摘要
在地球物理的瞬变电磁测量工作中 ,由于工频干扰的影响 ,使得测量精度很大降低 ;在工频干扰严重的情况下 ,可造成有效信号的失真 ,给数据处理和解释带来麻烦。本文对工频干扰问题进行了研究 ,提出了一种软、硬件相结合的自适应滤波方法 ,对于消除工频干扰、提高测量精度是非常有效的。
As influenced by operating frequency disturbance accuracy in transient eletromagnetic measurement is lowered heavily. Under the condition of serious disturbance distortion of effective signal and troubles in data processing and intepretation may happen. An adaptive filtering method to eliminate the operating frequency disturbance is proposed herein which is verified to be very effective to enhance the measurement precision.
出处
《工程勘察》
CSCD
北大核心
2000年第6期35-37,22,共4页
Geotechnical Investigation & Surveying
基金
陕西省自然科学基金!(编号 :97D9)
西安交通大学青年科学基金资助
关键词
瞬变电磁测量
工频干扰
自适应滤波
地球物理
transient electromagnetic measurement
operating frequency disturbance
adaptive filtering
