介绍第三代移动通信WCDMA 系统的调制技术,包括QPSK调制和解调
的基本原理,以及WCDMA 系统的调制方式。分析了在实际应用中多普勒频偏和频
率稳定度对调制性能的影响,并简要介绍了调制、解调的实现方法。
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WCDMA 518004 WCDMA Q PS K WCDMA WCDMA Q PS K Abstract The modulation technology of the third generation mobile WCDMA sys tem including the Q PS K is introduced in this paper including the Q PS K We also analysize the impacts on the system capabilities caused by Doppler frequency shift and its own frequency stability Keywords WCDMA Q PS K modulation demodulation R TT HPS K CDMA2000 Q PS K Q PS K Q PS K BPS K BPS K Q PS K 1 QPSK n 1 1 QPSK Q PS K 1 T 1 2 T Q PS K 1 I ......
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