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Data Processing Method of Posture Correction for Calibration of Sea Clutter Measurement |
Zhang Yu-shi① Yin Ya-lei② Xu Xin-yu② Li Hui-ming② Zhang Zhe-dong② Wu Zhen-sen① |
①(School of Physics Optoelectronic Engineering, Xidian University, Xi’an 710071, China)
②(China Research Institute of Radiowave Propagation, Qingdao 266107, China) |
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Abstract The external calibration of shore-based sea clutter measurement radar faces the problems with influence of sea wave motion. This paper proposes a posture correction method based on a coordinate transformation. The proposed method which combines the radar signal acquisition process and radar antenna direction factor, can effectively solve the effect of sloshing on the accuracy of the external calibration. Using the external calibration trial data collected by L-band shore-based sea clutter measurement radar, the experimental results are analyzed and compared with posture correction improvement on the calibration accuracy. The results show that the proposed method can greatly improve the accuracy of the calibration and is important to provide technical support for universal adaptability of the real sea clutter data.
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Received: 19 May 2014
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Corresponding Authors:
Zhang Yu-shi
E-mail: zhang10695@126.com
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