高效提升小波的电能质量暂态信号分析
Power System and Clean Energy(2011)
Abstract
由于小波变换的空间局部化性质,其在电能质量的暂态信号分析上得到了广泛应用。然而由于连续小波变换、离散小波变换运算量过大,不是很适合片上实现,且实时性问题没有得到很好的解决。结合提升小波变换理论,介绍了一种只需移位和加法的提升滤波器,易于暂态信号分析的微处理器实现。仿真结果表明,所采用方法实时性强,适合暂态信号分析。
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Key words
wavelet transform,power quality,lifting filter,transient signals
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