1. The principal of wavelet denoising is introduced and the replicability of GPS multipath effect in dynamic environment is discussed firstly.
   介绍了小波滤波去噪的原理并讨论在动态环境下GPS多路径效应的重复性问题。
2. This method is not only less than Tree-Adapted Wavelet Shrinkage (TAWS) method in operation amounts but also excellent in image denoising results and reservation of singularity information.
   该算法不仅减少了运算量，而且在消噪和保留奇异点信息方面也取得了较好的效果。

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