陕西师范大学学报:自然科学版
陝西師範大學學報:自然科學版
협서사범대학학보:자연과학판
Journal of Shaanxi Normal University: Nat Sci Ed
2012年
3期
37-41,45
,共6页
四元方阵%虚拟仪器%声源定位%时延估计
四元方陣%虛擬儀器%聲源定位%時延估計
사원방진%허의의기%성원정위%시연고계
4-elements square array%virtual instrument%sound source location%time delay estimation
基于平面四元方阵三维声响定位模型和互功率谱相位时延估计算法,按照虚拟仪器的设计理论,采用研华PCI—1714数据采集卡进行瞬时声响检测、激励及信号采集,由LabVIEW和Matlab混合编程进行系统控制,设计了四元同步实时声响定位系统.结果表明:该系统对瞬时声响的定位速度较快,精度理想,能进行有效实时跟踪定位.
基于平麵四元方陣三維聲響定位模型和互功率譜相位時延估計算法,按照虛擬儀器的設計理論,採用研華PCI—1714數據採集卡進行瞬時聲響檢測、激勵及信號採集,由LabVIEW和Matlab混閤編程進行繫統控製,設計瞭四元同步實時聲響定位繫統.結果錶明:該繫統對瞬時聲響的定位速度較快,精度理想,能進行有效實時跟蹤定位.
기우평면사원방진삼유성향정위모형화호공솔보상위시연고계산법,안조허의의기적설계이론,채용연화PCI—1714수거채집잡진행순시성향검측、격려급신호채집,유LabVIEW화Matlab혼합편정진행계통공제,설계료사원동보실시성향정위계통.결과표명:해계통대순시성향적정위속도교쾌,정도이상,능진행유효실시근종정위.
Based on the 4-elements plane square array localization model and the phase time delay estimation algorithms of cross--power spectrum, a real time synchronizing sound source location system is designed with the virtual technology. The system is programmed by mixing the Matlab into the LabVIEW. A multifunctional data collect card(Advantech PCI--1714) is used as the hardware platform for instantaneous sound detection and high speed sound data acquisition . The locatable speed and precision of this system is preferable.