Realization of π/4-DQPSK Modulation and Demodulation in Digital Video Wireless Transmission By DSP
Hongsheng Zhong · China Cable Television · 2004
Some 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.