【摘要】 常规DCS系统的通信网络主要采用有线信道(如光缆、电缆等)构成数据链路,但在许多情况下,采用无线组网方式会具有更大的优势。文中提出了一种基于CDMA的无线DCS系统,分析了该系统的组成、原理、信道接入方式以及关键技术等。更多还原

【Abstract】 The communication network of conventional DCS mainly uses wired channels,such as twisted pair wire or optical fiber,but under some circumstances the wireless DCS will be a better solution.This paper proposes a wireless DCS based on CDMA,and analyses the structure,operating principle,multichannel access protocols and the key technologies of this system.更多还原