不平衡DQPSK非相干解调的误码率分析

Eighth IEEE International Symposium on Spread Spectrum Techniques and Applications - Programme and Book of Abstracts (IEEE Cat. No.04TH8738) Pub Date : 2004-08-30 DOI:10.1109/ISSSTA.2004.1371706

A. Caldow, G. Parker, K. Harman

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引用次数: 1

摘要

传统的不平衡QPSK直接序列扩频(DSSS)信号解调器需要载波相干性，以防止扩频过程中同相信道和正交信道之间的串扰。提出了一种能够承受这种串扰的非相干解调器，该解调器适用于无导频突发传输协议。本文着重于该解调器的误码率性能的分析模型的开发和验证，并表明，尽管串扰项的噪声贡献可能很高，但其对误码率的影响很小。

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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BER analysis of a noncoherent demodulation of unbalanced DQPSK DSSS

A conventional demodulator for an unbalanced QPSK direct sequence spread spectrum (DSSS) signal requires carrier coherence in order to prevent cross-talk between the in-phase and quadrature (I & Q) channels of the despreading process. A noncoherent demodulator which tolerates this cross-talk has been proposed, with applicability to pilot-less burst transmission protocols. The paper focuses on the development and verification of an analytic model for the BER performance of this demodulator, and shows that, although the noise contributions of the cross-talk terms can be high, the resultant impact on BER is only slight.

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Eighth IEEE International Symposium on Spread Spectrum Techniques and Applications - Programme and Book of Abstracts (IEEE Cat. No.04TH8738)

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