| 正弦相位抖动的补偿方法及条件研究 |
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| 引用本文： | 井庆丰,郭庆. 正弦相位抖动的补偿方法及条件研究[J]. 系统工程与电子技术, 2008, 30(8) |
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| 作者姓名： | 井庆丰 郭庆 |
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| 作者单位： | 哈尔滨工业大学通信研究所,黑龙江,哈尔滨,150001 |
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| 摘 要： | 针对Cupo-Gihin对正弦相位抖动自适应补偿系统结构,提出一种对其改进算法.该算法改变了Cupo-Gitlin补偿方法中的LMS算法输入信号,使得补偿算法的相关性更强,并给出了改进方法的补偿步骤,仿真结果表明改进后的算法大大提高了原算法的补偿能力.通过对相位抖动条件的理论分析,得到了相位抖动条件对算法补偿能力的影响,并得到了最佳的补偿条件.结果表明最佳的滤波器抽头数L和参考码元数R值分别为30和50.
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| 关 键 词： | LMS算法 相位抖动 参考码元 |
Modifying of the adaptive compensation method for sinusoid phase jitter and the compensation parameters study |
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| JING Qing-feng,GUO Qing. Modifying of the adaptive compensation method for sinusoid phase jitter and the compensation parameters study[J]. System Engineering and Electronics, 2008, 30(8) |
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| Authors: | JING Qing-feng GUO Qing |
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| Abstract: | A modified structure of Cupo-Gitlin adaptive sinusoid phase jitter compensation system is developed.The input signals of the LMS algorithm in Cupo-Gitlin's method are changed to make the method more pertinent.The implement compensation steps of the modified method are also listed.The simulation results show that the modified method enhances the compensation ability greatly.The effects of the phase jitter parameters are obtained through theoretical analyzing,and the optimum parameters are obtained by simulation.The simulation results illustrate that the optimum value of filter taps number L and pilot symbols number R are 30 and 50,respectively. |
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| Keywords: | 8PSK |
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