Satellite-borne terahertz atmospheric profile detector

Abstract

The invention discloses a satellite-borne terahertz atmospheric profile detector. The detector comprises an antenna and feed network, a receiver module, two calibration bodies and a data processing unit, wherein the antenna and feed network is used for respectively carrying out reflection and quasi-optical separation on two paths of atmospheric brightness temperature signals, respectively formingtwo paths of high-frequency reflected waves and two paths of low-frequency transmitted waves, and inputting the two paths of high-frequency reflected waves and the two paths of low-frequency transmitted waves into the receiver module; the receiver module comprises receivers of six detection frequency bands; the receivers of two detection frequency bands are combined into a temperature detection channel for detecting vertical distribution of the atmospheric temperature; the receivers of two detection frequency bands are combined into a humidity detection channel for detecting vertical distribution of the atmospheric humidity; the receivers of two detection frequency bands are used for detecting cirrus cloud, liquid water content and heavy rainfall; and the data processing unit is used for providing a normal working time sequence, controlling the reflection angle of the antenna and feed network, and carrying out acquisition quantification, storage and downloading on the data of the receiver module.

Description

technical field [0001] The invention relates to an atmospheric profile detector in the field of microwave remote sensing technology, in particular to a spaceborne terahertz atmospheric profile detector. Background technique [0002] As a passive microwave remote sensor, the spaceborne atmospheric profile sounder is a microwave radiometer used to measure atmospheric temperature and humidity profiles as a satellite payload. The space-borne atmospheric profiler can observe space weather data such as the vertical distribution of global atmospheric temperature and humidity, water vapor content and rainfall all-day and all-weather, and plays an important role in atmospheric detection. At the same time, the atmospheric profiler is of great significance for improving the numerical weather prediction model, improving the accuracy of local and short-term disastrous antenna forecasts such as typhoons and rainstorms, and the accuracy of mid- and long-term global climate forecasts. [0...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to overcome the problem that the above-mentioned microwave radiometer cannot detect high-level atmospheric temperature and humidity profiles, and provides a space-borne terahertz atmospheric profile detector, which can detect the vertical distribution of high, medium and low-level atmospheric temperature and humidity profiles in combination, Has a more comprehensive detection capability

Images