一种新的二元多址序列——NPC序列

A Novel Family of Binary Multiple Access Sequences--NPC Sequences

CDMA通信系统中,以多址序列作为地址码标识移动用户,多址序列的特性对于CDMA系统的通信性能和安全性都具有决定性的作用。多址序列的设计已成为CDMA技术中的一个关键问题。本文提出了一类新的多址序列的设计称为NPC序列。证明了NPC序列具有优良的相关特性,极大的线性复杂度和较多的同族序列数量,解决了现有非线性伪(?)机序列在实际应用中数量不足的限制,可适用于CDMA通信系统中。

In the CDMA system, the multiple access sequences are used to identify the mobile users. The performances of communication and security are heavily depended on the properties of the multiple sequences. The design of multiple sequences : one of the key problems in the CDMA systems. In this paper, a new class of binary pseudorandom sequences is proposed, which is called NPC sequences. It is verified NPC sequences have good pseudorandom properties, very large linear spans, the great nutnber of the sequences of the same family, and can be used in the CDMA spread spectrum communication.