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Synthetic aperture optical imaging system and method based on microsatellite platform

An optical imaging system and synthetic aperture technology, applied in the field of space detection, can solve problems such as inability to repair it, and achieve the effects of convenient operation, reducing position error, and improving control accuracy

Inactive Publication Date: 2015-09-09
HARBIN INST OF TECH
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Problems solved by technology

[0004] Most of the current space-based synthetic aperture optical imaging system solutions, once the sub-mirror fails, it cannot be repaired in a short time

Method used

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  • Synthetic aperture optical imaging system and method based on microsatellite platform
  • Synthetic aperture optical imaging system and method based on microsatellite platform

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Embodiment Construction

[0019] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings, but it is not limited thereto. Any modification or equivalent replacement of the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention should be covered by the present invention. within the scope of protection.

[0020] Such as figure 1 As shown, the spatial distribution of the synthetic aperture optical imaging system based on the microsatellite platform provided by the present invention is composed of a microsatellite 1 , a sub-telescope system 2 and a beam combining system 5 . The micro-satellite platform distribution method is as follows: the payload sub-telescope system 2 of the micro-satellite 1 adopts three identical sub-telescope afocal systems (or more), and the micro-satellite 1 first adopts the circular flight mode of free formation. Its baseline len...

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Abstract

The invention discloses a synthetic aperture optical imaging system and a method based on a microsatellite platform. The synthetic aperture optical imaging system is formed by sub-telescope systems, optical delay line systems, sub-telescope light beam parallelism servo systems, a light beam synthesis system, an image reconstruction system and a computer control systems. The above sub-systems are installed on microsatellites. The microsatellites carrying the sub-telescope system flies in an annular manner adopting free formation and is controlled by the computer control system so that the base length thereof is changed. When resolution ratio demands required by a synthetic aperture is largely achieved, all the microsatellites are fixed in the relative positions by use of space rendezvous and docking technology so as to ensure the relative positions of the sub-telescope systems, thereby satisfying imaging requirements. According to the invention, it can be achieved that while resolution is increased, reliability of the system is enhanced, and the method has important application prospects in space detection aspects.

Description

technical field [0001] The invention belongs to the technical field of space detection such as military investigation and resource exploration, and relates to a synthetic aperture optical imaging system and method, in particular to a system and method for realizing optical synthetic aperture space detection based on a microsatellite platform. Background technique [0002] Synthetic aperture optical imaging technology is a relatively advanced and researched new imaging technology, which uses multiple small aperture optical systems to be equivalent to a single large aperture system, and its resolution is , so as to improve the spatial resolution, improve the imaging quality, and solve the problems of large volume and weight, difficult processing and detection, and high cost caused by a single large-aperture system. [0003] Micro-satellites have many advantages such as high functional density, short development cycle, fast technology update, and low cost, and can form a distr...

Claims

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Application Information

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IPC IPC(8): G01S17/89G02B27/00
CPCG01S17/90G02B27/0025
Inventor 朱瑶周程灏王治乐徐君孙婷婷
Owner HARBIN INST OF TECH
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