| 利用卡尔曼平滑技术改善数字锁相环抗噪声性能 |
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| 引用本文： | 陈明. 利用卡尔曼平滑技术改善数字锁相环抗噪声性能[J]. 北京邮电大学学报, 1990, 13(1): 15 |
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| 作者姓名： | 陈明 |
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| 作者单位： | 北京邮电学院无线电工程系 |
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| 摘 要： | 本文探讨了利用推广的卡尔曼平滑技术改善数字锁相环在角度调制系统中的抗噪声性能的方案。文章从系统的状态空间模型出发,导出了一种改进型的数字锁相环的模型以及一阶环的性能分析.结果表明,改进模型虽然引入了固定的时延,但其抗噪声的性能得到了明显的改善.
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| 关 键 词： | 锁相接收机 数字锁相环 抗噪声性能 |
Improvement of Anti-noise Performance of DPLL by Kalman Smoothing Technology |
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| Chen Ming. Improvement of Anti-noise Performance of DPLL by Kalman Smoothing Technology[J]. Journal of Beijing University of Posts and Telecommunications, 1990, 13(1): 15 |
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| Authors: | Chen Ming |
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| Abstract: | An anti-noise scheme of digital phase-locked loops(DPLL)in angle modulated system using the extended Kalman technology is studied in this paper.A modified model of DPLL and its performance in first order condition are derived based on the model of system state space.It shows that though the modified model leads to a fixed time delay,its anti-noise performance is improved apparently. |
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| Keywords: | phase-locked receiver digital phase-locked loops anti-noise performance |
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