All-digital modulation is a hot field in modern communication systems.
全数字调制技术是当前通信领域研究的一个热点问题。
Mixer is one of the most key components in modern communication systems.
现代通信系统中，混频器成为许多系统不可缺少的关键部件之一。
The broadband amplifier is an important type of amplifiers using in modern communication systems.
宽带放大器是现代通信系统中的一种重要的放大器类型。
Speech communication is an important and indispensable service in different modern communication systems.
在现代各种通信系统中，话音通信一直是一项重要的、必不可少的业务。
Microwave solid state source with low phase noise is one of the key parts in modern communication systems.
低相噪微波固态频率源是现代民用、军用通信系统的关键部件之一，对该技术的研究具有重要意义。
Although watching TV shows from the 1970s suggests otherwise, the era wasn't completely devoid of all things resembling modern communication systems.
尽管1970年代的电视节目普遍表达不同意见，但这个年代并非完全没有现代通讯系统的色彩。
Microstrip antenna arrays can meet smart antenna's demands of miniaturization and low cost and will be used widely in modern communication systems.
用微带阵列实现智能天线能够满足系统小型化、造价低的要求，这在现代通信中有着广泛地应用前景。
At last they were sent back to the far-end and generated acoustic echoes. This kind of echoes must be suppressed in the modern communication systems.
对声回声必需进行抑制，否则会严重影响通信系统的性能，引起啸叫等失效状态。
On the other hand, with the rapid development of VLSI, digital receiver and software defined radio have become a popular area in modern communication systems.
另外，随着集成电路技术的飞速发展，数字接收机和软件无线电也已经是现代通信研究的一个热点。
This paper gives an analysis of parasitic frequency deviation in the digital phase locked loop, which is one of the important specifications of modern communication systems.
本文分析了数字锁相环路的寄生频偏，它是现代通讯系统中频率合成器的重要指标之一。
In terms of time and space, Shared memory is probably the most efficient inter-process communication channel provided by all modern operating systems.
就时间和空间而言，共享内存可能是所有现代操作系统都具备的最高效的进程间通信通道。
The Cellular Mobile communication is Modern communications mainstream, but this communication systems has much randomicity, estimating this communication systems with the usual method is difficult.
蜂窝移动通信是现代通信的主流，但是这种通信系统的随机性很大，用通常的方法去估计它的通信系统的优劣是十分困难的。
In the modern communication, sonar and radar systems, we need to process huge data.
在现代通信、雷达和声纳系统中，需要进行非常复杂的数据处理。
The modern communication theory is used in the analysis of imaging systems. The object information density model is built for analogue and digital image respectively.
应用现代通信理论对成像系统进行了分析，建立了模拟和数字图像的目标信息密度模型。
Military communications and communication command management information system are important parts of modern integrated electronic information systems.
军事通信与通信指挥管理信息系统是现代综合电子信息系统的重要组成部分。
Random-walk filter is widely used in Bit Synchronizer of modern telemetry system and other digital communication systems in order to enhance anti-jamming ability and reliability of a system.
在现代遥测系统和其它相关的数字通信系统的码同步器中广泛采用了随机徘徊滤波器技术以提高电路的抗干扰能力和系统工作的可靠性。
Weapon systems, communication systems and so on in the modern war send electromagnetic waves with different intensity and frequency, which are pollution to the space.
在现代战场中，武器系统、通讯系统和干扰系统等均会发射出强度、频率不同的电磁信号，这些电磁信号会对战场空间构成严重的电磁污染。
With the rapid development of signal processing technology and micro-electronics technology, Digital Beam Forming (DBF) technique has been widely researched in modern radar and communication systems.
随着信号处理技术和微电子技术的飞速发展，数字波束形成(DBF)技术在现代雷达和通信系统中的应用越来越广泛。
However, according to the requirement of modern society for the flexibility of communication systems, parabolic antennas become get into trouble because of their traditional heavy, bulky structure.
但是，由于现代社会对通讯系统灵活机动的要求，传统的抛物面天线笨重、体积庞大的劣势已经日益显现。
In modern shortwave communication systems, the channels are mostly frequency-selective, multipath transmission causes the coherent attenuation and symbol interference.
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。
The dispatching management system introduces systems engineering method, based on computer technique and modern times communication technique, works for apiece work of dispatching management.
调度管理系统是用系统工程理论的方法，以计算机技术和现代通讯技术为基础，为调度各项管理工作服务的计算机管理信息系统。
Frequency synthesizer is one of the most important parts used in modern communication and electronic systems.
频率合成器是现代电子系统的重要组成部分，是决定电子系统性能的关键设备之一。
Frequency synthesizer is one of the most important parts used in modern communication and electronic systems.
频率合成器是现代电子系统的重要组成部分，是决定电子系统性能的关键设备之一。
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