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中文摘要：
分析了UWB室内衰落信道模型下脉冲幅度位置混合调制（PAPM）最优接收机性能．PAPM调制UWB系统的输入数据调制到脉冲的幅度和位置上．室内信道模型为IEEE802．15．3a提供的intel模型．通过RAKE接收机以最大比率（MRC）组合多径能量从而实现最优接收．从理论上推导了在室内衰落信道条件下误码率（BER）的闭合表达式，从而分析了RAKE接收时UWB系统采用PAPM调制的极限性能．从数值结果可以看出，PAPM调制在保持BER性能不变的基础上，将通信速率提高了一倍．
英文摘要：
The optimum receiver performance of a hybrid pulse phase and position modulation （PAPM） over ultra-wideband （UWB） indoor fading channel model is analyzed. In the PAPM UWB system, input data was modulated onto both the pulse phases and the pulse positions. The receiver employed a RAKE to combine multipath energy by use of the mixed raster content （MRC） algorithm to realize the optimum receiver. The closed-form error rate expressions of the system in indoor fading channels were determined, and thus the limited performance of the PAPM UWB system employing the RAKE receiver was analyzed. Calculation results shows that this PAPM modulation doubles the communication rate while holding the BER performance invariable.
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