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《Telecommunication Engineering》 2002-01
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Implement π/4-DQPSK Modulation Based on TMS320C54x Chip

LIAO Chang-qing, LU Jian-chuan, ZENG Li (The Electronic 10th Institute of Ministry of Information Industry ,Chengdu 610036 ,China)  
A quadrature modulation approach of π/4-DQPSK signal for the wireless communication system based on the look-up table using TMS320C54x is presented in this paper.Inter-symbol interference(ISI) and spectral spreading problems are reduced by raised cosine filtering.The approach has such advantages as simple circuit structure and less resource consumption.Analysis result shows that this structure can be applied to practice.
【CateGory Index】: TN929.53
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