【摘要】 本文介绍了UWB通信系统的系统模型,PAM调制方式,并将Rake接收机与MRC相结合以处理接收信号。本文提出了用卷积编码与重复发送相结合的方式来发送每一个信息比特,给出了卷积码码型选择条件,并对非编码系统和卷积编码系统的性能进行了分析。通过仿真,我们给出了在不同“指峰”数目和不同码率条件下的卷积码的误码性能。更多还原

【Abstract】 This paper introduces the system model of UWB communication system, pulse amplitude modulation, Rake receiver combined with MRC dealing with the received signals. The combination of convolution codes with repetitious transmission to transmit every information bit is put forward here. The condition of code pattern choice of convolution codes and performance analysis of uncoded system and coded system with convolution codes are given below. By simulations, we give bit error probabilities according to numbers of fingers and code rates.更多还原