The polynomial fitting method is used to eliminate the trend items in the AC signals. The comparison between the original signal and the filtered signal time-domain and frequency charts shows that the trend term is eliminated.

Filename	Size	Update
filter_trendition\filter_trend_part.m	1078	2017-12-07
filter_trendition\不含有趋势项的时域信号.jpg	40674	2010-04-13
filter_trendition\不含有趋势项的频域信号.jpg	27343	2010-04-13
filter_trendition\含有趋势项的时域信号.jpg	37731	2010-04-13
filter_trendition\含有趋势项的频域信号.jpg	25930	2010-04-13
filter_trendition\程序说明.txt	126	2013-05-08
filter_trendition

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