计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2015年
2期
205-208
,共4页
钟林波%吉建华%小军%王艳芬%伍守豪
鐘林波%吉建華%小軍%王豔芬%伍守豪
종림파%길건화%소군%왕염분%오수호
声源定位%MUSIC算法%角度预估计%谱搜索
聲源定位%MUSIC算法%角度預估計%譜搜索
성원정위%MUSIC산법%각도예고계%보수색
speech source localization%MUSIC algorithm%angle pre-estimation%spectrum searching
基于MUSIC算法的声源定位技术具有很高的估计精度及稳定性,算法的运算量主要集中在谱搜索部分。可以通过时延估计声源定位算法预先估计出方位角来缩小谱搜索空间,降低MUSIC算法的运算量。实验结果表明,该方法在保证定位精度的同时,可以大大地降低运算量,对工程应用具有一定的参考价值。
基于MUSIC算法的聲源定位技術具有很高的估計精度及穩定性,算法的運算量主要集中在譜搜索部分。可以通過時延估計聲源定位算法預先估計齣方位角來縮小譜搜索空間,降低MUSIC算法的運算量。實驗結果錶明,該方法在保證定位精度的同時,可以大大地降低運算量,對工程應用具有一定的參攷價值。
기우MUSIC산법적성원정위기술구유흔고적고계정도급은정성,산법적운산량주요집중재보수색부분。가이통과시연고계성원정위산법예선고계출방위각래축소보수색공간,강저MUSIC산법적운산량。실험결과표명,해방법재보증정위정도적동시,가이대대지강저운산량,대공정응용구유일정적삼고개치。
Speech source localization technology based on MUSIC algorithm has high estimation accuracy and stability, and the computational complexity of the algorithm is mainly concentrated in the process of the spectrum searching. Search space of spectrum can be reduced by the estimation of azimuth through the delay estimation speech source localiza-tion algorithm. As a result, the amount of computation of the MUSIC algorithm can be reduced. Experimental results show that this method can drastically reduce the amount of computation, and ensure the accuracy of localization. In the same time, this method is valuable for engineering applications.