摘要
本文研究了空间分布不均匀信号和白噪声在小波变换下的不同特性,提出了一种新的基于小波变换的白噪声消除方法。这种方法可以对非平稳信号进行消噪处理,解决了传统信号处理方法对非平稳信号的局限性,并且有快速算法能够加以实现。仿真结果证明这种方法具有很好的去噪效果。
This paper reviews different properties of non-stationary signals and white noise after wavelet decomposition, and presents a new method of white noise reduction based on wavelet transform which can be realized with fast algorithm. The simulation results show that the method can be applied to white noise reduction of non-stationary signals efficiently.
基金
国家教委"跨世纪优秀人才计划"基金
