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TDS-OFDM系统的功率调整技术研究

Research on Power Ratio Adjusting for TDS-OFDM System
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摘要 针对频域双PN序列填充的TDS-OFDM系统,提出了通过调整训练序列与帧体数据功率比值来降低系统误符号率的方法,并通过调整两者的功率比值对系统在多径衰落信道下的误符号率性能进行仿真。仿真结果表明选择合适的功率比值会带来信噪比的增益。 In this paper, an algorithm of adjusting power ratio between training sequence （TS） and frame body for the time- domain synchronous orthogonal frequency division multiplexing system （TDS-OFDM） with dual PN-sequence in frequency domain as the TS to achieve the minimum symbol error rate is proposed. Simulation shows that an optimal power ratio can achieve SNR gain for the system.
作者 周晓 杨昉 宋健
机构地区 清华信息科学与技术国家实验室微波与数字通信技术国家重点实验室清华大学电子工程系
出处 《电视技术》 北大核心 2011年第3期71-73,80,共4页 Video Engineering
关键词 TDS—OFDM 信道估计 训练序列 功率调整 误符号率 TDS-OFDM channel estimation training sequence power adjustment symbol error rate
分类号 TN949.197 [电子电信—信号与信息处理] TN919.3 [电子电信—通信与信息系统]
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参考文献5

  • 1耿鲁静,王劲涛,潘长勇.一种TDS-OFDM系统的信道估计方法[J].电视技术,2009,33(S2):30-32. 被引量：3
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二级参考文献15

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电视技术
2011年 第3期

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