THE DETECTION OF UNIQUE WORD AT LOWER SNR

Zhang Ju; Xiang  Jingcheng; Zhu Zhongliang

Volume 23 Issue 11

Nov. 2001

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Zhang Ju, Xiang Jingcheng, Zhu Zhongliang. THE DETECTION OF UNIQUE WORD AT LOWER SNR[J]. Journal of Electronics & Information Technology, 2001, 23(11): 1116-1122.

Citation:

Zhang Ju, Xiang Jingcheng, Zhu Zhongliang. THE DETECTION OF UNIQUE WORD AT LOWER SNR[J]. Journal of Electronics & Information Technology, 2001, 23(11): 1116-1122.

Zhang Ju, Xiang Jingcheng, Zhu Zhongliang. THE DETECTION OF UNIQUE WORD AT LOWER SNR[J]. Journal of Electronics & Information Technology, 2001, 23(11): 1116-1122.

Citation:

Zhang Ju, Xiang Jingcheng, Zhu Zhongliang. THE DETECTION OF UNIQUE WORD AT LOWER SNR[J]. Journal of Electronics & Information Technology, 2001, 23(11): 1116-1122.

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THE DETECTION OF UNIQUE WORD AT LOWER SNR

Received Date: 2000-03-20
Rev Recd Date: 2000-07-14
Publish Date: 2001-11-19

Abstract

Abstract

This paper describes the principles of Unique Word(UW) detection and the design methods for a UW-detector at lower SNR. An engineering solution for a general purpose UW-detector based on maximum likelihood criteria is proposed. The simulation results show a 3-4dB improvement over the often employed hard-decision/threshold detection when the length of UW is 16 and the SNR is low. The developed UW-detectors have been used in auther s recent communication systems.

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References

INTELSAT, INTELSAT TDMA/DSI System Performance Specification, IESS-D317, 1997,TDMA/DDI Traffic Terminals.[2]J.L. Massey, Optimum frame synchronization, IEEE Trans. on Comm., 1972, 20(2), 115-119.[3]S. Sriram.[J].Maximum likelihood frame synchronizer for TDMA system, Proc. of IEEEGLOBECOMM98 Mini Conferences, Sydney, Australia.1998,:-[4]W.H. Sheen, C. T. Shih, On the performance evaluation, selection, and design of unique-wordsfor TDMA system, IEEE Trans. on Vehicular Technology, 1995, 44(1), 111-I20.[5]J.G. Proakis, Digital Communications, Third Edition, New York, McGraw-Hill, 1995, Chapter5.

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