本文还对应用于短波通信系统的协议进行了研究和实现。
The software design and implement of the protocol which used in shortwave telecommunication system is also discussed in this paper.
在短波通信系统中，由于多径效应常常引起信道衰落，直接结果是码间串扰非常严重。
In shortwave communication system, Intersymbol Interference is serious and signal is distorted extremely because of fading channel resulted in by the effect of multipath.
文章最后指出了该超短波通信系统通信控制器的不足之处以及今后可以努力改善的方向。
At last, the thesis has pointed out some deficiencies of this ultra short wave communication system communication controller and the ways to modify have been described also.
我国第三代短波通信的研究刚刚起步，国内的短波通信系统大多基于第二代短波通信标准。
The domestic research on third generation HF communication came late and most of the HF radio stations are based on second generation.
现代短波通信系统，其信道大多数具有频率的选择性，多径传输产生了信号的相干衰落与符号干扰。
In modern shortwave communication systems, the channels are mostly frequency-selective, multipath transmission causes the coherent attenuation and symbol interference.
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。
This paper presents a prediction model of frequency parameters of short-wave communication based on non-singleton fuzzy system.
缩短天线调谐时间是短波自适应通信系统智能化、自动化的需要。
Decreasing the tuning time of the antenna is very important in intelligentized and automated short wave adaptive communication systems.
跳频通信技术因其具有良好的抗干扰能力而被广泛应用于各类通信系统中，尤其是短波通信中。
Frequency hopping technology has served in all kinds of communication systems with its excellent interference resistance ability, especially in short wave communication system.
本文所研究内容的课题来源于某专用超短波通信设备转信系统的研究。
The subject in this thesis comes from the researching of some special ultra short wave communication device transmission system.
无线通信系统按其传播信息的方式，可分为长波、中波、短波、超短波和微波通信方式。
From the mode of information transmission, the wireless communication can be classified as long wave, medium wave, shortwave, ultra short wave, and microwave.
文中介绍了一种数字化超短波跳频通信系统，并着重讨论了其系统定时、发送数据格式、同步的实现方式、同步保持等关键技术。
A digital VHF FH communication system is introduced, followed by its timing, the format of the data transmitted, the synchronization method and the keeping of synchronization.
本文针对短波高速跳频通信系统的同步捕获技术做了详细的研究。
In this paper, we focus on shortwave fast frequency-hopping system synchronization acquisition techniques.
实战条件下如何评价短波跳频通信系统的抗干扰性能是构建短波跳频通信系统的重要环节。
It is important to evaluate the antijamming ability of the short wave hopping communication system in real warfare.
本文介绍了一种新型的短波跳频通信系统CHESS系统。
This paper presents a new HF frequency hopping communication system which is called correlated hopping enhanced spread spectrum (CHESS).
并根据现有短波电台的结构特点，设计了通信方案和系统结构，并为系统各部分分配了具体功能。
Base on the structure of existing shortwave radios, communication scheme and system structure are designed, and particular functions are assigned to the parts of system.
由于此ALE系统是为海格通信公司短波电台设计的一个模块，实际方案根据公司电台的实际要求作了优化与改进。
ALE module is optimized and mended in its application, because it is a module of automatic radio of the company.
在简要地介绍了单兵短波数字通信系统的基础上，给出了MGLS12864T点阵液晶显示模块与第三代数字信号处理器(DSP)TMS320C31的硬件接口电路。
Firstly, the data communication system on short-wave for single soldier is present in brief. And then the hardware interface between the lattice LCD MGLS12864T and the 3g DSP TMS320C31 are introduced.
根据自己所学的知识并结合自己的能力，设计出了一种极低信噪比条件下的短波ds—ss通信系统。
The knowledge studies which according to oneself and unifies own ability, designed under one kind of extremely low signal-to-noise ratio condition short wave DS-SS communications system.
同时，在超短波电台基础上，设计了一种扩展通信设备，实现了系统无线通信质量和容量的进一步提升。
Simultaneity, an equipment of the expand application of VHF station has been gived to enhance the quality and capacity of the radio communication net of system.
短波通信以电离层作为其主要的中继系统。
The ionosphere is used by the shortwave communication as the relay station for the electromagnetic paths.
然而现有短波差分跳频通信系统仍面临稳定度和健壮度的挑战。
But still DFH systems are facing the challenge of greater needs for stability and robustness.
然而现有短波差分跳频通信系统仍面临稳定度和健壮度的挑战。
But still DFH systems are facing the challenge of greater needs for stability and robustness.
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