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| Self-calibration method of channel amplitude of HF ground wave radar based on sea echo |
| Yang Shaolin; Ke Hengyu; Tian Jiansheng; Wu Shicai; Yang Zijie |
| College of Electronic Information Wuhan University Wuhan 430072 China |
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Abstract A software self-calibration method of the channel amplitude of HF ground wave radar based on the received sea echo data is developed in this paper, in accordance with the characteristics of sea echo and the actual performance of the Ocean State Measuring and Analyzing Radar (OSMAR2000). The method does not need auxiliary signal source and can real-time calibrate channel amplitude for every range cell. Using the method, the radar system can give out warning information in the case of channel failure. The quality of spatial spectra improves much after channel amplitude calibration by the method. Some processing results of the OSMAR2000 field measurement and their comparison are illustrated in this paper.
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Received: 02 March 2001
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2002, Vol. 24 
