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Aircraft Positioning Method Based on Two Forwarding System

A positioning method and aircraft technology, applied in the field of satellite navigation, can solve the problems of loss of radio concealment and inapplicability to high dynamic moving objects, etc.

Active Publication Date: 2015-12-02
ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method loses radio concealment, and the number of users is limited by the channel capacity. Although the positioning solution is completed at the ground center station, the positioning receiver still needs to demodulate and modulate the signal, and it is not suitable for highly dynamic moving objects.

Method used

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  • Aircraft Positioning Method Based on Two Forwarding System
  • Aircraft Positioning Method Based on Two Forwarding System
  • Aircraft Positioning Method Based on Two Forwarding System

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that, in the drawings or descriptions of the specification, similar or identical parts all use the same figure numbers. Implementations not shown or described in the accompanying drawings are forms known to those of ordinary skill in the art. Additionally, while illustrations of parameters including particular values ​​may be provided herein, it should be understood that the parameters need not be exactly equal to the corresponding values, but rather may approximate the corresponding values ​​within acceptable error margins or design constraints.

[0022] The present invention proposes a new aircraft navigation and positioning method based on the twice-forwarding system. This method draws on the working p...

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Abstract

The invention provides a novel aircraft positioning method based on a two-forwarding system. According to the method, an operating principle of forwarding type satellite navigation is imitated, a repeater is carried on an aircraft, secondary forwarding is carried out by a satellite, downlink broadcasting navigation signals are forwarded, and calculating operation of aircraft positioning and velocity measurement is handled over by the ground to achieve aircraft navigation positioning based on the two-forwarding.

Description

technical field [0001] The invention relates to the technical field of satellite navigation, in particular to an aircraft positioning method based on a double forwarding system. Background technique [0002] Aircraft such as unmanned aerial vehicles and airships have important application value in disaster reduction, disaster relief, detection and other fields. At present, there are mainly four methods to solve the problem of aircraft positioning: [0003] (1) Equipped with a GPS receiver. The aircraft is equipped with a receiver to receive GPS signals, and directly calculates the position and speed of the aircraft. The transceiver equipment of this method is complicated, and the equipment cost is expensive under the high dynamic environment at the same time. [0004] (2) Inverted GPS technology. Multiple navigation stations deployed on the ground are used to launch beacons to provide reference information for the aircraft, and the equipped equipment uses the principles ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/43
Inventor 巩应奎万红霞刘婷袁洪刘伟
Owner ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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