| 一种改进的双重频退速度模糊方法 |
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| 引用本文： | 柏晓锁,朱文剑.一种改进的双重频退速度模糊方法[J].航空精密制造技术,2009,45(6). |
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| 作者姓名： | 柏晓锁 朱文剑 |
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| 作者单位： | 1. 中船重工第七二四研究所,南京,210003
2. 南京大学大气科学学院,教育部国家中尺度灾害性天气重点实验室,南京,210093 |
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| 摘 要： | 本文分析了双重复频率退模糊方法的局限性和误差成因,提出了一种统计求解方法进行速度退模糊.此方法同传统方法的差异在于,其首先对Nyquist数进行估计,再进行退模糊处理.理想实验和在中频相参多普勒天气雷达上的实际结果分析均表明,改进的方法具有更好的解速度模糊性能,且具有较高的实效性.
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| 关 键 词： | 中频相参 多普勒 双重频 速度模糊 |
Modification Method of Dual Pulse-repetition Frequency for Unambiguous Velocity |
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| BAI Xiao-suo,ZHU Wen-jian.Modification Method of Dual Pulse-repetition Frequency for Unambiguous Velocity[J].Aviation Precision Manufacturing Technology,2009,45(6). |
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| Authors: | BAI Xiao-suo ZHU Wen-jian |
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| Abstract: | This study investigated the limitations and error sources of the traditional dual pulse repetition frequency (dual-PRF) technique for extension of the unambiguous velocity on IF (intermediate-frequency) coherent Doppler weather radars. A statistical method was proposed to extend the unambiguous velocity by estimating Nyquist number. Both the ideal experiment and practical application indicated the method was more accurate and effective in application. |
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| Keywords: | intermediate-frequency coherent Doppler dual pulse-repetition frequency velocity ambiguity |
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