查询词典 VHF

A new method of VHF channel access protocol analysis based on semi-Markov model is presented in this paper.

本文提出了一种基于半马尔可夫模型的VHF信道访问协议分析方法。

By using this approach,system parameters are not restricted to an exponential distribution,which is close to the practical situation.The method has been applied into VHF datalink system and the simulation results show that it is effective.

这种方法不需限制系统参数分布为指数分布，更接近实际情况，将其用于VHF空地数据链系统的仿真结果表明，该方法是行之有效的。

AFN-Japan, formerly the Far East Network, has two full-power VHF TV outlets.

AFN 日本，以前远东网络，有二个full-power VHF 电视出口。

Navigation control system is equipped with all-solid-state 1 / secondary radar, instrument landing system runway two-way, bi-directional approach lighting system, omni-directional beacons Units, ground-to-air VHF data link and four / eight-channel common antenna system and other advanced equipment to ensure that aircraft normal flight and the night and blind drop requirements.

航行管制系统配备有全固态一／二次雷达、跑道双向仪表着陆系统、双向进近灯光系统、全向信标台、地空数据链及VHF四/八信道天线共用系统等先进装备，保证飞机的正常飞行及夜航和盲降的要求。

The earth is a rather poor reflector of VHF signals, but this it must do at the midpoint.

地球是VHF 信号一台相当恶劣的反射器，但这它必须做在中点。

The pharos is controlled by reliable program. Working status data is collected in real time. A two-stage amplifier is used to sense the current signal. VHF transmitter-receiver is used as the means of communication, which is working at 233. 3MHZ. GPS data is collected to calculate the latitude and longitude valued of the pharos. Sleep mode is used to reduce the energy consumption. Auto alarm function and watch dog function are integrated to maintain its stability and reliability.

在用高性能8位处理器68HC908SR12设计的新型遥控遥测航标灯中，充分利用了处理器的功能，实现了对灯器的程序化控制，实时进行数据采集，采用了两级放大器对电流信号进行放大，采用VHF电台进行远程通信，对GPS定位数据进行采集和处理，为了降低功耗实现了定时和睡眠控制，为保证工作稳定性和可靠性，启动了故障处理、自动报警功能，以及看门狗功能。

As an important component, VHF(Very High Frequency Radiotelephony) subsystem utilizes the speech communication to ensure the VTS system has its basic function.

作为VTS系统的一个重要组成部分的VHF(Very High Frequency Radiotelephony)通信子系统通过语音通信来保证VTS系统具备其基本的功能。

If vessels aren't equipped with VHF, they can utilize mobile telephone, fax, SSB and so on.

若船舶不具备VHF通信条件时，也可采用移动电话、传真、单边带通讯等方式进行。

The reflection of VHF signals can also occur during aurorae - spectacular curtains of lights arising from charged particles originating from the sun.

VHF 信号的反射可能并且发生在aurorae -光壮观的帷幕期间出现从荷电粒子起源于太阳。

Aurorae and large geomagnetic/ionospheric disturbances are associated and so VHF transmission by this means occurs at times when HF may be experiencing problems.

Aurorae 和大geomagnetic/ionospheric 干扰是伴生的和因此VHF 传输由这手段时常发生当HF 也许体验问题。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。