Ground-based microwave spectroradiometer for thermal sounding of the troposphere
| Autor: | L. M. Kukin, A. A. Shvetsov, M. Yu. Kulikov, V. G. Ryskin, A. M. Shchitov, Alexander Feigin, L. I. Fedoseev |
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| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Spectrum analyzer Materials science 010504 meteorology & atmospheric sciences business.industry Superheterodyne receiver 01 natural sciences Low-noise amplifier law.invention Depth sounding Spectroradiometer Optics law 0103 physical sciences Calibration Antenna (radio) business Instrumentation Microwave 0105 earth and related environmental sciences Remote sensing |
| Zdroj: | Instruments and Experimental Techniques. 59:433-436 |
| ISSN: | 1608-3180 0020-4412 |
| Popis: | The laboratory model of a mobile solid-state uncooled microwave spectroradiometer, operating in the frequency range of 50 to 55 GHz is described. It is designed for remote passive monitoring of the tropospheric temperature. The spectroradiometer consists of a heterodyne receiver with a low noise amplifier at input and 8-channel spectrum analyzer. To ensure the internal calibration of the intensity of the received atmospheric radio emission using the built-in unit type modulator-calibrator based on GaAs diodes with the Schottky barrier. The antenna system of the spectroradiometer consists of a teflon enlightened lens and conical corrugated horn. The device is equipped with an automated control system process measurement, calibration, and data pre-processing. |
| Databáze: | OpenAIRE |
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