NSSC OpenIR  > 微波遥感部
Alternative TitleAnalysis of Active Microwave Cold Noise Source: Principles,and Applications
王振占; 董帅; 殷晓斌; 陆浩; 李彬
Source Publication遥感技术与应用
Keyword有源微波冷噪声源 微波辐射计定标 低温噪声测量
Other AbstractA new type of microwave noise source is introduced,which is called active cold noise source.Noise wave theory is used to predict the microwave noise temperature that exits port one of a two-port active device when port two is terminated with a matched load of known temperature.This noise temperature is of interest when characterizing and designing field-effect transistor(FET)- based cold noise sources.A design procedure capable of achieving a minimum noise temperature at a specific bias point is described.An active cold noise source using pHEMT has been realized at L-band for radiometer calibration.The application of active cold noise source is discussed,and an instance that using active cold noise source as radiometer calibration reference standard is presented.
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Document Type期刊论文
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GB/T 7714
王振占,董帅,殷晓斌,等. 有源微波冷噪声源的原理及其应用分析[J]. 遥感技术与应用,2017,32(2):247-254.
APA 王振占,董帅,殷晓斌,陆浩,&李彬.(2017).有源微波冷噪声源的原理及其应用分析.遥感技术与应用,32(2),247-254.
MLA 王振占,et al."有源微波冷噪声源的原理及其应用分析".遥感技术与应用 32.2(2017):247-254.
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