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Satellite laser communication composite tracking and pointing vibration suppression device and control method

A technology of laser communication and vibration suppression, which is applied in satellite communication transmission, sustainable communication technology, advanced technology, etc., can solve problems such as inaccurate prediction signals and unloading errors of rough tracking and aiming systems, so as to avoid the increase of prediction errors, The effect of reducing satellite carrying power consumption and high tracking accuracy

Active Publication Date: 2014-02-12
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

When predicting and filtering the position deviation signal of fine tracking, due to the discreteness of the deviation signal, the obtained prediction signal will not be very accurate, which will bring errors to the unloading of the rough tracking and aiming system

Method used

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  • Satellite laser communication composite tracking and pointing vibration suppression device and control method
  • Satellite laser communication composite tracking and pointing vibration suppression device and control method

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Embodiment Construction

[0018] The present invention will be further described in detail below with reference to the drawings and embodiments, but the protection scope of the present invention should not be limited by this.

[0019] See first figure 1 , figure 1 It is a block diagram of the satellite laser communication composite tracking and pointing vibration suppression device of the present invention. It can be seen from the figure that the satellite laser communication composite tracking and pointing vibration suppression device of the present invention includes a satellite platform 1 and a satellite laser tracking and pointing system. The satellite laser tracking and pointing system includes a coarse tracking and pointing system 21, a telescope system 22, and a fine tracking and pointing system 23. A transflective mirror M1, a second transflective mirror M2, a half mirror M3, a capturing and tracking sensor 24, a communication tracking sensor 26, and a signal receiver 27 are composed. The positiona...

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Abstract

The invention discloses a time-sharing compensation-based satellite laser communication composite tracking and pointing vibration suppression device and a control method. The device comprises a satellite platform and a satellite laser tracking and pointing system, wherein the satellite laser tracking and pointing system comprises a rough tracking and pointing system, a telescope system, a fine tracking and pointing system, a first transflective lens, a second transflective lens, a transflective lens, an acquisition and tracking sensor, a communication tracking sensor and a signal receiver. The system is characterized in that: a signal judgment device is also arranged between the satellite platform and the satellite laser tracking and pointing system; the signal decision device judges a dither signal of the satellite platform and triggers the fine tracking and pointing system to perform complementary tracking and pointing through a corresponding trigger switch according to the judgment result, or triggers a composite system formed by the rough tracking and pointing system and the fine tracking and pointing system to perform the complementary tracking and pointing. The device realizes the time-sharing tracking and pointing compensation of the rough tracking and pointing system and the fine tracking and pointing system, improves tracking and pointing efficiency, and greatly reduces the carrying power of a satellite.

Description

Technical field [0001] The invention relates to the technical field of satellite laser communication links. It is a satellite laser communication composite tracking and pointing vibration suppression device and control method based on time-sharing compensation. It is used for aiming, capturing and tracking between two satellites and has a large scanning range, High tracking accuracy and high servo bandwidth optical tracking and aiming capabilities. The coarse tracking and aiming system performs time-sharing compensation for the fine tracking and aiming system, which can greatly reduce the power consumption of satellite transportation and improve the tracking and aiming efficiency of satellite optical communication. Background technique [0002] Compared with the existing radio frequency communication, satellite laser communication has many advantages such as high transmission rate, large communication capacity, low power consumption, small size, light weight, anti-interference and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/118H04B7/185H04B10/11
CPCY02D30/70
Inventor 鲁伟刘立人孙建锋周煜闫爱民
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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