【摘要】 在分析AWGN信道特性的基础上,通过研究典型调制方式下的超宽带冲激无线电信号(IR-UWB)的接收机结构,找到了一种IR-UWB最佳接收机.重点研究了在脉冲位置调制、脉冲幅度调制和二进制相移键控调制方式下,接收机抗距离衰落和加性高斯白噪声性能.通过对系统的仿真研究和性能分析,得出了基于BPSK调制方式下接收机的性能最优,并且结构简单易实现.更多还原

【Abstract】 In this paper,the character of Additive White Gaussian Noise(AWGN)’cannels is analyzed.The structure of receiver in typical modulation Impulse Radio Ultra Wide Band(IR-UWB) is discussed,and the best IR-UWB receiver on AWGN cannels is given.The function of receiver resisting distance declining and additive white Gaussian noise in PPM,PAM and BPSK is researched in important.Through simulating of the system and analyzing of the receiver’s ability ,the receiver’s ability in BPSK modulation is best,and its construction is simple and easily realized.更多还原