| 软件锁相环的设计与应用 |
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| 作者姓名： | 屈强 刘东华 杨君 杜汪洋 |
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| 作者单位： | 装备指挥技术学院研究生院 北京101416(屈强，杨君，杜汪洋)，中国人民解放军61226部队 北京100058(刘东华) |
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| 摘 要： | 根据虚拟无线电技术的特点和锁相环的基本原理,提出一种适于计算机软件化实现的锁相环数学模型,分析不同参数对锁相环捕获和跟踪性能的影响,得出不同情况下参数设定的基本准则。计算机仿真结果表明,软件锁相环在加性高斯白噪声信道下具有较好的捕获与跟踪性能。最后提出软件锁相环在测控系统中实现信号实时处理的优化方法。
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| 关 键 词： | 虚拟无线电 软件锁相环 鉴相器 环路滤波器 压控振荡器 |
Design and Application of Software Phase Lock Loop |
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| Authors: | Qu Qiang Liu Donghu Yang Jun Du Wangyang |
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| Abstract: | According to the characteristics of the Virtual Radio technology and the basic theory of the Phase Look Loop(PLL),this paper puts forward the mathematical model of the PLL which is suitable for software realization by the computer.In this paper,the influences of the parameters to the capture performance and the tracking performance are analyzed,and the basic principle of the parameter setting in different conditions is given.The results of the simulation prove that the capture performance and the tracking performance of Software PLL in Additive White Gaussian Noise are good.At the last of the paper,the optimized method of the PLL signal real-time processing in the Tracking,Telemetering and Control System is presented. |
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| Keywords: | Virtual radio Software PLL Phase detector Loop filter Voltage control oscillator |
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