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Clock homology Beidou/GPS aviation augmentation system based on analog light transmission

An enhanced system, GPS navigation technology, applied in the field of ground-based aviation enhanced processing system, to achieve the effect of increasing transmission distance, easy installation, and not easy to damage

Inactive Publication Date: 2015-01-07
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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AI Technical Summary

Problems solved by technology

[0005] The Beidou / GPS ground-based aviation enhanced processing system of the present invention uses analog optical transmission technology to transmit the signal of the Beidou / GPS active antenna to the receiving and processing board through optical fibers, which solves the problem of transmission distance in the centralized installation mode

Method used

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  • Clock homology Beidou/GPS aviation augmentation system based on analog light transmission
  • Clock homology Beidou/GPS aviation augmentation system based on analog light transmission
  • Clock homology Beidou/GPS aviation augmentation system based on analog light transmission

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Embodiment Construction

[0026] refer to Figure 1 to Figure 3 , the present invention consists of a first antenna 1, a first low noise amplifier 2, a first optical transmitting module 3, a first optical fiber 4, a first optical receiving module 5, a first receiving processing board 6, a second antenna 7, a second low Noise amplifier 8, second optical transmitting module 9, second optical fiber 10, second optical receiving module 11, second receiving processing board 12, third antenna 13, third low noise amplifier 14, third optical transmitting module 15, the third Three optical fibers 16, a third optical receiving module 17, a third receiving processing board 18, a fourth antenna 19, a fourth low noise amplifier 20, a fourth optical transmitting module 21, a fourth optical fiber 22, a fourth optical receiving module 23, Four receiving processing boards 24, a time-frequency circuit 25, a multi-serial port card 26, an industrial computer 27, and a power supply 28 are formed. figure 1 It is the electri...

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Abstract

The invention discloses a clock homology Beidou / GPS aviation augmentation system based on analog light transmission, and relates to signal light transmission between antennas and receiving processing plates of four reference receivers of the aviation augmentation system, centralized installation of the receiving processing plates and high precision clock centralized supply. The clock homology Beidou / GPS aviation augmentation system based on analog light transmission is composed of the antennas, low noise amplifiers, light transmitting modules, optical fibers, light receiving modules, the receiving processing plates, a multi-serial port card, an industrial personal computer, a power source and the like. According to the clock homology Beidou / GPS aviation augmentation system based on analog light transmission, the analog light transmission technology is used, signals of Beidou / GPS active antennas are transmitted to the receiving processing plates through the optical fibers, the transmission distance problem is solved in the centralized installation mode, the antenna distance of the four receivers can exceed 100 meters, the receiving processing plates can be mounted in a centralized mode, and high precision clock centralized supply can be achieved. The system has the advantages of being high in anti-electromagnetic interference capacity, convenient to mount and maintain and the like. Due to the high precision clock centralized supply, the performance and the stability of the system are improved.

Description

technical field [0001] The invention relates to a ground-based aviation enhancement processing system based on analog optical transmission in the application field of Beidou / GPS aviation enhancement, which is used for aircraft precision approach in airports such as civil aviation and general aviation. It is especially suitable for signal transmission and equipment installation between the antennas of the four reference receivers of the ground-based aviation enhanced processing system and the baseband processing circuit under the limited conditions of the airport site. Based on this technical system, the distance between the antennas of four receivers exceeds 100 meters, the centralized installation of baseband processing circuits, and the centralized supply of high-precision clocks are realized. Background technique [0002] The application of Beidou and GPS ground-based augmentation to the precision approach of aviation vehicles has gradually developed into the main technic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/09
CPCG01S19/09
Inventor 邢兆栋赵精博董建明支春阳王振华
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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