Please wait a minute...


Remote Sensing Technology and Application  2008, Vol. 23 Issue (2): 125-129    DOI: 10.11873/j.issn.1004-0323.2008.2.125
Analysing and Processing of Rainfall Observation Datain Wave Monitoring System by Nautical Radar
HAO Yan-ling,TANG Yan-hong,LU Zhi-zhong
(College of Automation,Harbin Engineering University,Harbin 150001,China)
Download:  PDF (1683KB) 
Export:  BibTeX | EndNote (RIS)      

In process of observing ocean wave with nautical radar,the roughness of offing will be changed for emergence of rainfall.So the intensity of echo signal which received from radar will be influenced.In this paper an analyzing and processing method is proposed for rainfall observation data in wave monitoring system by nautical radar.Firstly the statistic characteristic- mean value and variation coefficient of radar echo image are used as classifying criterion to distinguish rainfall and non-rainfall.Then the median filtering algorithm is approached to dealing with rainfall observation data in order to reduce the influence from rainfall.The experimental results indicate that the algorithm proposed in this paper has a good robustness and general performance.

Key words:  Nautical radar      Rainfall      Variation coefficient      Median filtering     
Received:  18 December 2007      Published:  24 October 2011
TP 731.22  
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
Articles by authors

Cite this article: 

HAO Yan-ling,TANG Yan-hong,LU Zhi-zhong . Analysing and Processing of Rainfall Observation Datain Wave Monitoring System by Nautical Radar. Remote Sensing Technology and Application, 2008, 23(2): 125-129.

URL:     OR

[1] Tournadre J,Morland J C.The Effects of Rain on TOPEX/Poseidon Altimeter Data[J].IEEE Transactions on Geoscience and Remote Sensing,1997,35(5):1117-1135.
[2] Moore R K,Mogili A,Fang Y,et al.Rain Measurement with SIR-C/X-SAR[J].Remote Sensing of Environment,1997,59(2):280-293.
[3] Braun N,Gade M,Lange P A.The Effect of Artificial Rain on Wave Spectra and Multi-Polarization X B and Radar Backscatter [J]. International Journal of Remote Sensing, 2002, 23(20):4305-4323.
[4] Zhang R,Zhao Z W,Lin L K.Influences of Rain on Radar's Detection Performance [J].Morden Radar,2007,29(1):51-54.[张蕊,赵振维,林乐科.降雨对雷达探测性能的影响[J].现代雷达,2007,29(1):51-54.]
[5] Borge J C N,Reichert K,Dittmer J.Use of Nautical Radar as a Wave Monitoring Instrument [ J]. Coastal Engineering,1999,37: 331-342.
[6] Gangeskar R.Ocean Current Estimated from X-Band Radar Sea Surface Images [J].IEEE Transactions on Geoscience and Remote Sensing,2002,40(2):783-792.
[7] Ren F A,Shao M H,Sun Y W.The Study of Sea Wave Observed by Shipborne Radar [J]. Acta Oceanologica Sinica,2006,28(5):152-156.[任福安,邵秘华,孙延维.船载雷达观测海浪的研究[J].海洋学报,2006,28(5):152-156.]
[8]    Wang S Y,Liao D G.Nautical Radar and ARPM [M].Dalian:Dalian Maritime Press,2005:2-33.[王世远,缪德刚.航海雷达与ARPM[M].大连:大连海事大学出版社,2005:2-33.]
[9] Yang J S.The Remote Sensing Technique of Ocean Surface Wind Field,Ocean Wave and Internal Wave of Synthetic Aperture Radar [M].Beijing:Ocean Press,2005:18-20.[杨劲松.合成孔径雷达海面风场、海浪和内波遥感技术[M].北京:海洋出版社,2005:18-20.]
[10] Zhang Y J.Image Processing and Analyses [M].Beijing: Tsinghua University Press,1999:82-85.[章毓晋.图像处理和分析[M].北京:清华大学出版社,1999:82-85.]

No Suggested Reading articles found!