1) microwave short distance communicators
微波短距通信器
2) shortwave communication
短波通信
1.
The working principle of shortwave communication, the construction of shortwave communication network in Anhui Province and the important role it has played in earthquake preparedness and disaster reduction in resent over 10 years are introduced in this paper
本文介绍了短波通信的工作原理和安徽短波通信网的建设情况。
2.
This thesis researches the auto-detection and recognize of morse signal which is simple and applied in the shortwave communication.
本课题是研究短波通信中莫尔斯信号的自动检测和识别。
3.
How to improve data transmission speed is the primary research direction of shortwave communication system, which is also that of other communication systems.
短波通信系统研究的一个主要方向就是提高数据传输速率，这也是其它通信系统所面临的主要问题之一。
3) short-wave communication
短波通信
1.
This paper presents a prediction model of frequency parameters of short-wave communication based on non-singleton fuzzy system.
提出一种利用非单点模糊系统建模的短波通信频率参数预测模型。
2.
Short-wave communication is the main means of the remote communication between ships on the sea.
短波通信是目前海上舰船实施远程通信的重要手段。
3.
This paper first introduces the evolution of adaptive short-wave communication, then presents the technologies in cooperate design of short-wave station with software radio.
介绍了自适应短波通信的发展情况,阐述了用软件无线电技术进行短波电台的相关设计的技术路径,并重点介绍了天线自动调谐与自适应频率选择技术。
4) short wave communication
短波通信
1.
The reliability of short wave communication can be improved using a hybrid method for predictions based on chaos phase reconstruction and neural networks to predict frequency parameters.
为提高短波通信的可靠性 ,提出了一种将混沌和神经网络相结合的方法预测短波通信频率参数。
2.
The equipment of the short wave communication for telecommunication is simple and ionosphere can not be easily destroyed by man.
短波远距离通信具有设备简单、电离层不易遭受人为破坏的特点,因此,短波通信具有极其重要的战略地位。
3.
In this paper, the short wave communication system is introduced and the function, characteristic and structure of the digital exciter used in the system are explained.
介绍了短波通信系统的组成 ,阐述了数字激励器的功能、特点以及内部结构 ,着重讨论了数字激励器在软件上如何完成控制功能以及它与中心控制的串行通
5) high frequency communication
短波通信
1.
aiming at the characteristics of high frequency communication,the military application and the topology structure design of high frequency network are studied,and its specifi.
首先介绍了网络的拓扑结构,然后针对短波通信的特点研究了短波星形组网、树形组网和网形组网的军事应用及拓扑设计,并给出了具体的构造方法。
2.
Automatic link establishment(ALE) is one of the most important technologies in the third generation(3G) high frequency communications,with the handshake scheme being the key part.
自动链路建立(ALE)技术是第三代短波通信(3G)中的一项关键技术,握手过程是自动链路建立技术的一项重要内容。
3.
In high frequency communication, extremely low SNR communication is an expedient means.
在短波通信中,极低信噪比条件通信是一种应急通信手段。
6) HF communication
短波通信
1.
The single site passive long-range locating conception of HF communication;
单站短波通信无源远程定位构想
2.
The affection of the natural environment on HF communication;
自然环境对短波通信的影响
3.
Calculation of the lowest useable frequency for long distance HF communication;
远距离短波通信最低可用频率的计算
补充资料：数字微波通信
| 数字微波通信 digital microwave communication 基于时分复用技术的一类多路数字通信体制。可以用来传输电话信号，也可以用来传输数据信号与图像信号。与数字微波通信相对应的是它的前身——模拟微波通信，它是基于频分复用技术的一类多路通信体制，主要用来传输模拟电话信号和模拟电视信号(见载波通信)。数字微波通信具有两大技术特征：①它所传送的信号是按照时隙位置分列复用而成的统一数字流，具有综合传输的性质。②它利用微波信道来传送信息，拥有很宽的通过频带，可以复用大量的数字电话信号，可以传送电视图像或高速数据等宽带信号。由于微波电磁信号按直线传播，数字微波(模拟微波也如此)通信可以按直视距离设站(站距约50千米)，因此，建设起来比较容易。特别在丘陵山区或其他地理条件比较恶劣的地区，数字微波通信具有一定的优越性。在整个国家通信的传输体系中，数字微波通信也是重要的辅助通信手段。
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说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条