An Efficient Coherent Demodulation Algorithm for TETRA Communication System

Bo WANG; Qin ZHANG; Guocheng CHEN; Junfeng WANG; Qizhu SONG

9th International Conference on Communications and Networking in China

Research Article

An Efficient Coherent Demodulation Algorithm for TETRA Communication System

Cite: BibTeX Plain Text

@INPROCEEDINGS{10.4108/icst.chinacom.2014.256301,
    author={Bo WANG and Qin ZHANG and Guocheng CHEN and Junfeng WANG and Qizhu SONG},
    title={An Efficient Coherent Demodulation Algorithm for TETRA Communication System},
    proceedings={9th International Conference on Communications and Networking in China},
    publisher={IEEE},
    proceedings_a={CHINACOM},
    year={2015},
    month={1},
    keywords={tetra coherent demodulation frequency offset estimation phase offset compensation phase decisions},
    doi={10.4108/icst.chinacom.2014.256301}
}

Bo WANG
Qin ZHANG
Guocheng CHEN
Junfeng WANG
Qizhu SONG
Year: 2015
An Efficient Coherent Demodulation Algorithm for TETRA Communication System
CHINACOM
IEEE
DOI: 10.4108/icst.chinacom.2014.256301

Bo WANG¹^,*, Qin ZHANG¹, Guocheng CHEN², Junfeng WANG², Qizhu SONG²

1: Beijing Institute of Technology
2: The State Radio-monitoring-center Testing Center

*Contact email: prophetbrother@126.com

Abstract

This paper describes an efficient coherent de-modulation algorithm aiming at the receiver in Terrestrial Trunked Radio (TETRA) communication system. The algorithm proposes frequency offset error twice-estimation and sectioned phase offset compensation to achieve the high precision in carrier synchronization. Odd-even decision is then proposed in the algorithm to avoid signal noise ratio (SNR) loss in differential demodulation. The simulation has confirmed that the precision of frequency offset error twice-estimation is better than that of data-aided (DA) estimation and that compared with differential demodulation, the bit error rate (BER) performance of coherent demodulation is much better

Keywords: tetra coherent demodulation frequency offset estimation phase offset compensation phase decisions

Published: 2015-01-21
Publisher: IEEE
Appears in: IEEEXplore

: http://dx.doi.org/10.4108/icst.chinacom.2014.256301