Robust data-aided SNR estimation algorithm in high dynamic environment

A robust data-aided (DA) signal-to-noise ratio (SNR) estimation algorithm in the time domain is proposed in this paper, aiming at the volatile Doppler shift and carrier wave phase offset under dynamical scenarios for M-ary phase shift keying (MPSK) over the flat-fading complex channel. The proposed...

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Vydané v:2015 IEEE Symposium on Computers and Communication (ISCC) s. 632 - 636
Hlavní autori: Xianzhong Xie, Yuanyuan Liu, Weijia Lei
Médium: Konferenčný príspevok..
Jazyk:English
Vydavateľské údaje: IEEE 01.07.2015
Predmet:
Algorithm design and analysis
Complexity theory
Doppler shift
Estimation
Heuristic algorithms
Phase offset
Phase shift keying
Signal to noise ratio
SNR estimation
Time domain
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Abstract A robust data-aided (DA) signal-to-noise ratio (SNR) estimation algorithm in the time domain is proposed in this paper, aiming at the volatile Doppler shift and carrier wave phase offset under dynamical scenarios for M-ary phase shift keying (MPSK) over the flat-fading complex channel. The proposed algorithm exploits data aided, delay conjugate multiplies the received signal, converts Doppler shift into fixed phase factors, and overcomes the impacts of Doppler shift and carrier wave phase offset. Furthermore, the impact of noise is analyzed and simulation results show that, compared with algorithms based on the spectrum analysis (FFT), the proposed algorithm is superior in the performance, especially in the estimation accuracy under low SNR scenarios and has low complexity.
AbstractList A robust data-aided (DA) signal-to-noise ratio (SNR) estimation algorithm in the time domain is proposed in this paper, aiming at the volatile Doppler shift and carrier wave phase offset under dynamical scenarios for M-ary phase shift keying (MPSK) over the flat-fading complex channel. The proposed algorithm exploits data aided, delay conjugate multiplies the received signal, converts Doppler shift into fixed phase factors, and overcomes the impacts of Doppler shift and carrier wave phase offset. Furthermore, the impact of noise is analyzed and simulation results show that, compared with algorithms based on the spectrum analysis (FFT), the proposed algorithm is superior in the performance, especially in the estimation accuracy under low SNR scenarios and has low complexity.
Author Yuanyuan Liu
Xianzhong Xie
Weijia Lei
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  surname: Weijia Lei
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  organization: Inst. of Personal Commun., Chongqing Univ. of Posts & Telecommun., Chongqing, China
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Snippet A robust data-aided (DA) signal-to-noise ratio (SNR) estimation algorithm in the time domain is proposed in this paper, aiming at the volatile Doppler shift...
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SubjectTerms Algorithm design and analysis
Complexity theory
Doppler shift
Estimation
Heuristic algorithms
Phase offset
Phase shift keying
Signal to noise ratio
SNR estimation
Time domain
Title Robust data-aided SNR estimation algorithm in high dynamic environment
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