论文部分内容阅读
本文对包括巴克码,m序列族,高斯白噪声序列,混沌序列在内的几个相关序列的产生,相互关系进行了介绍,重点分析并比较了它们的相关性。相关序列在现代通信系统中扮演着重要的角色,而且有进一步加强的趋势:好的自相关性将增强序列通信过程中的抗干扰能力;好的互相关性将有效的抑制码间干扰,这两者都有利于提高信号的检测率;而序列中码数的多少直接决定了码分多址通信系统的容量,因此本文的结果对通信系统的设计有实际的参考价值。
In this paper, several related sequences including Barker code, m sequence family, Gaussian white noise sequence and chaotic sequence are introduced and their relations are introduced. The correlation between them is analyzed and compared. Related sequences play an important role in modern communication systems and have a tendency of further strengthening: good autocorrelation will enhance anti-interference ability in the process of sequence communication; good cross-correlation will effectively suppress intersymbol interference Both of which are helpful to improve the detection rate of the signal. However, the number of codes in the sequence directly determines the capacity of the code division multiple access communication system. Therefore, the results of this paper have practical reference value for the design of the communication system.