CAJ | 학술논문

　　对染噪信号进行降噪处理是信号处理的重要环节。针对两种经典阈值处理方法的缺陷，引入了一种改进的阈值处理函数。新方法阈值自适应于噪声方差，调整系数自适应于阈值。数值实验表明，该算法对含噪非平稳信号降噪效果明显，适用于遥测非平稳信号的降噪处理。
　　대염조신호진행강조처리시신호처리적중요배절。침대량충경전역치처리방법적결함，인입료일충개진적역치처리함수。신방법역치자괄응우조성방차，조정계수자괄응우역치。수치실험표명，해산법대함조비평은신호강조효과명현，괄용우요측비평은신호적강조처리。
Noise reduction is an important part of the signal processing. A modified threshold processing function is intro?duced to eliminate the defects of the two classical threshold processing methods. The threshold of this new method is adaptive to noise variance and the adjustment coefficient is adaptive to the threshold. The numerical experiments show that the effect of the method is obvious for reducing the noise of the non?stationary signals with noise,and it is applied to the noise reduction processing of telemetry non?stationary signals.