摘要
小波去噪是建立在小波变换基础上的一种滤波方法,选择不同的小波函数和分解层数可以调整滤波器的特性。小波去噪具有结构简单和性能稳定的特点。为了获得随钻测量中的解码数据,选用高精度A/D转换芯片ADS1211,以TMS320F2812作为控制核心,设计实现了数据采集电路和小波去噪算法。通过波形对比证实了小波去噪的实际效果。
Noise removing by wavelet is a filter based on wavelet transform. The performance of filter can be adjusted by selecting different wavelet functions and dividing layers, which makes it a simple structure and good behavior. In this paper, to obtain decoded data from MWD （Measurement while drilling） the sampling circuit is designed by selecting high resolution A/D ADS1211 and microcontroller TMS320F2812. The algorithm of de-noising by wavelet is implemented and waveform comparison confirms the effect.
出处
《信息化研究》
2009年第12期44-46,64,共4页
INFORMATIZATION RESEARCH
