| TWO NEW TYPES OF MICROWAVE RADIOMETER: A COMPUTER GAIN COMPENSATIVE DESIGN AND A REAL-TIME CALIBRATED DESIGN |
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| 作者姓名： | Li Jing |
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| 作者单位： | Li Jing (Center for Space Science and Applied Research，CAS，Beijing 100080)Zhang Junrong (Changchun Institute of Geography，CAS，Changchun 130021) |
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| 摘 要： | Long term stability is the main factor that influences the minimum detectable signal of microwave radiometers. Two new types of microwave radiometer were studied: a computer gain compensative microwave radiometer and a real-time calibrated microwave radiometer. The long term stability of both designs was optimal because they were insensitive to system gain fluctuations. The continuous calibrated microwave radiometer was also insensitive to system noise fluctuations. The minimum detectable signals were 0.13 and 0.19K respectively under an integration time of 0.6s.
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Two new types of microwave radiometer: A computer gain compensative design and a real-time calibrated design |
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| Li Jing.TWO NEW TYPES OF MICROWAVE RADIOMETER: A COMPUTER GAIN COMPENSATIVE DESIGN AND A REAL-TIME CALIBRATED DESIGN[J].Journal of Electronics,1999,16(3):277-283. |
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| Authors: | Jing Li Junrong Zhang |
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| Affiliation: | (1) Center for Space Science and Applied Research, CAS, 100080 Beijing;(2) Changchun Institute of Geography, CAS, 130021 Changchun |
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| Abstract: | Long term stability is the main factor that influences the minimum detectable signal of microwave radiometers. Two new types of microwave radiometer were studied: a computer gain compensative microwave radiometer and a real-time calibrated microwave radiometer. The long term stability of both designs was optimal because they were insensitive to system gain fluctuations. The continuous calibrated microwave radiometer was also insensitive to system noise fluctuations. The minimum detectable signals were 0.13 and 0.19K respectively under an integration time of 0.6s. |
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| Keywords: | Microwave radiometer Computer gain compensative microwave radiometer Real-time calibrated microwave radiometer |
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