一种基于DSP的声学信号采集系统设计  

An acoustic signal data acquisition system based on DSP

作　　者：阮志康[1] 曹广忠[1] 

机构地区：[1]深圳大学工程技术学院,广东深圳518060

出　　处：《仪器仪表用户》2006年第5期45-46,共2页Instrumentation

基　　金：国家自然科学基金资助项目(60204013);广东自然科学基金资助项目(5010197;000845);深圳市科技局基金资助项目

摘　　要：为了快速采集并借助专用芯片对信号进行实时处理,设计并实现了一种以TI公司高效率、低功耗的数字信号处理器TMS320VC33为核心的信号采集系统。它能够实时获取声学信号,能够实现各种灵活多变的信号处理算法。采用即插即用的USB通信接口,能够以1MB／s快速传输数据,完全满足声学／音频信号的采集密度要求。该设计方案电路精简,可靠性好,具有一定的通用性。实验证明:系统做为采集设备可以独立工作,也可以结合LabVIEW应用于虚拟仪器。For quick acquisition and processing of acoustic signal via special chip, developed a acoustic signal collector & analyzer system based on TMS320VC33,which is an efficient and low power comsuming DSP of TI Corporation. The system Is suitable for data acquisition and implementing kinds of different DSP algorithms.The integration of USB interface makes data transfer rate up to 1MB/s and the system portable for using. The electrical circuit is concise but reliable.lt may be widely used especially in acoustic signal concerned filed. It has been proved that the system can work as a collector device alone, or as a part of virtual device integrating with LabVIEW software.

关 键 词：DSP USB 信号采集系统 

分 类 号：TP29[自动化与计算机技术—检测技术与自动化装置]