| 相参脉冲序列多普勒变化率的一种快速高精度测量方法 |
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| 引用本文： | 冯道旺,周一宇,李宗华.相参脉冲序列多普勒变化率的一种快速高精度测量方法[J].信号处理,2004,20(1):40-43. |
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| 作者姓名： | 冯道旺 周一宇 李宗华 |
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| 作者单位： | 国防科技大学电子科学与工程学院,湖南,长沙,410073 |
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| 摘 要： | 雷达信号中的多普勒变化率信息的估计可以获得运动目标的加速度信息。但由于这一信息非常微弱,且脉冲信号的持续时间很短,多普勒变化率的精确测量也十分困难。本文利用了脉冲载频之间的相参特性,等效地延拓了信号的有效观测时间,推导出一种快速而精确的算法。数值仿真证明了使用该方法可以精确快速地估计信号中的多普勒变化率。
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| 关 键 词： | 多普勒变化率 相参信号 参数估计 |
| 修稿时间： | 2003年4月28日 |
A Fast and Accurate Estimator for Doppler Rate-of-Change with the Coherent Pulse Train |
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| Feng Daowang Zhou Yiyu Li Zhonghua.A Fast and Accurate Estimator for Doppler Rate-of-Change with the Coherent Pulse Train[J].Signal Processing,2004,20(1):40-43. |
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| Authors: | Feng Daowang Zhou Yiyu Li Zhonghua |
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| Abstract: | The Doppler Rate-of-Change in the received radar signal reflects the information of target's acceleration. While the information is quite difficult to estimate since it is very subtle and the pulse duration is very short. In this paper, a fast but accurate estimator is developed to cope with this hard task. By exploiting the coherent property of pulse train, the observation time is extended and so the estimation accuracy improved greatly. The simulation results prove that our algorithm is feasible and efficient. |
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| Keywords: | Doppler Rate-of-Change Estimation Coherent Signal |
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