Analysis of QPSK transmitted-reference systems

J. Romme, Klaus Witrisal
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引用次数: 5

Abstract

The usage of an additional autocorrelation branch is proposed for the demodulation of transmitted reference signals, to both relax the demands on the hardware implementation and allow for QPSK-TR signalling. The proposed autocorrelation receiver is proven to perform a complex-valued autocorrelation. Based on this insight, a discrete-time equivalent system model is derived, including a statistical characterization of the system taking into account noise, as well as intra- and inter-symbol-interference (IISI). The performance of a fractionally sampled QPSK-TR system is presented, operating at different data rates in different environments.
QPSK传输参考系统分析
提出了使用额外的自相关支路来解调传输的参考信号,既放松了对硬件实现的要求,又允许QPSK-TR信令。所提出的自相关接收机被证明能执行复值自相关。基于这一见解,导出了一个离散时间等效系统模型,包括考虑噪声以及符号内和符号间干扰(IISI)的系统统计特征。介绍了分数采样QPSK-TR系统在不同环境下以不同数据速率工作的性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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