| 快速小波变换在DSP中的实现方法 |
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| 引用本文： | 姜新华,范征宇.快速小波变换在DSP中的实现方法[J].数据采集与处理,2000,15(2):170-175. |
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| 作者姓名： | 姜新华 范征宇 |
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| 作者单位： | 上海交通大学信息与控制工程系,上海,200240 |
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| 摘 要： | 小波分析是分析非稳定信号的一种非常有泖的方法。Ｍａｌｌａｔ快速算法使得小波分析的广泛应用成为现实。在实时信号分析中，离散小波变换在ＤＳＰ上的有效应用受到了特别的关注。本文简单介绍了ＦＷＴ，详细阐述了在ＤＳＰ上ＦＷＴ的周期性扩展的实现。其中，特别介绍了ＤＳＰ的循环寻址。最后，给出了针对ＴＩ公司的ＴＭＳ３２０Ｃ３Ｘ系列ＤＳＰ的相应的江编代码。
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| 关 键 词： | 小波变换 快速算法 数字信号处理 DSP |
| 修稿时间： | 1999-06-20 |
Implementation of FWT to Digital Signal Processors (DSPs) |
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| Jiang Xinhua,Fan Zhengyu.Implementation of FWT to Digital Signal Processors (DSPs)[J].Journal of Data Acquisition & Processing,2000,15(2):170-175. |
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| Authors: | Jiang Xinhua Fan Zhengyu |
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| Abstract: | The wavelet transformation (WT) is a very powerful tool for the analysis of non stationary signals. The Mallat fast algorithm of WT enables the applications of wavelet transformation. An efficient implementation of the discrete form of the wavelet transform on digital signal processors (DSPs) is especially interesting for the analysis of real time signals. After a short discussion of FWT, the implementation of the periodic extension of the FWT on digital signal processors is described in detail. Within this context, special attention is given to circular addressing of digital signal processors. At last,the corresponding assembly code is described for the digital signal processor TMS320C3X series from Texas Instruments. |
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| Keywords: | wavelet transformation fast algorithm digital signal processor(DSP) |
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