Description: Abstract: In previous digital cellular systems, often using FSK, ASK, PSK, such as modulation. With the development of digital cellular systems, the digital cellular system modulation and the technical requirements of increasingly high, and many excellent modulation technique came into being, PI/4-QPSK wireless communications technology is more prominent in a binary modulation methods
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QPSK调制的分析、设计与仿真.doc
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