在20世纪40年代，空中交通管制中心能够而且确实利用了第二次世界大战中新研制的雷达和改进的无线电通讯，但是这个系统还处于初级阶段。
In the 1940s, ATC centres could and did take advantage of the newly developed radar and improved radio communication brought about by the Second World War, but the system remained rudimentary.
不过航空运输延迟和低效的主要原因还是过时的空中交通管制——一套依靠地面控制、反应迟缓的雷达站和不断重复的语音通讯建立起来的体系。
But delays and inefficiencies in air travel are due in large part to an outdated traffic-control system that still relies on slow, ground-based radar stations and repetitive voice communication.
固定频率源可以在在通讯系统和雷达系统中作为本机振荡器，也可以作为数字电路的基准时钟信号，因此得到了广泛的应用。
Single frequency source is usually used as local oscillator in communication system and radar system, also as a reference clock in digital circuits, so it is a extensive-applied technique.
该波段在各种远距离地面通讯或雷达工作中，均不能应用。
The wave band in each kind of long-distance range ground communication or the radar work, can not apply.
应用领域包括油田地震勘探、通讯、雷达跟踪、信号处理和状态估计等。
The application fields include oil seismic exploration, communication, radar tracking, signal processing and state estimation, and so forth.
可广泛用于导航、雷达、遥控遥测、模拟信号传输、数据采集和通讯系统、现代导航系统等领域。
It can be widely used in fields of navigation, radar, telecontrol, analogue signal transmission, data collection and communication system.
在现代雷达和通讯系统中，本振相位噪声越来越成为决定系统性能的关键因素。
In modern radar and communication system, phase noise of local oscillator (lo) becomes a vital factor of system performance.
实际应用中的许多信号，如通讯信号、某些雷达信号、地震波、声纳等，都是非平稳信号。
Many signals, such as communication signals, some radar signals, seismic waves and sonar, are all nonstationary signals.
该成果的硬件设备可适应不同的实时数字信号处理要求，应用于雷达、通讯、遥控、仪器、语音、智能等各种场合。
The hardware equipments are suitable for different real-time digital processing and apply to radar, communication, remote, instruments, voice and intelligence systems.
这种有机聚合物射频移相器可以在相控阵雷达系统和相控阵通讯中得到广泛应用。
It is expected that this RF phase shifter will be widely used in optically controlled phased array radar systems and phase controlled communication systems.
这种低频的离子噪声特别是相位噪声，会严重影响雷达系统的分辨能力和通讯系统的编码位错率。
The low frequency ion noise has negative influence on detectability in radar application and data rates in communication system.
MPM已经在雷达、电子对抗和通讯等领域得到应用。
MPM have been using widely in the fields of Radar, ECM, Communications and so on.
在远距离通讯和高分辨率雷达的应用中，要求天线具有高增益，反射面天线是使用最广泛的高增益天线。
High gain antenna is required in the long distance communications and high resolution radar applications in which reflector antenna is the most widely used one.
相控阵天线在雷达、通讯和气象等领域内得到了广泛的应用。
Phased array antennas are widely employed in radar, communication and weather field etc.
低噪放广泛地应用于宇宙通讯、雷达、电子对抗、遥测遥控、射电天文、大地测绘、微波通信等无线电通信系统中。
The Low Noise Amplifier is widely used in Universe Communication, Radars, Electronic Countermeasures, Telemetry and Remote Mapping, Radio Astronomy, Geodetic, Microwave Communications, etc.
行波管（TWT）广泛应用于雷达、通讯、广播、电子战、高功率微波武器研究、高能物理、电子对抗等各种电子设备中，是一种非常重要的微波器件。
The traveling wave tube (TWT) is an important high-power microwave resource, which has been applied in many fields such as radar, broadcasting, high-power microwave weapon and so on.
向列型液晶移相器具有独特的优势和发展潜力，不久的将来会在相控阵雷达以及卫星通讯等领域起到关键作用。
New nematic liquid crystal phase shifter has the unique advantages and potentials, will play an important role in phased-array radar, satellite communications in the near future.
对于等离子体加热、先进加速器、雷达、通讯及电子对抗、微波武器等领域有很大应用价值，受到了世界各国的高度重视。
And it can produce high output power in pulse and continuum wave. It can be used in plasma heating, accelerator, radar, communication, electron rivalry, microwave weapon and so on.
作为射频与微波系统的重要组件—微波功率薄膜电阻器可广泛应用于雷达、通讯、电子对抗等领域。
Microwave power thin film resistors were widely used as an important component of RF and microwave system in radar, communications, electron countermeasure et al.
宽带信号广泛应用于雷达、导航和卫星通讯等领域。
Wideband signals are widely used in radar, navigation, satellite communications and so on.
其统计结果对卫星通讯链路设计、自适应功率控制、雷达跟踪等方面有参考意义。
The main results for spectra analysing are outlined. The statistics is useful for designing radio link, adaptive power control and radar tracking.
主要用于激光加工机、激光通讯、激光雷达、激光图像遥感、激光干扰、声光频谱分析等领域，产品已得到广泛应用。
Mostly design to laser machine, laser communication, lidar, laser image remote sensing, laser jamming, acousto-optic spectral analysis region, product had been able to extensive use.
如果用这个频段的有源雷达来探测隐身飞机时，它会受到广播、电视和通讯信号的干扰，而无源雷达系统则不受这种干扰的影响。
If, on this frequency, the hiding aircraft is detected, the active radar will be interfered by the signals from the broadcast station, TV and communication stations, but the passive radar will not.
天线与电波传播：凡是借助于电磁波进行信息传输的系统，例如广播、电视、通讯、导航、雷达等，天线均是必不可少的重要组成部分。
Antenna and propagation: usually by means of electromagnetic wave for information transmission system, such as radio, television, communication, navigation, radar, antenna are an essential part of.
基于ICA的雷达抗干扰技术，基于ICA的扩频通讯抗多用户技术便是近年来这些发展趋势的代表。
The ICA-based radar anti-interference technology and ICA-based anti-multiuser interference technology are good cases in point.
基于ICA的雷达抗干扰技术，基于ICA的扩频通讯抗多用户技术便是近年来这些发展趋势的代表。
The ICA-based radar anti-interference technology and ICA-based anti-multiuser interference technology are good cases in point.
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