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脈沖噪聲下基于Renyi熵的分?jǐn)?shù)低階雙模盲均衡算法

馬濟(jì)通 邱天爽 李蓉 夏楠 李景春

馬濟(jì)通, 邱天爽, 李蓉, 夏楠, 李景春. 脈沖噪聲下基于Renyi熵的分?jǐn)?shù)低階雙模盲均衡算法[J]. 電子與信息學(xué)報(bào), 2018, 40(2): 378-385. doi: 10.11999/JEIT170366
引用本文: 馬濟(jì)通, 邱天爽, 李蓉, 夏楠, 李景春. 脈沖噪聲下基于Renyi熵的分?jǐn)?shù)低階雙模盲均衡算法[J]. 電子與信息學(xué)報(bào), 2018, 40(2): 378-385. doi: 10.11999/JEIT170366
MA Jitong, QIU Tianshuang, LI Rong, XIA Nan, LI Jingchun. Dual-mode Blind Equalization Algorithm Based on Renyi Entropy and Fractional Lower Order Statistics Under Impulsive Noise[J]. Journal of Electronics & Information Technology, 2018, 40(2): 378-385. doi: 10.11999/JEIT170366
Citation: MA Jitong, QIU Tianshuang, LI Rong, XIA Nan, LI Jingchun. Dual-mode Blind Equalization Algorithm Based on Renyi Entropy and Fractional Lower Order Statistics Under Impulsive Noise[J]. Journal of Electronics & Information Technology, 2018, 40(2): 378-385. doi: 10.11999/JEIT170366

脈沖噪聲下基于Renyi熵的分?jǐn)?shù)低階雙模盲均衡算法

doi: 10.11999/JEIT170366
基金項(xiàng)目: 

國家自然科學(xué)基金(61671105, 61139001, 61172108, 81241059)

Dual-mode Blind Equalization Algorithm Based on Renyi Entropy and Fractional Lower Order Statistics Under Impulsive Noise

Funds: 

The National Natural Science Foundation of China (61671105, 61139001, 61172108, 81241059)

  • 摘要: 針對脈沖噪聲下盲均衡器難以快速收斂并有效抑制噪聲的問題,該文提出一種基于Renyi熵的分?jǐn)?shù)低階雙模盲均衡算法。該算法將Renyi熵與分?jǐn)?shù)低階統(tǒng)計(jì)量相結(jié)合并用作代價(jià)函數(shù)來更新盲均衡器權(quán)向量,利用Renyi熵提高算法的收斂速度,利用分?jǐn)?shù)低階統(tǒng)計(jì)量增強(qiáng)算法對脈沖噪聲的抑制能力。為了提升系統(tǒng)穩(wěn)健性,該文進(jìn)一步提出雙閾值加權(quán)判決法,通過設(shè)置雙閾值并引入非線性加權(quán)函數(shù),使得兩種代價(jià)函數(shù)之間的切換更為平滑。在不同脈沖性噪聲、不同信道環(huán)境下進(jìn)行仿真實(shí)驗(yàn),結(jié)果表明,該文算法既能有效抑制脈沖噪聲,又具有較快的收斂速度。
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出版歷程
  • 收稿日期:  2017-04-24
  • 修回日期:  2017-07-27
  • 刊出日期:  2018-02-19

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