Application of Multi-filter in Processing of Data Received from Three-dimension Digital Compass
Zhongming Pan · Modern Electronics Technique · 2008
In the processing of three-dimension compass transmits bearing data through a long distance,some noise to the measurement data can be got.The noise consists of Gauss noise and pulse noise as well.The noise restraining method introduced in this paper is filtering the pulse noise first by a nonlinear median filter,and then smoothing the filtered data by a FIR low-pass filter.Comparing the results coming out from a conventional linear filter,the introduced filtering method is much better.