In the paper, the source and sorting of noise in microwave communication receiving system is described; and noise coefficient and network noiseness are analysised in detail.
本文全面论述了微波通信接收系统的噪声来源和分类，并较详细地分析了噪声系数及网络的噪声特性。
Therefore , the subject is to study the design theory and engineering realization of the low phase-noise phase locked source in microwave band.
在这样的背景下，本课题对低相位噪声微波锁相源的设计理论和工程实践进行了研究。
In this paper a microwave standard noise source which produces noise by healing a metal filament is described.
本文介绍了一种用加热金属丝来产生噪声的微波标准噪声源。
The inverse radiation noise of a microwave radiometer for remote sensing is analysed in this paper. A model is used to determine the bright temperature of an aperture-calibration source.
本文分析了遥感微波辐射计的逆向辐射噪声温度和口面定标源的亮度温度，建立了口面定标源的亮度温度模型。
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。
This speciality standard will give a go-ahead for using as the reference of the cold and room-temperature microwave noise standard source below 3dB ultra-low-noise received system.
本标准批准后即作为噪声系数3分贝以下低噪声精密测试时的“冷热源”专业技术标准。
This speciality standard will give a go-ahead for using as the reference of the cold and room-temperature microwave noise standard source below 3dB ultra-low-noise received system.
本标准批准后即作为噪声系数3分贝以下低噪声精密测试时的“冷热源”专业技术标准。
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