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子波变换现已成为一种重要的信号处理方法.该文提出一种以TI公司DSP(TMS320C30)为基础的一维正交离散子波变换系统的实现方法,用该系统实现 MALLAT 正交子波快速分解与重构算法,并详细介绍了该系统的电路设计原理和相应的软件流程.测试结果表明该系统重构信号的绝对误差小于10~( －3).“,”The wavelet transform has been an important method for sigh processing. In this paper, a DSP-based system (Texas Instrments’ TMS320C30) for the 1 ~D orthonormal discrete wavelet transform (DWT) was preseented. The l--D orthonormal DWT was calculated using Mallat’s decomposition and reconstruction algorithm. The principal of the implementation of system, the configuration of circuits, the circuit’s design mehtod of each section and the software flowchart were described in this paper. It has been tested that the adsolute errors of reconstructed signal were less than 10~-3.