基于正交编码的M元非正弦扩频调制方法

M-ary nonsinusoidal spread spectrum modulation method base on orthogonal coded sequences

摘要: 为了提高非正弦时域正交调制通信系统的性能，增强抗干扰能力，将M元扩频技术引入到非正弦时域正交调制通信系统，提出了一种基于正交编码的M元非正弦时域正交扩频调制方法.采用理论推导和数值仿真的方法，分析了该系统在加性高斯白噪声信道下的误码性能和频带利用率.结果表明：该方法能够有效提高系统的误码性能，增强系统的抗干扰能力.

Abstract: Based on orthogonal coded sequence sets，an Mary nonsinusoidal orthogonal spread spectrum modulation method in time domain is proposed for enhancing the bit error rate performance and increasing the antiinterference performance.By the means of theoretical deduction and analysis，the bit error rate performance on the additive White Gaussian noise(AWGN) channel and the spectrum efficiency is analyzed.The results show that the proposed method can enhance the bit error rate performance and increase the antiinterference performance efficiently.