基于PCI-1712卡的参量扬声器算法验证平台设计与实现  

Design and implementation of PCI-1712 board-based algorithm verification platform for parametric loudspeaker

作　　者：王磊[1] 陈敏[1] 肖越[2] 李忠涛[1] 

机构地区：[1]电子科技大学空天科学技术研究院,成都610054 [2]电子科技大学电子工程学院,成都610054

出　　处：《声学技术》2011年第5期438-442,共5页Technical Acoustics

基　　金：参量声源非线性信号处理方法研究(60901062)

摘　　要：针对参量扬声器的算法快速验证与开发问题,采用PCI-1712高速数据采集卡作为信号输入/输出设备,以Labview作为算法快速建模与仿真工具,在PC机上设计并实现了参量扬声器的算法快速验证平台。利用该平台,对SSB算法及DSB算法进行了快速验证与开发,发现:在1.5kHz以上频段,SSB算法输出声波的声压级明显大于DSB算法;在2.5kHz以下频段,两者的谐波失真差异较大,而在2.5kHz以上频段,两者的谐波失真较为接近。In this paper,a PC-based quick algorithm verification platform for parametric loudspeaker is designed and implemented to solve the problem of quick-verifying and developing the algorithms for parametric loudspeaker,in which the PCI-1712 high-speed data acquisition board is employed as the signal input/output device and the Labview software is used to realize the quick-modeling and simulation of the algorithms.Moreover,the SSB and DSB algorithms＇ quick-verification and development is implemented of the platform,and the results show： the sound pressure level of SSB algorithm is higher than that of DSB algorithm obviously for the signal frequency above 1.5 kHz;the difference of their harmonic distortion is big for the signal frequency blow 2.5 kHz.but very small above 2.5 kHz.

关 键 词：参数扬声器 算法快速验证平台 PCI-1712高速数据采集卡 SSB算法 DSB算法 

分 类 号：TB64[一般工业技术—制冷工程]