摘要
在对环境或者电子设备的电磁泄漏信号检测中,由于混杂有噪声,使得信号检测和后面的信号处理与分析产生误差,甚至错误。文中针对带宽很宽的噪声,传统的傅立叶变换消噪解决不了,采用了小波变换中的软阈值消噪,可以有效的解决改问题[1]。
In the detection of electromagnetic signal leakage to the environment or the electronic equipments, because of a mixed noise, the signal detection makes the signal processing and analysis of errors and even mistakes. For a wide bandwidth of the noise, this paper Uses the soft threshold de-noising of wavelet transform to solve the problem which can＇t be solved by the traditional Fourier transform De-noising method.
出处
《电子质量》
2008年第10期14-15,共2页
Electronics Quality
关键词
电磁泄漏
信号处理
小波变换
electromagnetic signal leakage
signal processing
wavelet transform
