一种简单的去噪方法
A Simple Denoising Technique
摘要：
低频极低电平信号的测量是一个非常困难的问题，因为环境噪声在该频域中增加，并且很难有效地对其进行滤波。为了抵消这些主要问题，我们提出了一个简单而通用的去噪技术，它混合了传统的反馈技术和噪声估计器的几个功能。作为应用实例，给出了机械振荡器热涨落的大波段测量。这些测量结果表明，所提出的去噪技术易于实现，并给出了良好的效果。
英文摘要：
The measurements of very low level signals at low frequency is a very difficult problem, because environmental noise increases in this frequency domain and it is very difficult to filter it efficiently. In order to counteract these major problems, we propose a simple and generic denoising technique, which mixes several features of traditional feedback techniques and those of noise estimators. As an example of application, large band measurements of the thermal fluctuations of a mechanical oscillator are presented. These measurements show that the proposed denoising technique is easy to implement and gives good results.
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