数字图像无线传输的π/4-DQPSK调制、解调的DSP实现(基于C54X)  

Realization of π/4-DQPSK Modulation and Demodulation in Digital Video Wireless Transmission By DSP

作　　者：谢由超[1] 钟洪声[1] 

机构地区：[1]电子科技大学,四川成都610054

出　　处：《中国有线电视》2004年第23期9-12,共4页China Digital Cable TV

摘　　要：研究数字图像无线传输中基带信号处理的关键技术 ,根据DSP的特点优化π/ 4 -DQPSK调制、解调的算法 ,对基带差分解调进行计算机仿真 ,并提出用DSP芯片实现π/ 4Some key base-band processing(BBP) techniques in digital video wireless transmission are researched. Based on the characteristic of DSP, the algorithms of π/4-DQPSK modulation and demodulation are optimized as well. The differential demodulation of base-band is simulated and hardware solution by DSP chip for π/4-DQPSK modulation and demodulation is implemented.

关 键 词：Π/4-DQPSK 同步 DSP 

分 类 号：TN919.6[电子电信—通信与信息系统]