm（CMA）intothecostfunctionoftesupportvectormachin，mitigatingthphaseoffsetissueofCMA in nonliearchannels.Byconstructing theSVMkemel function using wavelet functions，thecomputationalcomplexityof solving nonlinearproblemsisduced，furthemprovingthecomputationaleficiencyof teblindequalizationalgorithmSimulatioesults demonstrate thatcomparedtotheconstant modulusalgorithmandSVMwithSigmoidkernelfunctions，theSVMwithwaveletkeel functions exhibitsfasterconvergencespeed.Moreover，teblindequalizationalgorithmbasedonthis kemelSVMachieveshigher classification accuracy.

Keywords： blind equalization; kernel support vector machine;constant modulus algorithm; wavelet function; inter-symbol interference

0 引言

在無(wú)線(xiàn)通信過(guò)程中，信道時(shí)延、噪聲、多徑衰落等現(xiàn)象均可能導(dǎo)致碼間串?dāng)_或信道間干擾，影響信號(hào)恢復(fù)質(zhì)量。（剩余6834字）