Abstract：Aiming at the shortcomings of wavelet threshold denoising method in the field of meteorological instruments,an improved wavelet threshold selection method is applied to improve the threshold function and get better denoising effect.On the basis of previous thresholds,the traditional soft and hard thresholds are modified and the shortcomings of soft and hard thresholds are improved,so as to get a new threshold function.Using Matlab simulation and algorithm's accuracy analysis,it is concluded that the improved wavelet threshold denoising method will achieve higher signal-to-noise ratio and smaller root mean square error,and has a good noise reduction effect.
江虹, 王奉宇, 王新远, 李进. 一种改进的小波阈值去噪方法及在气象仪器领域的应用[J]. 气象水文海洋仪器, 2018, 35(1): 64-66.
Jiang Hong, Wang Fengyu, Wang Xinyuan, Li Jin. An improved wavelet threshold denoising method and its application in the field of meteorological instruments. Meteorological Hydrological and Marine Instrument, 2018, 35(1): 64-66.
2018, Vol. 35 
