A Spaceborne Microwave Atmospheric Sounder

A spaceborne microwave and detector technology, which is applied in the field of microwave remote sensing, can solve the problems of the standing wave ratio change and signal fluctuation of the antenna feeder system, and achieve the effects of reducing system noise temperature, low DC power consumption, and small size
CN107450074BInactive Publication Date: 2019-07-09NAT SPACE SCI CENT CAS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NAT SPACE SCI CENT CAS
Publication Date
2019-07-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a space-borne microwave atmospheric sounding instrument, which comprises feed sources, calibration bodies, a motor, plane mirrors, parabolic reflectors, a scanning drive control module, multiplexers and receiver units. The motor is controlled by the scanning drive control module to drive the plane mirror to rotate. The plane mirrors reflect received electromagnetic wave signals to the parabolic reflectors in the form of plane waves by scanning the atmosphere and the calibration bodies. The parabolic reflectors realize secondary reflection to enable the plane waves to be reflected to the corresponding feed sources arranged opposite thereto. The multiplexers are used for separating the frequency of the electromagnetic wave signals received by the feed sources respectively. Each receiver unit comprises a plurality of receivers parallel with the output end of the corresponding multiplexer, and is used for receiving the electromagnetic wave signals matched with the frequency thereof. The space-borne microwave atmospheric sounding instrument has the advantages of being high in performance, high in integration, low in weight and low in power consumption.
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Description

technical field

[0001] The invention relates to the technical field of microwave remote sensing, in particular to a satellite-borne microwave atmospheric detector. Background technique

[0002] Atmospheric temperature and humidity profiles, as important meteorological parameters, are currently detected mainly by spaceborne or ground-based microwave atmospheric temperature and humidity profile detectors; by obtaining the brightness temperature information of the detected atmosphere, the temperature and humidity of the atmosphere can be measured. The detector can obtain global atmospheric vertical temperature and humidity profiles around the clock, obtain cloud and rain atmospheric parameters closely related to strong convective weather phenomena such as typhoons and heavy rains, and provide initial field information of atmospheric temperature and humidity for numerical weather forecasting.

[0003] At present, space-borne microwave atmospheric temperature and humidity detecto...

Claims

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