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| 高速8PSK调制信号的频率捕获及跟踪算法研究 | |
| 引用本文： | 李晶,朱江,张尔扬,沈荣骏.高速8PSK调制信号的频率捕获及跟踪算法研究[J].信号处理,2005,21(1):66-69. |
| 作者姓名： | 李晶 朱江 张尔扬 沈荣骏 |
| 作者单位： | 1. 国防科技大学电子科学与工程学院,长沙,410073;西安卫星测控中心,西安,710043 2. 国防科技大学电子科学与工程学院,长沙,410073 3. 解放军总装备部科学技术委员会,北京,100080 |
| 基金项目： | 本课题得到总装备部国防预研基金支持 |
| 摘 要： | 载波频率同步是载波恢复的重要环节之一。本文基于高速8PSK调制信号完成载波频率估计的前提下,提出了一种采用二叉树(Binary Search Tree)频率搜索方法实现捕获及采用平均"滑动窗"递推最小二乘(RLS)一步预测方法实现频率跟踪的算法;并针对此方法进行了理论推导和蒙特卡洛(Monte Carlo)仿真。结果表明,该方法适用于全数字高速数传8PSK调制信号接收系统,同时也可移植、推广至全数字雷达接收机中。 |
| 关 键 词： | 8PSK调制信号 频率捕获与跟踪 数字接收机 |
| 修稿时间： | 2003年5月16日 |
Algorithm for Carrier Frequency Acquisition and Tracking of High-speed 8PSK Modulated Signals |
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| Li Jing Zhu Jiang Zhang Eryang ShenRongjun.Algorithm for Carrier Frequency Acquisition and Tracking of High-speed 8PSK Modulated Signals[J].Signal Processing,2005,21(1):66-69. | |
| Authors: | Li Jing Zhu Jiang Zhang Eryang ShenRongjun |
| Abstract: | The most important section of carrier recovery subsystem is carrier frequency synchronization. An algorithm is proposed in this paper, based on the achievement of frequency estimation for high-speed 8PSK modulated signals, in which Binary Search Tree method is used to achieve the frequency acquistion and average sliding window Recursive Least Square method is used to achieve the frequency tracking. The theory analysis and computer Monte Carlo simulation show that this algorithm can be used in an all-digital receiver of high-speed 8PSK modulated signals, and also can be expanded to an all-degital Readar receiver. |
| Keywords: | 8PSK modulated frequency acquisition and tracking all-digital receiver |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |