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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

Inactive Publication Date: 2019-07-09
NAT SPACE SCI CENT CAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a high-performance, Highly integrated, low weight, low power consumption, miniaturized spaceborne microwave atmospheric sounder

Method used

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  • A Spaceborne Microwave Atmospheric Sounder
  • A Spaceborne Microwave Atmospheric Sounder
  • A Spaceborne Microwave Atmospheric Sounder

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Embodiment Construction

[0018] A spaceborne microwave atmospheric sounder according to the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] Such as figure 1 As shown, the present invention provides a spaceborne microwave atmospheric sounder, which comprises: a plane mirror, a parabolic reflector, a motor, a scanning drive control module, a feed source, a multiplexer, a receiver unit, and a calibration body . The motor drives the plane mirror to rotate under the control of the scanning drive control module, so that the plane mirror can perform atmospheric detection scanning and calibration. The plane mirror reflects the received electromagnetic wave signal to the parabolic reflector in the form of a plane wave by scanning the atmosphere and the calibration body, and the parabolic reflector re-reflects the plane wave into the feed source opposite to it. The multiplexer is used to separate the frequency of the electromagnetic w...

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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.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S13/95G01S7/35G01S7/285
CPCG01S7/285G01S7/352G01S13/955Y02A90/10
Inventor 王婧张瑜张升伟赵鑫何杰颖封天王振占王新彪
Owner NAT SPACE SCI CENT CAS
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