基于相关技术的MPSK DS/CDMA载波跟踪

Journal of Applied Sciences ›› 2000, Vol. 18 ›› Issue (4): 313-316.

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Carrier Recovery Based on Correlation Technique

ZHENG Jie, HU Ai-qun

Department of Radio Engineering, Southeast University, Nanjing 210096, China

Received:1999-05-10 Revised:1999-09-17 Online:2000-12-31 Published:2000-12-31

Abstract

Abstract: This paper presents a new method for carrier recovery in a direct sequence (DS) code division multi-access (CDMA) receiver. The data demodulation scheme used is multiple phase shift keying (MPSK). The proposed scheme employs two balanced X-correlators to form a frequency discriminator. Theoretical analysis indicates that the proposed method has a tracking range that doubles the symbol rate, and the tracking range is independent of the keying phase number of the MPSK modulation.

Key words: phase shift keying modulation, carrier recovery, correlation, DS/CDMA

CLC Number:

TN.91

ZHENG Jie, HU Ai-qun. Carrier Recovery Based on Correlation Technique[J]. Journal of Applied Sciences, 2000, 18(4): 313-316.

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Carrier Recovery Based on Correlation Technique

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