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Middle and high layer atmosphere density separation type detector

A separate technology of atmospheric density, applied in the field of space detection, can solve the problems of high cost and inability to obtain the distribution information of atmospheric density in the whole space, and achieve the effect of simplifying the atmospheric resistance model and reducing measurement noise

Inactive Publication Date: 2015-03-04
BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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Problems solved by technology

[0017] The technical problem to be solved by the present invention is: in the existing middle and upper atmospheric density detection methods, ground-based radio radar or laser radar can only detect the limited area above the ground, and cannot obtain the atmospheric density distribution information of the whole space; occultation The detection is based on the occultation event of more than two satellite configurations, and the cost is relatively high; balloon and rocket detection can only achieve atmospheric parameters in local space.

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  • Middle and high layer atmosphere density separation type detector
  • Middle and high layer atmosphere density separation type detector
  • Middle and high layer atmosphere density separation type detector

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Embodiment Construction

[0042] The present invention will be further described now in conjunction with accompanying drawing.

[0043] The middle and upper atmosphere density separation detector is a specially designed tiny satellite, which is substituted into an orbit of more than 300 kilometers by rocket or satellite, and then separated from the rocket or parent star by ejection, and runs along the orbit. Since the separated load has no propulsion system, its orbital altitude gradually decreases under the action of atmospheric resistance until it re-enters the atmosphere and burns up near an altitude of 80 kilometers. The spherical shape ensures that the atmospheric drag coefficient of the separated load is constant, regardless of the satellite attitude, and can be calibrated before launch through wind tunnel experiments.

[0044] In the process of moving along the track, it spins at an angular velocity of 10RPM (10 revolutions per minute) in the orbital plane (the corresponding angular frequency is...

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Abstract

A middle and high layer atmosphere density separation type detector comprises a universal module with a microsatellite platform, and is characterized by further comprising a spherical structural body shell used for simplifying an atmosphere resistance analysis model, an accelerometer, a GPS receiver and an attitude control system, the surface of the special structural body shell is covered with a solar cell, the accelerometer is arranged in the spherical structural body shell, the accelerometer is formed by distributing 4 to 6 static suspension type accelerometers around the axis, the accelerometer is used for measuring the atmosphere resistance, the GPS receiver is arranged in the spherical structural body shell and used for tracking and monitoring the track speed and the position of a microsatellite, the attribute control system is arranged in the spherical structural body shell and used for controlling the attribute of the microsatellite so as to keep the spinning of the satellite stable and ensure the correct directing of a GPS receiver antenna and a data transmission antenna.

Description

Technical field: [0001] The invention relates to a middle and upper atmosphere density separation detector, which belongs to the field of space detection and is mainly used in space environment modeling, satellite orbit forecasting, strategic missile precision guidance and the like. Background technique: [0002] There are currently several methods for detecting parameters such as the density of the middle and upper atmosphere: [0003] 1. Medium frequency (MF) radar, very high frequency (VHF) radar and meteor radar [0004] MF radars, VHF radars and meteor radars are all capable of measuring mesosphere and low thermosphere wind profiles. The medium frequency radar can be used to measure the atmospheric wind field and electron density of 60-100km. The altitude of 60-100km belongs to the lower part of the ionosphere D area and E area, the collision frequency between electrons and neutral atmospheric components is relatively high, and the movement speed of electrons and neut...

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Application Information

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IPC IPC(8): G01S13/95
CPCG01N9/00Y02A90/10
Inventor 刘国青黄建国姜利祥焦子龙张超朱云飞
Owner BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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