基于PCM2906B的虚拟信号分析仪的设计  

Design of virtual signal analyzer based on PCM2906B

作　　者：裴桂玲[1] 王亚南[2] 

机构地区：[1]泰山职业技术学院,山东泰安271000 [2]山东科技大学信息与电气工程学院,山东青岛266510

出　　处：《现代电子技术》2013年第16期95-97,共3页Modern Electronics Technique

摘　　要：针对目前市场上出现的虚拟仪器价格过于昂贵,研发了一种高性价比的虚拟信号分析仪。采用16bit STE REO AUDIO CODEC PCM2906B为硬件基础,结合C#软件开发,整体结构由通用PC机和虚拟仪器卡两部分组成,二者通过USB接口进行信号通信。信号的采集和输出由虚拟仪器卡完成,信号的处理由通用PC机通过软件进行,PC软件利用面向对象的C#语言开发。该虚拟信号仪能在大幅降低成本的同时实现了信号发生器、示波器、记录仪、频谱分析、时频分析等多种功能。该仪器具有多种功能,硬件功耗低,成本低廉,性价比高,可以在教学和实验中得到广泛的推广和应用。A high cost-performance virtual signal analyzer was developed because the current price of virtual instruments available in the market is too high.Based on the hardware of 16-bit stereo audio codec PCM2906B and the software of C#,its overall structure is made up of two parts：PC and virtual instrument card.These two parts communicates via USB interface.The signal acquisition and output are completed by the virtual instrument card.The signal processing is executed by general PC software,which is developed in object-oriented C# language.The virtual signal analyzer can reduce the costs dramatically and realize many functions which are usually realized by signal generator,oscilloscope,recorder,spectrum analyzer,time-frequency analyzer and so on.The instrument has many functions,low power consumption,low cost,high cost performance.It can be promoted and applicated in teaching and experiments.

关 键 词：PCM2906B 虚拟信号分析仪 C# USB接口 

分 类 号：TN911-34[电子电信—通信与信息系统]