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Test system for impact analysis of imaging quality of TDICCD (Time Delayed Integration Charge Coupled Device) by multi-source interference

A technology for imaging quality and impact analysis, applied in the direction of measuring devices, instruments, etc., can solve problems such as large impact on imaging quality, multi-source interference measurement, etc., and achieve the effect of saving time

Inactive Publication Date: 2013-01-09
山东中宇航空科技发展有限公司
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Problems solved by technology

However, due to TDICCD's requirements on platform stability and the influence of complex space dynamics experienced by satellites in orbit, high-resolution observations based on TDICCD are facing great challenges
At present, some camera companies use small gyroscopes to detect the vibration of CCD cameras, but their research methods are limited to the vibration detection of CCD cameras and manual shooting on the ground, and do not involve the ground simulation of TDICCD cameras and agile mobile satellites for ground imaging.
Some other institutions have conducted ground test analysis on the imaging of the spaceborne TDICCD camera, but they have not made specific measurements on the multi-source interference caused by the satellite platform to the imaging of the TDICCD camera, especially the CMGs that have a greater impact on the imaging quality of the satellite platform. high frequency interference

Method used

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  • Test system for impact analysis of imaging quality of TDICCD (Time Delayed Integration Charge Coupled Device) by multi-source interference
  • Test system for impact analysis of imaging quality of TDICCD (Time Delayed Integration Charge Coupled Device) by multi-source interference
  • Test system for impact analysis of imaging quality of TDICCD (Time Delayed Integration Charge Coupled Device) by multi-source interference

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Embodiment Construction

[0022] Such as figure 1 , 2 As shown, the present invention is composed of error source interference and its equivalent subsystem, TDICCD imaging subsystem and optical target, attitude error and its interference measurement subsystem, signal acquisition and processing subsystem, wireless communication and ground comprehensive processing subsystem ; Wherein the error source interference and its equivalent subsystem include a three-axis air-floating turntable 1, a solar panel simulation device 2 and CMGs12; the TDICCD imaging subsystem and the optical target include a TDICCD camera 9 and a target disk 10; attitude error and its interference measurement The subsystem includes GPS4, three fiber optic gyroscopes 3, the first accelerometer 5 and the second accelerometer 11; the signal acquisition and processing subsystem includes the star management computer 6 simulation computer 7 and the first wireless network bridge 8; wireless communication and ground The integrated processing ...

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Abstract

The invention relates to a test system for impact analysis of imaging quality of TDICCD (Time Delayed Integration Charge Coupled Device) by multi-source interference, which can be divided into an error source interference and an equivalent sub system thereof, a TDICCD imaging sub system, an optical target, gesture error and an interference measuring sub system thereof, a signal collecting and processing sub system, and a wireless communication and ground comprehensive processing sub system. The error source interference and the equivalent sub system thereof is used to simulate interference generated by a solar sailboard / a control torque gyro system (CMGs) and a satellite platform in a spatial environment for the satellite. The measuring sub system is used to measure the gesture angle of the satellite platform and the vibrating linear velocity. The signal collecting and processing sub system collects sensor information and processes and analyzes and calculates the information correspondingly. According to the invention, main interference by motion errors of the satellite to the imaging quality of the TDICCD is simulated in the spatial environment on the ground, and the impact analysis of the imaging quality of the TDICCD by the multi-source interference is realized by combining a floating turntable for dynamical test and analysis of satellite gesture.

Description

technical field [0001] The invention relates to an analysis and testing system for the influence of multi-source interference on TDICCD (Time Delayed Integration Charge Coupled Device) imaging quality, which is suitable for simulating the multi-source interference caused by agile mobile satellites with maglev CMGs as actuators on TDICCD remote sensing imaging. Background technique [0002] In the 21st century, due to the traction of space science tasks, the improvement of mobile satellite capabilities and the rapid development of remote sensing loads, it is possible to use a single TDICCD camera strapdown installed on an agile mobile satellite for large-width, high-precision multi-level stereoscopic imaging. However, due to TDICCD's requirements on platform stability and the influence of complex space dynamics experienced by satellites in orbit, high-resolution observations based on TDICCD are facing great challenges. At present, some camera companies use small gyroscopes to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C25/00
Inventor 杨照华王浩刘鸣鹤
Owner 山东中宇航空科技发展有限公司
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