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S-Band Doppler Wave Radar System

School of Electronic Information and the Collaborative Innovation Center for Geospatial Technology, Wuhan University, Wuhan 430072, China
School of Electronic Information, Wuhan University, Wuhan 430072, China
Author to whom correspondence should be addressed.
Academic Editors: Francesco Serafino and Xiaofeng Li
Remote Sens. 2017, 9(12), 1302;
Received: 27 October 2017 / Revised: 8 December 2017 / Accepted: 11 December 2017 / Published: 12 December 2017
(This article belongs to the Special Issue Instruments and Methods for Ocean Observation and Monitoring)
PDF [12676 KB, uploaded 13 December 2017]


In this paper, a novel shore-based S-band microwave Doppler coherent wave radar (Microwave Ocean Remote SEnsor (MORSE)) is designed to improve wave measurements. Marine radars, which operate in the X band, have been widely used for ocean monitoring because of their low cost, small size and flexibility. However, because of the non-coherent measurements and strong absorption of X-band radio waves by rain, these radar systems suffer considerable performance loss in moist weather. Furthermore, frequent calibrations to modify the modulation transfer function are required. To overcome these shortcomings, MORSE, which operates in the S band, was developed by Wuhan University. Because of the coherent measurements of this sensor, it is able to measure the radial velocity of water particles via the Doppler effect. Then the relation between the velocity spectrum and wave height spectrum can be used to obtain the wave height spectra. Finally, wave parameters are estimated from the wave height spectra by the spectrum moment method. Comparisons between MORSE and Waverider MKIII are conducted in this study, and the results, including the non-directional wave height spectra, significant wave height and average wave period, are calculated and displayed. The correlation coefficient of the significant wave height is larger than 0.9, whereas that of the average wave period is approximately 0.4, demonstrating the effectiveness of MORSE for the continuous monitoring of ocean areas with high accuracy. View Full-Text
Keywords: S-band radar; MORSE; microwave ocean remote sensor; coherent method; wave measuring; significant wave height; directional wave height spectrum S-band radar; MORSE; microwave ocean remote sensor; coherent method; wave measuring; significant wave height; directional wave height spectrum

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Chen, Z.; Wang, Z.; Chen, X.; Zhao, C.; Xie, F.; He, C. S-Band Doppler Wave Radar System. Remote Sens. 2017, 9, 1302.

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