摘要
三维电子罗盘在长距离数据传输过程中,将受到外界噪声的干扰。该噪声不仅含有高斯噪声,还含有脉冲噪声。介绍一种抑制噪声干扰的复合数据滤波方法,即先利用一种非线性滤波器——中值滤波器,消除脉冲噪声,然后再利用FIR低通滤波器,对其进行平滑处理。与传统的直接采用线性滤波器的滤波结果相比较,该方法的滤波效果更为理想。
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.
出处
《现代电子技术》
2008年第22期148-150,共3页
Modern Electronics Technique
