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中文摘要：
在对软阈值和硬阈值去噪方法分析的基础上,提出一种改进的阈值函数,并且对阈值做了适当的调整,克服软阈值和硬阈值去噪方法的缺点.Matlab仿真结果表明,提出的改进算法在信噪比增益和最小均方差方面均优于软阈值和硬阈值去噪方法.该改进方案具有更大的有效性和优越性.
英文摘要：
Based on analysing the methods of the soft and hard threshold denoising, a denosing method with improved thresholding function is proposed and appropriate threshold adjustment is made, so that the shortcomings of the soft and hard threshold denoising can be overcome. Simulation result obtained with Matlab software indicates that the improved threshold denoising method proposed is superior to the method of the soft and hard threshold denoising with respect to the gain in signal-to-noise ratio （SNR） and minimum mean square error （MSE）. The improved method has a greater effectiveness and superiority.
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