The feasibility for the Wavelet Transformation Algorithm (WTA)to detect singularity is analyzed theoretically. Choice of wavelet basis, Mallat algorithm and the improvement of it are discussed, and the steps of implement of the algorithm are given out in this paper. What's more,this algorithm is proved to be able to applied in high-precision pulse laser ranging by experimental observations and data analysis.%从原理上分析了小波变换算法检测信号奇异点的可行性,介绍了Mallat算法及其改进、小波基的选取等内容,并给出了算法的实现步骤,还通过实验现象和数据分析证明,该算法可应用于高精度脉冲激光测距中.
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