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５０Ｈｚ工频及其谐波干扰对瞬变电磁测量精度的影响十分严重，本文提出了消除５０Ｈｚ工频及其谐波干扰的自适应滤波及相关—自适应滤波方法，对于提高测量精度非常有效
The impact of 50Hz power frequency and its harmonic interference on the transient electromagnetic measurement accuracy is very serious. This paper proposes an adaptive filtering and correlation-adaptive filtering method to eliminate the 50Hz power frequency and its harmonic interference, which is very effective to improve the measurement accuracy