摘要
脉冲形状调制(PSM)是超宽带系统中常用调制方法之一。本文选用正交特征值脉冲作为脉冲形状调制的调制波形,采用基于标准高斯近似(SGA)的假设,推导了二进制脉冲形状调制跳时多址(2PSM-THMA)系统的误码率公式。仿真结果表明,系统误码率性能与理论分析结果基本吻合,且随着干扰用户数的增加,两者更为接近。
Pulse communication system. Shape Modulation is one of the modulation methods that are widely used in Ultra Wide Band The orthogonal eigenvalue pulses are chosen as the pulse waveforms of Pulse Shape Modulation. Based on the Standard Gaussian Approximation, the formula of Bit Error Rate in the Time Hopping Multiple Access system with Binary Pulse Shape Modulation is deduced. The simulation shows that the Bit Error Rate performance of the system is basically consistent with the theoretic performance, and even more consistent when the number of interference users increase.
出处
《通信技术》
2009年第2期193-195,共3页
Communications Technology
