自适应中值滤波在云雷达数据预处理的应用

WANG De-wang; WANG Gai-li

doi:10.3969/j.issn.1001-3806.2012.02.019

为了解决毫米波雷达回波噪声的污染,剔除Ka波段雷达探测数据中的散点噪声,得到雷达真实的探测大气云粒子回波,采用自适应滤波方法,改进并使其适用于Ka波段雷达资料的噪声剔除,同时进行了理论分析和实验论证。结果表明,相对于传统的中值滤波,自适应滤波具有明显的滤波性能,不仅可以剔除噪声,并有效地保留了雷达探测数据的局部细节。

自适应中值滤波在云雷达数据预处理的应用

Corresponding author: WANG Gai-li, wg13111@cams.cma.gov.cn

1. State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing 100081, China;

2. Department of Electronic Engineering, Chengdu University of Information Technology, Chengdu 610225, China

Received Date: 2011-07-01

Accepted Date: 2011-08-02

Available Online: 2012-03-25

Abstract: 为了解决毫米波雷达回波噪声的污染,剔除Ka波段雷达探测数据中的散点噪声,得到雷达真实的探测大气云粒子回波,采用自适应滤波方法,改进并使其适用于Ka波段雷达资料的噪声剔除,同时进行了理论分析和实验论证。结果表明,相对于传统的中值滤波,自适应滤波具有明显的滤波性能,不仅可以剔除噪声,并有效地保留了雷达探测数据的局部细节。

HTML

Reference (13)

[1]	ZHONG L Z.Calibration and capability analysis of china new generation of cloud radar-HMBQ and its preliminary application in retrieving cloud microphysics parameters[D].Nanjing:Nanjing University of Information Science & Technology,2009:25-43(in Chinese).
[2]	BROWNRING D P K.The weighted median filter[J].Communications of the Association for Computing Machinery,1984,27(8):807-818.
[3]	KO S J,LEE Y H.Center weighted median filters and their applications to image enhancement[J].Journal of IEEE Transactions on Circuits and Systems,1991,38(9):984-993.
[4]	SUN T,NEUVO Y.Detail-preserving median based filters in image processing[J].Journal of Pattern Recognition Letters,1994,15(4):341-347.
[5]	HU W,FENG W S,LI Zh Sh.An adaptive median filter with double windows for impulsive Noises[J].Journal of Sichuan University(Engineering Science Edition),2006,38(4):131-135(in Chinese).
[6]	ZHANG X M,XU B Sh,DONG Sh Y.Adaptive median filtering for image processing[J].Journal of Computer-aided Design & Computer Graphics,2005,17(2):295-299(in Chinese).
[7]	JIANG J,JIAO B L.New median filtering method based on statistic analysis[J].Laser Technology,2011,35(1):29-3l(in Chinses).
[8]	KWAN P,KAMEYAMA K,TORAICHI K.On a relaxation-labeling algorithm for real-time contour-based image similarity retrieval[J].Journal of Image and Vision Computing,2003,21(3):285-294.
[9]	WANG J H,LIN L D.Improved median filter using min/max algorithm for image processing[J].Electronics Letters,1977,33(16):1362-1363.
[10]	WEI Y F,DU Zh Ch,YAO Zh Q.Application of median filter in point cloud data pre-processing lidar[J].Laser Technology,2009,33(2):213-216(in Chinese).
[11]	LIU G H,GUO W M.Applicaion of improved arithmetic of median filtering denoising[J].Computer Engineering and Applications,2010,46(10):187-189(in Chinese).
[12]	ZHOU J.The modified algorithms of median filtering applicatied in image processing[D].Beijing:Beijing University of Posts and Telecommunications,2007:19-20(in Chinese).
[13]	WANG X K,LI F.Improved adaptive median filtering[J].Computer Engineering and Applicaitons,2010,46(3):175-176(in Chinses).

自适应中值滤波在云雷达数据预处理的应用

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Proportional views