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本文给出了一个使用HARRIS公司PRISM芯片组设计的大区一点多址无线通信系统。它采用直接序列扩频技术、时分多址(DS/TDMA)的组网方式,工作于ISM频段,以最大250mw的发射功率覆盖半径30Km的区域,承载20路TDD方式的ISDN基本速率业务信道。该方案适于构造高性能的专网。
This article presents a one-point, multi-access wireless communication system designed with HARRIS’s PRISM chipset. It uses direct sequence spread spectrum technology and time division multiple access (DS / TDMA) networking mode to work in the ISM frequency band, covering a radius of 30Km with a maximum transmit power of 250mw and carrying 20 TDD ISDN basic rate traffic channels. The program is suitable for the construction of high-performance private network.