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High-altitude atmosphere density online detection and calculation method

A high-altitude atmosphere and calculation method technology, applied in the field of laser detection, can solve problems such as difficulty in obtaining atmospheric density parameters, and achieve the effect of no blind zone movement, light equipment, and easy movement

Inactive Publication Date: 2017-05-31
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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Problems solved by technology

It is difficult to obtain the atmospheric density parameters of the upper atmosphere, especially the real-time background conditions of the upper atmosphere, by the on-site measurement method adopted by the ground.

Method used

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  • High-altitude atmosphere density online detection and calculation method
  • High-altitude atmosphere density online detection and calculation method
  • High-altitude atmosphere density online detection and calculation method

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Embodiment Construction

[0034] Such as figure 1 , 2 As shown, the online detection and calculation method of high-altitude atmospheric density uses continuous laser as the emission light source, uses the camera to receive the laser echo signal from the atmosphere, and obtains the atmospheric density information by analyzing and processing the laser echo image; specifically includes the following steps:

[0035] (1) A diode-pumped continuous laser is used to emit laser light, a spectroscope is set on the front optical path of the laser, a power monitor is set on the reflected light path of the spectroscope, and the laser and the power monitor are connected to the computer;

[0036] (2) The laser beam output by the laser, a part of the laser beam is shot into the atmosphere through the beam splitter, and a part of the laser beam enters the power monitor after being reflected by the mirror mirror;

[0037] (3) The laser beam shot into the atmosphere is subjected to the action of atmospheric molecules i...

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Abstract

The invention discloses a high-altitude atmosphere density online detection and calculation method which uses continuous lasers as a light emitting source, utilizes a photographing machine to receive the laser echo signals from the atmosphere, and analyzes and processes the laser echo images to obtain the atmosphere density information. The device adopted by the method of the invention is light, has a high space-time resolution, and possesses the advantages of rapid detection, continuous operation day and light, high automation, blind area exemption and easy mobility. Therefore, the method could be used by most military and civil aviation vehicles to measure atmosphere density.

Description

technical field [0001] The invention belongs to the technical field of laser detection, in particular to an online detection and calculation method of high-altitude atmospheric density. Background technique [0002] High-altitude atmospheric density is an important factor affecting the speed and direction of high-altitude aircraft. It is difficult to obtain the atmospheric density parameters of the upper atmosphere, especially the real-time background conditions of the upper atmosphere, by the field measurement method adopted by the ground. This method uses laser remote sensing means, installed on the high-altitude aircraft, obtains the atmospheric density parameters around the movement path in real time, and provides first-hand data for the aircraft. Contents of the invention [0003] The invention provides an online detection and calculation method of high-altitude atmospheric density, which adopts the separate design of laser emission and reception, uses a diode-pumped...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/89G01N21/47
CPCG01N21/47G01N2021/4709G01S17/89
Inventor 刘小勤侯再红秦来安翁宁泉
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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