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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 shape modulation (PSM) is one of the commonly used modulation methods in ultra-wideband systems. In this paper, the orthogonal eigenvalue pulse is selected as the pulse shape modulated modulation waveform, and the error rate formula of binary pulse shape modulated hop time multiple access (2PSM-THMA) system is derived based on the assumption of standard Gaussian approximation (SGA). Simulation results show that the performance of the system BER is basically consistent with the theoretical analysis results, and the two are more close with the increase of the number of interfering users.