Act as routine dispose signal estimation route to, recursion least square method possess in a position to at approximate time bring relative comparison small error.

作为常规的处理信号估计的方法，递归最小二乘法具有能够在估计的时候产生相对比较小的误差。

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Comparison of the bearing "s early fault and late fault vibration signal decomposed results, proves that WPT diagnosis method used in incipient rolling element bearing fault is effective."

对比了该轴承外圈早期故障和晚期故障的振动信号的小波包分解结果，证明了小波包方法诊断滚动轴承早期故障的有效性。

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To deal with this problem, comparison is made between the empirical mode decomposition(EMD) and the wavelet method in terms of signal trend extraction.

研究了强噪声混合条件下微弱信号的经验模式分解（EMD）问题，提出了一种基于随机共振降噪的EMD分解方法。

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