论文部分内容阅读
深圳地铁3号线西延线公安无线通信系统使用350 MHz警用无线频点,与现有公安350 MHz网络有机衔接,整合为一个完整、统一的通信调度指挥网。介绍了公安无线通信系统的覆盖要求及功能,阐述了同频基站覆盖半径的计算方法。该系统采用全球定位系统锁频控制技术及多站同频同播工作方式的无线同频同播网,特别适用于大范围覆盖和地形复杂等环境下的无线通信。
The West Yan line public security wireless communication system of Shenzhen Metro Line 3 uses the 350 MHz police wireless frequency point, which integrates with the existing public security 350 MHz network and integrates into a complete and unified communication dispatch network. The covering requirements and functions of public security wireless communication system are introduced, and the calculation method of the coverage radius of the same frequency base station is expounded. The system uses global positioning system frequency lock control technology and multi-station simulcast with the same frequency wireless simulcast network work, especially for a wide range of coverage and terrain in complex environments such as wireless communications.