Laser satellite-ground communication link test system suitable for remote sensing satellite

A remote sensing satellite and communication link technology, applied in the field of satellite system-level comprehensive testing, can solve problems such as no system and standards have been formed, and achieve the effect of comprehensive testing functions

Active Publication Date: 2014-01-08
BEIJING INST OF SPACECRAFT SYST ENG
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The application of space-borne laser communication technology is just in its infancy, and there is no complete system and standard for ground comprehensive testing.

Method used

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  • Laser satellite-ground communication link test system suitable for remote sensing satellite
  • Laser satellite-ground communication link test system suitable for remote sensing satellite
  • Laser satellite-ground communication link test system suitable for remote sensing satellite

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Embodiment Construction

[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0015] The composition principle of the test system is as follows: figure 1 As shown, it consists of ground terminal simulation system 1, signal demodulation processing system 2, tracking and retesting system 3 and data display terminal 11;

[0016] The ground terminal simulation system 1 includes a tracking and capturing antenna 4, an optical signal transceiver unit 5 composed of a splitting module 12, a transmitting module 13 and a receiving CCD module 14, a photoelectric conversion module 6, a main control unit 7 and an optical performance testing module 8, and the tracking and capturing antenna 4 Receive the optical signal sent by the remote sensing satellite, forward the received optical signal to the optical splitting module 12, and the optical splitting module 12 splits the optical signal to form two optical signals, one of which is tested by the optic...

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Abstract

The invention discloses a laser satellite-ground communication link test system suitable for a remote sensing satellite. The satellite-ground laser communication link test system suitable for the remote sensing satellite comprises a ground terminal analog system, a signal demodulation processing system and a data display terminal. A verification test system designed by the invention mainly satisfies the function and performance test of the satellite under the state of an assembly plant and a large environment test, an uplink dynamic laser signal matched with on-satellite receiving is provided, a normal satellite-ground communication link is established with an on-satellite terminal, a ground laser communication station is simulated to send an uplink beacon signal, a demodulation satellite downlink laser communication signal is received, an uplink and downlink link optical signal transmission bit error rate test, a data rate test and optical energy measurement can be finished, the test of emission wavelength and emission power can be finished, and the test system has comprehensive test functions.

Description

technical field [0001] The invention relates to a test system, in particular to a test system suitable for remote sensing satellite laser satellite-ground communication links, which belongs to the field of satellite system level comprehensive test. Background technique [0002] The space-borne laser communication system uses laser as the carrier of data transmission to complete the tasks of capture and tracking with the laser ground station and two-way data transmission between the satellite and the ground to meet the user's demand for high-quality, large-capacity, and high-bit-rate data communication transmission. Laser communication requires large-capacity Information is transmitted in real time, featuring high reliability and high confidentiality. According to the orbit of the satellite, the ground comprehensive test simulates the satellite-ground capture and tracking process according to the flight program. The specific process is as follows: the satellite-borne laser co...

Claims

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Application Information

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IPC IPC(8): H04B17/00H04B10/07H04B17/30
Inventor 张帅赵利民纪强王清泉高阳胡杰彭亏张英辉杨黎
Owner BEIJING INST OF SPACECRAFT SYST ENG
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