professional mobile radio (PMR)是什么意思

网络释义

用法例句

The study of wireless channels laid the foundations of the whole digital wireless mobile communication.

无线信道是整个现代数字无线移动通信研究的基础,从电磁波传播方式、无线信道对传输信号的影响以及等效低通信道的时变冲激响应等几个方面对无线信道的特性进行了研究。

The functions of TRF6900 are analyzed,based on which,the practical application is demonstrated in constructing a wireless mobile communication system used for teledata col.

TI公司的无线收发芯片TRF6900是工作在850~950MHz ISM频段的低功耗无线收发芯片,与普通无线收发芯片相比,非常适合在复杂的电磁环境下实现距离范围在1000米以内的无线移动通信;通过对TRF6900芯片的功能分析,论述了基于该芯片构建远程数据采集系统的原理及实际电路的设计,该系统提高了井下数据采集的速度和灵活方便性;应用结果表明,该系统运行稳定可靠,检测精度高,具有一定的实用性和推广价值。

Aiming to solve the problems of collecting data from underground restricted space,high frequency wireless mobile communication system has become a main solution because of its high reliability,convenience and low cost.

针对地下非自由空间的信息数据采集,超高频无线移动通信具有可靠性高、应用方便、成本低廉等特点,目前已经成为主要发展方向。

Mobile Wireless Communications Past and Future Trends

移动无线通信的过去和未来发展趋势

Study and Practice of Talent Cultivation of Wireless Communication Major;

无线通信专业方向人才培养研究与实践

public radio communications services

公用无线电通信业务

Eurosignal service

西欧无线电通信业务

Current wireless communications are just too slow, some experts say.

有些专家说，目前的无线通信太慢。

international fixed public radio communication service

国际固定通用无线电通信业务

transmitting and receiving service

双向无线电通信，收发业务

Studies and Developments of Real-Time Communication in Industrial Wireless Networks;

工业无线网络实时通信的研究与开发

The Research of Consolidating Police Professional Radio to cope with Emergency and Abrupt Events

加强公安无线通信专网建设积极应对突发事件

The Research of an Application Specific PRN;

分组无线专用通信系统的研究系统通信协议的设计

radio-communication line of centimetric wave

微波无线电通信线路

Research on a Group SMS Platform Based on GPRS;

通用分组无线业务的短信群发平台开发

Research on the Application of Wireless Communicating Technology in Precision Agriculture

无线通信技术在精准农业中的应用研究

The Application of Wireless Communication Network in Agricultural Irrigation System

无线通信网络在农业灌溉系统中的应用

SCADA System of Waterworks Based on Industrial Ethernet and Wireless Communication

基于工业以太网和无线通信的水厂SCADA系统

Interconnection Strategy Study of Industrial Communication Network Based on Wireless Gateway

基于无线网关的工业通信网络互联策略研究

fire ground network

火场指挥网无线通信网

transmit messages via radio waves.

通过无线电波传输信息。

ISCAN (Inertialess Steerable Communication Antenna)

无惯性可控通信天线