视距通信

紫外光非视距通信大气信道模拟与分析

Computer Simulation and Analysis of the Atmosphere Channel in the UV NLOS Communications

结果表明菱形天线具有较好的性能，所得到的结果对该类天线及超视距通信系统的设计有指导意义。

And the results obtained can be instructional on the design of rhombic antenna and over-the-horizon ( OTH ) communication system .

在微波视距通信中通常采用二径模型来描述信道，简要介绍了二径模型的频率响应、损伤参数以及多径时延与天线高度、通信距离的关系。

This paper introduces briefly the frequency response , damage parameter of two-ray multipath model and the relationship between multipath time delay , antenna height and communication distance .

紫外光非视距通信是建立在紫外光特有的大气散射特性基础上的新型通信方式。

Ultraviolet ( UV ) non-line-of-sight ( NLOS ) communication , which is based on the unique characteristics of UV atmospheric scattering , is a new means of communication .

本文针对目前海军舰艇视距通信存在的效率低、隐蔽性差等问题，采用现代计算机通信和无线激光技术，论证、设计了一种舰艇紫外光通信系统。

Aiming at the problem of communication efficiency low and concealment low in the field of visual-distance communication on warships , it is adopted that modern communication and wireless laser technology , a kind of warship communication system of ultraviolet light had been expounded and designed .

由于短波无线通信具有抗毁性强、设备简单、机动灵活和成本低廉等优点，特别是可以实现超视距通信，所以一直被广泛地应用于中远距离的军用和民用通信领域。

The short wave wireless communications has been widely used in middle and long distance communications domain for both military and civilian usages because it is characterized by good damage-resistance , simple structure , functional agility and low cost , especially the realization in stadia communications .

自由空间光通信系统以其传输码率高、安装方便、成本低、安全性好等诸多优点已广泛运用于卫星通信与地面视距通信领域，有着良好的应用前景和巨大的市场潜力。

With its great advantages of high data rate , convenient installation , low cost , and good security , FSO system has been widely applied in the fields of satellite communication and ground sight distance communication , with a promising application prospect and tremendous market potential .

在短波自适应通信体系中，美军标MIL-STD-188-110A协议占有极其重要的地位，它规范了短波自适应通信体系架构和性能标准，根据该标准生产的短波电台也被美军用于日常的超视距无线电通信当中。

In HF adaptive communication system , the American military standard MIL-STD-188-110A protocol occupies an extremely important position ; it standardizes the HF adaptive communication system architecture and performance standards . According to the standard of shortwave radio , production has also been used for the radio everyday .

因此，对于对准精度要求并不苛刻的非视距紫外光通信而言，此算法是可行的。

This algorithm , therefore , is feasible for the ultraviolet communication which does not need rigorous pointing accuracy .

气象条件对近地视距光通信链路的影响研究岸船远距离无线电通信

The effects of atmospheric conditions on the performance of line-of-sight optical free space communication system ; long-distance ship-shore radio communications

本文概述了超高频电波在陆地上的传播特性和传播方式及视距和通信距离的计算；

In this paper , the transmission performance and transmission manner of superfrequency electric wave and the calculations of stadia and communication distance are discussed .

自由空间光通讯中应用的光纤耦合系统设计气象条件对近地视距光通信链路的影响研究

The design of optical free space communication system with the optical fiber coupling system THE EFFECTS OF ATMOSPHERIC CONDITIONS ON THE PERFORMANCE OF LINE-OF-SIGHT OPTICAL FREE SPACE COMMUNICATION SYSTEM

给出了对声波激励下对流层超视距散射通信散射损耗与无声波激励时散射损耗的对比，对声波激励下对流层超视距散射通信性能做出了评估。

Based on the results we contrast the acoustic excitation troposphere over-the-horizon communications scattering loss and scattering waves excited in silent scattering loss . At last we make an assessment about the troposphere over-the-horizon communications scattering performance in existence the acoustic .

紫外光非视距后勤应急通信系统研究

Study of Free-space UV NLOS Logistics Emergency Communication System

标签被附在被识别物体上面。因为它在超视距的范围内通信，能在恶劣的环境下工作，支持同时识别。

Tags are attached to objects to be identified . Because it is out of sign communications , and able to work under harsh environment , support the same time to identify .