A new algorithm of joint frequency offset and symbol timing acquisition for pi/4-DQPSK signals in low signal-to-noise ratios

Hangsheng Zhao; Zhongmin Gan

doi:10.1117/12.657658

4 January 2006 A new algorithm of joint frequency offset and symbol timing acquisition for π/4-DQPSK signals in low signal-to-noise ratios

Hangsheng Zhao, Zhongmin Gan

Author Affiliations +

Proceedings Volume 5985, International Conference on Space Information Technology; 59852D (2006) https://doi.org/10.1117/12.657658
Event: International Conference on Space information Technology, 2005, Wuhan, China

Abstract

A new algorithm of frequency offset and symbol timing acquiring is derived for π/4-DQPSK signals in low signal-to-noise ratios (SNR). Comparing with some conventional schemes, this algorithm can joint frequency offset acquisition and symbol timing acquisition and needs fewer preamble date. It can work quite well at 3 dB SNR. Even if SNR is zero, it also gives an acceptable performance.

Citation Download Citation

Hangsheng Zhao and Zhongmin Gan "A new algorithm of joint frequency offset and symbol timing acquisition for π/4-DQPSK signals in low signal-to-noise ratios", Proc. SPIE 5985, International Conference on Space Information Technology, 59852D (4 January 2006); https://doi.org/10.1117/12.657658

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