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基于TMS320VC33的指向性扬声器的设计 被引量：2

Design of Directional Loudspeaker Based on TMS320VC33
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摘要 以TMS320VC33数字信号处理器为核心设计了一种指向性扬声器。在对指向性扬声器工作原理进行简要介绍的基础上,给出了系统硬件设计方案,分析讨论了失真预补偿、载波信号产生、幅度调制等算法在DSP芯片上的实现方法。该设计能够将通常采用模拟电路实现的指向性扬声器中的主要信号处理模块集中在一片TMS320VC33芯片上实现,具有精度高、稳定性好、成本低等优点。 A directional loudspeaker based on the TMS320VC33 digital signal processor is presented in the paper. On the basis of introduction to the principle of the directional loudspeaker, the scheme of the system＇s hardware is described, and the algorithms of distortion pre-compensation, carrier generator and amplitude modulation applied to the TMS320VC33 are discussed. The key signal processing modules realized normally by the analogue electronic circuits are implemented on one TMS320VC33 chip. The system has some advantages, such as low cost, good stability and high accuracy.
作者 赵洪亮 朱海生 孙西瑞
机构地区 山东科技大学信息与电气工程学院 山东科技大学机电工程系
出处 《山东科技大学学报（自然科学版）》 CAS 2008年第6期72-75,共4页 Journal of Shandong University of Science and Technology(Natural Science)
基金 泰安市科技发展计划项目:指向性扬声器的研制
关键词 数字信号处理器 指向性扬声器 声波束 失真预补偿 幅度调制 digital signal processor directional loudspeaker audio beam distortion pre-compensation amplitude modulation
分类号 TP391 [自动化与计算机技术—计算机应用技术]
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参考文献15

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共引文献23

同被引文献12

  • 1陈敏,徐利梅,黄大贵,张德银.声频定向扬声器的研究进展[J].电声技术,2006,30(11):17-22. 被引量：21
  • 2赵洪亮,卜凡亮,黄鹤松,等.TMS320C55x DSP应用系统设计[M].北京:北京航空航天大学出版社,2010.
  • 3Westervelt P J. Parametric acoustic array[J]. Jour- nal of the Acoustical Society of America, 1963, 35 (4):535-537.
  • 4姬培峰.指向性声源的理论与实验研究[D].青岛:山东科技大学信息与电气工程学院,2005.
  • 5Karnapi F A, Gan W S, Chong Y K. FPGA imple- mentation of parametric loudspeaker ystem[J]. Mi- croprocessors and Mierosystems, 2004, 28 (5/6) : 261-272.
  • 6Liu Shanmei, Yao Wei, Meng Jun, et al. Hardware design of signal processing for a novel audio beam loudspeaker based on DSP[C]//IEEE Conference on Industrial Electronics and Applications.[S. 1. ]: IEEE, 2006:1570-1573.
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  • 8Texas Instruments Company. TLV320AIC23B stereo audio CODEC, 8-to 96-kHz, with integratedheadphone amplifier[S]. Texas, America: Texas In- strument Incorporation, 2004.
  • 9Texas Instruments Company. tra-low power, voltage output verters[S]. Texas, America: corporation, 2007. DAC8831 16-bit, ul- digital-to-analog con- Texas Instrument In-.
  • 10Texas Instruments Company. TMS320C55x DSP li- brary programmer' s reference[S]. Texas, America : Texas Instrument Incorporation, 2009.

引证文献2

山东科技大学学报（自然科学版）
2008年 第6期

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