• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>2010 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB 2010) >Fast iterative method for joint synchronization based on cyclic training sequence
【24h】

Fast iterative method for joint synchronization based on cyclic training sequence

机译：基于循环训练序列的联合迭代快速迭代方法

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Fast and robust time and frequency synchronization is crucial to wireless digital communications. Conventional synchronization methods usually compromise between estimation range and accuracy, so that multi-stage synchronization is usually required, which greatly limits the synchronization speed. Meanwhile, different non-ideal factors coexist in the received data, causing extra estimation errors, which would degrade synchronization performance. In this paper, an iterative method for joint synchronization based on the cyclically inserted training sequence (TS) is proposed for either continuous or burst block transmission systems. Timing and frequency offsets are jointly estimated and compensated, where the compensated data is used for further estimation. With iterative estimation and compensation, the estimation results for both timing and frequency offsets could asymptotically converge to the best estimation. Also, adjustment of estimation scheme is allowed in each iteration cycle, where estimators with large range are applied firstly to complete coarse estimation and compensation, and then estimators with high accuracy are performed to complete the synchronization. Simulations verify that the proposed iterative method can fulfill fast and robust synchronization with only two cyclic training sequences from adjacent blocks, while attaining high reliability and accuracy.
机译：快速，强大的时间和频率同步对于无线数字通信至关重要。传统的同步方法通常在估计范围和精度之间折衷，因此通常需要多级同步，这极大地限制了同步速度。同时，不同的非理想因素共存于接收到的数据中，从而导致额外的估计误差，从而降低同步性能。本文针对连续或突发块传输系统，提出了一种基于循环插入训练序列（TS）的联合同步迭代方法。定时和频率偏移是联合估计和补偿的，其中补偿后的数据用于进一步估计。通过迭代估计和补偿，时序和频率偏移的估计结果都可以渐近收敛到最佳估计。而且，在每个迭代周期中允许调整估计方案，其中首先应用具有大范围的估计器来完成粗略估计和补偿，然后执行具有高精度的估计器以完成同步。仿真结果表明，所提出的迭代方法仅需相邻块的两个循环训练序列即可实现快速，鲁棒的同步，并且具有较高的可靠性和准确性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号