Weather radar data denoising using improved wavelet threshold method
Peng Zhang, Mingbao Hu, Ning Ma, Chun Lei He · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2007
An improved wavelet thresholding method is applied to denoise weather radar raw data. It used an adjustable thresholding method other than soft or hard thresholding methods. Comparing with median filtering method, the result of this method shows that it can remove the noise from the data and keep the useful infomation well at the same time. It can improve the detection rate and lower the false alarm rate for small scale sever storm. The radar echo maps are also made clearer.