• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Eurasip Journal on Wireless Communications and Networking >Burst Format Design for Optimum Joint Estimation of Doppler-Shift and Doppler-Rate in Packet Satellite Communications
【24h】

Burst Format Design for Optimum Joint Estimation of Doppler-Shift and Doppler-Rate in Packet Satellite Communications

机译：分组卫星通信中多普勒频移和多普勒速率最佳联合估计的突发格式设计

获取原文
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper considers the problem of optimizing the burst format of packet transmission to perform enhanced-accuracy estimation of Doppler-shift and Doppler-rate of the carrier of the received signal, due to relative motion between the transmitter and the receiver. Two novel burst formats that minimize the Doppler-shift and the Doppler-rate Cramér-Rao bounds (CRBs) for the joint estimation of carrier phase/Doppler-shift and of the Doppler-rate are derived, and a data-aided (DA) estimation algorithm suitable for each optimal burst format is presented. Performance of the newly derived estimators is evaluated by analysis and by simulation, showing that such algorithms attain their relevant CRBs with very low complexity, so that they can be directly embedded into new-generation digital modems for satellite communications at low SNR.
机译：本文考虑了由于发射器和接收器之间的相对运动而优化分组传输的突发格式以执行接收信号的多普勒频移和多普勒速率的增强精度估计的问题。得出了两种新颖的突发格式，用于联合估计载波相位/多普勒频移和多普勒速率，从而将多普勒频移和多普勒速率克拉姆-饶边界（CRB）最小化，并提供了数据辅助（DA）提出了适合每种最优突发格式的估计算法。通过分析和仿真评估了新推导的估计器的性能，结果表明此类算法以非常低的复杂度获得了相关的CRB，因此可以将它们直接嵌入到新一代数字调制解调器中以实现低SNR的卫星通信。

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