一种块处理模式数字滤波器的DSP实现

索亮, 梁芳

索亮, 梁芳. 一种块处理模式数字滤波器的DSP实现[J]. 应用光学, 2011, 32(2): 206-210.
引用本文: 索亮, 梁芳. 一种块处理模式数字滤波器的DSP实现[J]. 应用光学, 2011, 32(2): 206-210.
shu
SUO Liang, LIANG Fang. AImplementation of a block processing mode of digital filter on DSP[J]. Journal of Applied Optics, 2011, 32(2): 206-210.
Citation: SUO Liang, LIANG Fang. AImplementation of a block processing mode of digital filter on DSP[J]. Journal of Applied Optics, 2011, 32(2): 206-210.
shu

一种块处理模式数字滤波器的DSP实现

  • 中北大学信息探测与处理技术研究所,山西太原030051

详细信息
    通讯作者:

    索亮(1984-)，男，湖北荆州人，中北大学信息与通信工 程学院硕士研究生，主要从事基于嵌入式传感器阵列信息处理研究工作。

  • 中图分类号:  TN61172

AImplementation of a block processing mode of digital filter on DSP

  • Institute of Capturing &Processing Technology,North University of China,Taiyuan030051,China

摘要

    摘要
  • 摘要: 对称FIR(有限冲激响应)滤波器的严格的线性相位特性和系统稳定性在数据传输、图像处理等领域得到了广泛的应用。基于单点处理模式的传统数字滤波器能实时处理点信号，但在处理图像、语音等帧信号时，速度较慢，实时性不强。针对这个问题提出了块处理模式的解决方案。通过分析FIR滤波器的原理，设计出基于块处理模式的对称FIR滤波器，并在TMS320C5510芯片中实现。介绍了基于双指针循环寻址的滤波算法，并给出了相应的主要程序。计算机试验仿真表明块处理模式方案提高了帧信号的处理速度，滤波性能良好。
    Abstract: Symmetric finite impulse response (FIR) filter with astrictly linear phase characteristics and system stability is widely used in data transmission, image processing and other fields. Conventional digital filter based on single-point processing mode can process point signal in real-time. H owever, its processing speed is slow, and real-time performance is not very good when dealing with images, or voice frame signals. This paper proposes a block processing model to solve this problem. By analyzing FIR filter theory, a symmetric FIR filter was designed based on block processing mode, and implemented in the TMS320C5510 chip (a DSP chip). The filtering algorithm based on two-pointerscircular addressing was introduced, and the main program was given. Computer simulation shows that the block processing mode of the program significantly improves the processing speed of frame signal, and filtering performance is satisfactory.
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  • ［1］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，2008.ZHAO Hong-liang, BU Fan-liang, HUANG He-song, et al. TMS320C55x DSP application system［M］.Beijing: Beijing University of Aeronautics and Astronautics Press, 2008.(in Chinese)

    ［2］SEN M,KUO B H,LEE.实时数字信号处理［M］.卢伯英, 译.北京：中国铁道出版社，2005.SEN M,KUO B H,LEE. Real-time digital signal processing［M］. Translated by LU Bo-ying. Beijing: China Railway Publishing House, 2005. (in Chinese)

    ［3］杨健，张慧慧.基于DSP的嵌入式数采系统滤波算法设计与实现［J］.制造业自动化，2006,28(12):30-32.YANG Jian，ZHANG Hui-hui. Embedded DSP-based data acquisition systems filter design and implementation［J］. Manufacturing Automation, 2006,28(12):30-32. (in Chinese with an English abstract)

    ［4］赵红怡.DSP技术与应用实例［M］.北京：电子工业出版社,2007.ZHAO Hong-yi. DSP technology and applications［M］. Beijing: Publish House of

     Electronics Industry, 2007. (in Chinese)

    ［5］王华，张健.DSP原理及其C编程开发技术［M］.北京：电子工业出版社.2005.WANG Hua, ZHANG Jian. DSP theory and C programming technology［M］. Beijing: Publish House of Electronics Industry, 2005.(in Chinese)
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出版历程
  • 刊出日期:  2011-03-14

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