基于传声器阵列的声源定位

【实例简介】
基于传声器阵列的声源定位 基于传声器阵列的声源定位 基于传声器阵列的声源定位
oudspeakeo And MicrophonE Dl (6.) (9) TDOA sp-arg min J, (s) (10) D, s) (LI) D:, s) R, Xsin 8-0[(mn,m2), S) R 4.2 N+1 r;=(x,y,z;)(i=0,…,N) 4.1 0) TDOA R:R。R=||=Vx++2,R=|:|= var a ty+2 (5) Ir-TI(m vari: (5) d=D-D n.. n (0),…,N),D。=R D=d+R l+R)=D=(7-,)(-r,)=R1-2r+R (12) R 2R do -2r, r=0, d o Tpoa-arg min jTDoa(s) (6) (12) E=R - r, r (13) (2 R J(s)= ∑ 6-6[( (7) E=6-2Rd-2S7 (14) Dar 6 R-d d SDOA-arg mIn JDoa (8 o 2 6 1ar(6.)= c Xvar(T) [(m1,m2),s R VIv 4N ma-m2 xsin(0) (14) R R TDOA TDOA r=1s(8-2Rd),(14) (3)J sWs) Sw,w 14 R 40521 o1994-2012ChinaAcademicJournalElectronicPublishinghoUse.Allrightsreservedhttp://www.cnki.net odspeaker Amd Microphone 4.3 07 06 05… TDOA 山12 sin(y)sin(v2 “----1-+ sin(v1-v2 D.1 (4 cos(y, (15) sin(-vla ---- -----1--1--1-+-----1--1+- 0.4 0501001502002503003504004505001 采样点 (延迟=10个采样点 ) (a)声源和阵列呈509角 do di2 0.7 0.6H…2…- --÷ 0.3 02 …------}----r… 0 -1- -- -"---------1-- 图14传声器组的声源定位空间几何图 0.2 0,3 050100150200250300350400450500 采样点 48 kH (延迟=6个采样点 50° (b)声源和阵列呈110°角 16 b 图2基于互功率谱相位加权(CP)的声延 l024 ( Hanning) 传声器1和4的互相关函数退估计的 344 ( CSP) TDOA TDOA TDOA TDOA 50 110 TDOA/ 10 TDOAZ 10.76 5.73 22 2004-05 o1994-2012ChinaAcademicJournalElectronicPublishingHouse.Allrightsreservedhttp://www.cnki.net oudspeakeo And MicrophonE 1002-86842004)05-0023-02 Hi-Fi King 60% (shaped speakers)o AV-800 Kow wah Bcst)上 lectronic Fty Co CAV Audio( guangzhou )Co. Ltd Hi-Fi 2) (textures) Kingtec (matte silver finish) (slim stands) Winsun with Passive Microphone array, Ph D thesis, 2001 TDOA [4] Charles H. Knapp, G. Clifford Carter. ' The Generalized correlation Method for Estimation of time delay Ieee 110 TransacTion on AcousTics, Speech and Signal Processin 55.33 111.00° 1976.24(4):320-327 5M. Omologo, P. Svaizer. Use of Crosspower-Spectrum 50° Phase in acoustic event location ieee Transaction on peech and Audio Processing, 1997, 5(3): 288-292 Enzo mumolo massimiliano nolich, G elli. a gorithms for Acoustic Localization Based on Microphone [1] M. S. Brandstein. A Framework for Speech Source Lo- Array in Service Robotics, Robotics and Autonomous 2003,42:69-88 calization Using Sensor Arrays, Ph. D thesis, 1995 [2] Michael S. Brandstein, Harvey Silverman. A Practical [7] Dirk Bechler, Kristian Kroschel. Considering the second Peak in the GCC Function for Muitil-source tDoa esti Methodology for Speech source Localization with Micro- phone Arrays. Computer Specch and Language, 1997 Ination with a Microphone Array. Inlernlalional Workshop on Acoustic Echo and Noise Control (IWAENC2003 (I1),91-126 Kyoto, 2003 3] Yiteng Huang. Real-time Acoustic Source Localization ]2004-03-10 204023 o1994-2012ChinaAcademicJournalElectronicPublishinghoUse.Allrightsreservedhttp://www.cnki.net 【实例截图】
【核心代码】