Communication and positioning integrated dual-mode airborne system based on Beidou satellite

A Beidou satellite, communication and positioning technology, applied in the field of communication, can solve the problems of instantaneous signal attenuation, positioning and communication success rate reduction, interruption, etc., and achieve the effect of receiving complete information

Active Publication Date: 2021-07-30
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, during the flight, the antenna surface will be blocked by the helicopter rotor, coupled with the impact of flight dynamics, it will inevitably cause instantaneous attenuation or even interruption of the signal, resulting in a serious reduction in the success rate of positioning and communication, and even communication interruption.
Conventional receivers can only achieve a 50% to 60% reach rate level for Beidou communication under the condition of rotor occlusion, which seriously restricts the use of Beidou communication functions

Method used

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  • Communication and positioning integrated dual-mode airborne system based on Beidou satellite
  • Communication and positioning integrated dual-mode airborne system based on Beidou satellite
  • Communication and positioning integrated dual-mode airborne system based on Beidou satellite

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Embodiment Construction

[0035] Below, the present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0036] In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art Generally speaking, other drawings can also be obtained based on these drawings on the premise of not paying creative work.

[0037] refer to figure 1 In this embodiment, the Beidou dual-mode airborne system includes three parts: an antenna 1 , a host 2 and a handheld terminal 3 .

[0038] The antenna receives Beidou satellite signals and sends them to the host to complete baseband signal processing, positioning calculation and message information processing. The crew completes the editing, storage, s...

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Abstract

The invention discloses a communication and positioning integrated dual-mode airborne system based on a Beidou satellite and belongs to the technical field of communication. The system comprises an antenna, a host and a hand-held terminal, wherein the antenna receives Beidou satellite signals and sends the Beidou satellite signals to the host to complete baseband signal processing, positioning resolving and message information processing, and crew personnel complete editing, storing, sending and receiving of Beidou short messages through the handheld terminal. According to the method, the optimal dynamic threshold and equipment receiving sensitivity are ensured so that the communication success rate reaches more than 98%.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a communication and positioning integrated dual-mode airborne system based on Beidou satellites. Background technique [0002] At present, helicopters are playing an increasingly important role in non-combat military operations such as counter-terrorism, emergency rescue, and disaster relief. With the gradual expansion of Beidou application fields, the demand for Beidou equipment to be installed on helicopter platforms also increases. The helicopter rotor consists of a hub and blades, and the rotor periodically crosses the antenna face to block the incoming beam of the satellite. The rotors of some helicopters are all metal, and in the actual flight process, the elevation angle and position of the satellite as well as the flight direction and attitude of the helicopter will affect the on-off time ratio of the satellite communication signal, which will inevitably cause the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/32G01S19/37H04B7/185H04B1/401
CPCG01S19/32G01S19/37H04B7/18515H04B1/401
Inventor 武之凤徐如李娟娟李龙李新亮
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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