| 扩频通信系统伪码相位跟踪环性能研究 |
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| 引用本文： | 石吉利.扩频通信系统伪码相位跟踪环性能研究[J].航空电子技术,2006,37(4):1-5,22. |
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| 作者姓名： | 石吉利 |
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| 作者单位： | 中国航空无线电电子研究所,上海,200233 |
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| 摘 要： | 在现代通信系统中,对于全数字化扩频接收机来说,由于伪码跟踪环中鉴相器具有非线性特性,所以有可能使扩频通信环路工作在非线性区域。本文分析了一种非相干伪码跟踪环路的线性以及非线性跟踪性能,并得到了环路的收敛域与收敛条件,这些分析结果对环路参数的设计都是至关重要的。
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| 关 键 词： | 扩频通信 数字延迟跟踪环 鉴相器 收敛域 非线性 |
| 文章编号： | 1006-141X(2006)04-0001-05 |
| 修稿时间： | 2006年10月15 |
Research on Performance of an All-Digital Phase-Tracking Loop in Spread Spectrum(SS) Communication System |
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| SHI Ji-li.Research on Performance of an All-Digital Phase-Tracking Loop in Spread Spectrum(SS) Communication System[J].Avionics Technology,2006,37(4):1-5,22. |
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| Authors: | SHI Ji-li |
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| Abstract: | It is difficult for an all-digital receiver operating in non-linear situation to ensure spread spectrum signal tracking precision in modern communication system.A new linear and non-linear mode and the performance of 2st- order DDLL during the PN phase tracking are analyzed in this paper.The algorithm presented in the paper achieved the stable condition and region of 2st-order DDLL.All of these analyses results are very important to design applicable parameters of the loop. |
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| Keywords: | SS communication digital delay-locked Ioop(DDLL) code-phase discriminator stable region non-linear |
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