Camera full-light-path image motion measurement system for optical remote sensing satellite

A measurement system and optical remote sensing technology, applied in the field of optical remote sensing satellites, can solve problems such as literature reports of an unseen all-optical path image shift measurement system, and achieve the effects of simplifying coordinate transformation steps, high connection rigidity, and simple composition

Inactive Publication Date: 2018-10-02
BEIJING INST OF SPACECRAFT SYST ENG
View PDF6 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are no literature reports on this kind of all-optical path image motion measurement system at home and abroad.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Camera full-light-path image motion measurement system for optical remote sensing satellite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0021] The vibration of the optical remote sensing satellite camera is divided into the overall camera shake and the micro-vibration of the optical components. The overall camera shake is measured by the external laser displacement meter, and the micro-vibration effect of the optical components is presented through the optical path simulation. The present invention provides an optical remote sensing satellite camera all-optical path image motion measurement system, comprising a camera body 1, a laser position sensor 2, a focal plane receiver 3, a primary mirror 4, a laser displacement meter I5, a tripod I6, data acquisition and Analysis system 7, secondary mirror 8, third mirror 9, two-way inertial vibration sensor 10, laser displacement meter II11 and tripod II12, such as figure 1 shown.

[0022] The two-way inertial vibration sensor 10 can emit a highly...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a camera full-light-path image motion measurement system for an optical remote sensing satellite. The system comprises laser displacement meters, a two-way inertia jitter sensor, a reflecting mirror, a laser position sensor and a data acquisition and analysis system, wherein the two-way inertia jitter sensor is fixed on a main mirror of a camera, the laser position sensor is fixed at a focal plane receiver, the two-way inertia jitter sensor converts vibration gesture change of the main mirror of the camera into a measurable laser signal, the laser signal is reflected bythe reflecting mirror, and a camera imaging full light path is received and simulated by the laser position sensor; two laser displacement meters are used for measuring the displacement change of themain mirror of the camera in a horizontal plane in two different directions, and the laser signals received by the laser position sensor are all transmitted to the data acquisition and analysis system for analysis and calculation, so that a camera full-light-path image motion vector is obtained. The influence of mutual coupling of vibration gestures of optical elements in light paths in the camera can be overcome, and the image motion vector under camera jittering and micro-vibration joint action is obtained accurately.

Description

technical field [0001] The invention relates to the technical field of optical remote sensing satellites, in particular to an all-optical path image motion measurement system for an optical remote sensing satellite camera. Background technique [0002] The payload cameras of optical remote sensing satellites have increasingly longer focal lengths, larger apertures, higher imaging precision, and are more sensitive to micro-vibrations and jitters. When the optical remote sensing satellite is in orbit, the disturbances generated by various moving parts on the star (such as CMG, momentum wheel, solar wing drive mechanism, etc.) work normally, resulting in a small elastic deformation of the structural parameters of the payload camera over time. , and the small reciprocating motion of the overall relatively stable posture over time, the former is called micro-vibration, and the latter is called jitter, which causes abnormal image motion. The imaging condition of the payload is cl...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01C11/02
CPCG01C11/02
Inventor 檀傈锰王光远袁宝峰丁健罗婕殷新喆管帅
Owner BEIJING INST OF SPACECRAFT SYST ENG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap