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| A Fast π/4-DQPSK Demodulation Arithmetic and Realization | |
| 作者姓名： | 周国勇 钟洪声 王军梅 |
| 作者单位： | School of Electronic Engineering，UESTC Chengdu 610054 China，School of Electronic Engineering，UESTC Chengdu 610054 China，School of Electronic Engineering，UESTC Chengdu 610054 China |
| 摘 要： | The modulation of π/4-DQPSK (π/4 shift differentially encoded quadrate phase shift keying) is more efficient in frequency, simpler in demodulation, and more useful in communication of moving system. At present, its realization, specially, its digital circuit realization has become a hot point to be researched. Some papers have introduced the method and circuit of QPSK in digital way, for example, the QPSK are made with DSP and FPGA[1~6]. A DQPSK modulation and demodulation based on… |
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