摘要
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.
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.
出处
《陕西师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2012年第3期37-41,45,共6页
Journal of Shaanxi Normal University：Natural Science Edition
基金
国家自然科学基金资助项目(10974128)
陕西省自然科学基金资助项目(SJ08A03)
关键词
四元方阵
虚拟仪器
声源定位
时延估计
4-elements square array
virtual instrument
sound source location
time delay estimation
