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一種穩(wěn)健的室內(nèi)無(wú)模糊多聲源TDOA估計(jì)算法

房玉琢 許志勇

房玉琢, 許志勇. 一種穩(wěn)健的室內(nèi)無(wú)模糊多聲源TDOA估計(jì)算法[J]. 電子與信息學(xué)報(bào), 2016, 38(5): 1143-1150. doi: 10.11999/JEIT150824
引用本文: 房玉琢, 許志勇. 一種穩(wěn)健的室內(nèi)無(wú)模糊多聲源TDOA估計(jì)算法[J]. 電子與信息學(xué)報(bào), 2016, 38(5): 1143-1150. doi: 10.11999/JEIT150824
FANG Yuzhuo, XU Zhiyong. A Robust Algorithm for Unambiguous TDOA Estimation of Multiple Sound Sources under Indoor Environment[J]. Journal of Electronics & Information Technology, 2016, 38(5): 1143-1150. doi: 10.11999/JEIT150824
Citation: FANG Yuzhuo, XU Zhiyong. A Robust Algorithm for Unambiguous TDOA Estimation of Multiple Sound Sources under Indoor Environment[J]. Journal of Electronics & Information Technology, 2016, 38(5): 1143-1150. doi: 10.11999/JEIT150824

一種穩(wěn)健的室內(nèi)無(wú)模糊多聲源TDOA估計(jì)算法

doi: 10.11999/JEIT150824
基金項(xiàng)目: 

國(guó)家自然科學(xué)基金(61171167, 61401203),江蘇省自然科學(xué)基金(BK20130776)

A Robust Algorithm for Unambiguous TDOA Estimation of Multiple Sound Sources under Indoor Environment

Funds: 

The National Natural Science Foundation of China (61171167, 61401203), Natural Science Foundation of Jiangsu Province (BK20130776)

  • 摘要: 該文針對(duì)室內(nèi)環(huán)境下的寬間距多聲源到達(dá)時(shí)間差(TDOA)估計(jì)問(wèn)題,研究了一種基于近似核密度估計(jì)(KDE)的無(wú)模糊算法。根據(jù)聲頻信號(hào)的短時(shí)頻譜稀疏性,利用相關(guān)性檢測(cè)(CT)提取單個(gè)聲源能量占優(yōu)的時(shí)頻支撐域,進(jìn)而將觀測(cè)信號(hào)的歸一化互功率譜(NCS)所構(gòu)建的近似核函數(shù)通過(guò)累加平均削弱室內(nèi)混響的干擾,同時(shí)引入多階段(MS)分頻帶處理有效解決寬間距時(shí)的空域模糊。理論推導(dǎo)及仿真研究驗(yàn)證了該算法是一種穩(wěn)健的室內(nèi)無(wú)模糊多聲源TDOA估計(jì)算法。
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出版歷程
  • 收稿日期:  2015-07-09
  • 修回日期:  2015-12-18
  • 刊出日期:  2016-05-19

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