| A／D转换芯片ADS1211在小波去噪电路中的应用 |
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| 引用本文： | 张红剑.A／D转换芯片ADS1211在小波去噪电路中的应用[J].电子工程师,2009(12):44-46. |
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| 作者姓名： | 张红剑 |
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| 作者单位： | 武汉大学珞珈学院,湖北省武汉市430064 |
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| 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。
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| 关 键 词： | 小波 去噪 ADS1211 TMS320F2812 |
Application of ADS1211 to Noise Removing Circuit through Wavelet |
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| ZHANG Hongjian.Application of ADS1211 to Noise Removing Circuit through Wavelet[J].Electronic Engineer,2009(12):44-46. |
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| Authors: | ZHANG Hongjian |
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| Affiliation: | ZHANG Hongjian (Luojia College, Wuhan University, Wuhan 430064, China) |
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| Abstract: | 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. |
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| Keywords: | wavelet noise removing ADS1211 TMS320F2812 |
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