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A fast pointing and tracking device and method

A fast, azimuth technology, applied in measurement devices, instruments, control without feedback, etc., can solve problems such as loss of stellar target, large pointing error, long polar axis alignment time, etc., to eliminate error accumulation, strong resistance Interference ability, the effect of improving practicability and application value

Active Publication Date: 2020-08-11
CHANGCHUN UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there are two main ways to track stars. One is to use equatorial mounts to point and track stars, but there are disadvantages such as long time for polar axis alignment and large pointing errors. , the error cumulative effect will cause the tracked star to run out of the tracking field of view and cause the target to be lost
The second is to use the photoelectric imaging tracking system to track stars to achieve high tracking accuracy, but when occlusion occurs, the tracked star target will be lost
However, combining the two tracking methods in an appropriate way to complete the tracking of stars has not been reported yet.

Method used

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  • A fast pointing and tracking device and method

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Embodiment 1

[0020] Computer 1, optical system 2, filter 3, CCD camera 4, first GPS antenna 5, second GPS antenna 6, GPS / INS host 7, connection board 8, target mirror 9, equatorial mount 10, bracket 11 According to the manual figure 1 way connected together.

[0021] The implementation steps are as follows:

[0022] (1) Turn on the computer 1, the CCD camera 4, the GPS / INS host 7, and the equatorial mount 10 for self-inspection after power-on respectively, and enter the working state.

[0023] (2) Select the star as Sirius, use the optical system 2, filter 3, and CCD camera 4 to image Sirius, calculate the coordinates of the spot position through the spot centroid algorithm, and adjust the equatorial mount 10 so that Sirius is imaged at the center of the target surface of the CCD camera 4 .

[0024] (3) Set up a geographic coordinate system with the position point of the equatorial mount as the center of the coordinate circle, and obtain the position coordinates, pitch angle, and azimut...

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Abstract

The invention relates to a rapid orientation and tracking device. The device is characterized in that an optical system, a filter, a CCD camera, a first GPS antenna, a second GPS antenna and a GPS / INS host computer are sequentially fixedly connected with an upper portion of the connection board, a viewing mirror is fixedly connected with a lower portion of the connection board, the connection board is arranged on an equatorial instrument, the equatorial instrument is arranged on a support, the CCD camera is connected with the computer through a cable, the first GPS antenna is connected with the GPS / INS host computer through a cable, the second GPS antenna is connected with the GPS / INS host computer through a cable, the GPS / INS host computer is connected with the computer through a cable, and the equatorial instrument is connected with the computer through a cable. The device is advantaged in that rapid orientation and high precision tracking of a selected fixed star or a target can be accomplished, polar axis alignment of the equatorial instrument can be realized through the position and attitude angle information provided by a double-antenna GPS / INS combined navigation and positioning system, the Kalman filtering technology is utilized to combine a photoelectric imaging tracking system with an equatorial instrument tracking system for application, and the system is made to have relatively strong anti-interference capability.

Description

technical field [0001] The invention relates to a fast pointing and tracking device and method, belonging to the technical field of automatic control. [0002] technical background [0003] At present, there are two main ways to track stars. One is to use equatorial mounts to point and track stars, but there are disadvantages such as long time for polar axis alignment and large pointing errors. , the error cumulative effect will cause the tracked star to go out of the tracking field of view and cause the target to be lost. The second is to use the photoelectric imaging tracking system to track the stars to achieve high tracking accuracy, but when there is an occlusion, the tracked star target will be lost. However, combining the two tracking methods in an appropriate way to complete the tracking of stars has not been reported yet. [0004] Here we propose a composite method of pointing and tracking stars, combining equatorial mount tracking and photoelectric tracking with K...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/49G05D3/10
CPCG01S19/49G05D3/10
Inventor 赵馨张雷宋延嵩刘云清董科研
Owner CHANGCHUN UNIV OF SCI & TECH
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