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Geosynchronous orbit target optical observation exposure time dynamic control method

A technology of geosynchronous orbit and exposure time, which is applied in the field of space target detection, can solve problems such as the inability to guarantee stable target detection, and achieve the effect of improving detection efficiency and improving detection efficiency

Active Publication Date: 2021-05-07
PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
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  • Application Information

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Problems solved by technology

In the actual detection process, since the brightness of the satellite is closely related to the phase angle, the brightness of the target at different dates, different times, and different fixed-point longitudes also changes continuously, and the constant exposure time of the telescope cannot guarantee the stable detection of the target.

Method used

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  • Geosynchronous orbit target optical observation exposure time dynamic control method
  • Geosynchronous orbit target optical observation exposure time dynamic control method
  • Geosynchronous orbit target optical observation exposure time dynamic control method

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Embodiment Construction

[0089] The present invention will be further elaborated below in conjunction with embodiment.

[0090] The invention proposes a method for estimating the illuminance change of the target arriving at the telescope according to the detection sky area and the observation window, and then dynamically adjusting the exposure time of the telescope, so as to realize the stable detection ability of the GEO target.

[0091] A dynamic control method for the exposure time of geosynchronous orbit targets in optical observation, such as figure 1 As shown, it specifically includes the following steps:

[0092] Step 1. Establish GEO optical monitoring system: if figure 2 As shown in , the telescope is set on the ground, and the observation target sphere is located in extraterrestrial space.

[0093] Step 2, establish the calculation equation of the observation target sphere OCS, establish the calculation equation of the observation target sphere magnitude m; the calculation equation of the...

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Abstract

The invention relates to a geosynchronous orbit target optical observation exposure time dynamic control method, and belongs to the technical field of space target detection. The invention provides a method for dynamically adjusting the exposure time of a telescope by estimating the illuminance change condition of a target reaching a telescope according to a detection sky area and an observation window so as to realize the stable detection capability of a GEO target.

Description

technical field [0001] The invention belongs to the technical field of space target detection, and relates to a dynamic control method for optical observation exposure time of geosynchronous orbit targets. Background technique [0002] The geosynchronous orbit (Geosynchronous Orbit, GEO) target has the characteristics of approximately remaining stationary relative to the earth, and has high strategic value. When radar detects and detects GEO targets, the detection capability is greatly restricted due to the long distance. Using optical telescopes, especially large-field telescopes, to scan and detect high-orbit targets is an effective means of detection. When performing optical scanning detection on the GEO distribution zone, it is hoped to maintain the same detection capability for GEO targets in all visible sky areas, that is, to be able to detect targets of the same size no matter under any lighting conditions, so as to maintain the catalog of all targets , to improve d...

Claims

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Application Information

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IPC IPC(8): G05B19/04
CPCG05B19/04
Inventor 徐灿许洁平李智张雅声马志昊方宇强周海俊王阳殷智勇张喜涛宋万均
Owner PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
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