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移动通信中一种不受功率控制影响的多普勒频偏估计方法 被引量：10

A scheme for the Doppler shift estimation despite the power control in mobile communication systems
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摘要 分析了时变多径信道均方相位差分的统计特性,进而利用接收机有效到达径上信道参数的估计值,统计其相位差分的均方值,据此估计出时变多径信道的多普勒频偏。同时针对噪声环境下平方相位差分法的估计偏差,本文给出了改进方法,使得通信系统在各种移动速度和信噪比下都具有较高的估计精度。 The characteristics of phase difference in the time-varying channel are analyzed, then the Doppler-shift of the time-varying multi-path channel is estimated by calculating the expectation of the square phase difference of the channel coefficients on the effective fingers. Also we recommend an improved estimating method to get the high estimation accuracy in all kinds of velocity and signal-to-noise ratio.
作者 华惊宇 尤肖虎
机构地区 东南大学移动通信国家重点实验室
出处 《通信学报》 EI CSCD 北大核心 2004年第5期1-9,共9页 Journal on Communications
关键词 多普勒频偏 相位差分 信道估计 Doppler-shift phase difference channel estimation
分类号 TN929.533 [电子电信—通信与信息系统]
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参考文献10

  • 1JAKES W C. Microwave Mobile Communications[M]. New York: IEEE Press,1994.
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二级参考文献7

  • 1[1]Lee W C Y. Mobile Communications Engineering[M]. New York: McGrawHill, 1982.
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  • 6[6]3GPP, TS25.211, Physical channels and mapping of transport channels onto physical channels(FDD), vol3.2.0[S]. June, 2000.
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共引文献11

同被引文献50

引证文献10

二级引证文献14

通信学报
2004年 第5期

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