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Ground-air communication method and ground-air communication system adaptive to work frequency of distance measuring equipment (DME) system

A working frequency, ground-air technology, applied in the field of ground-air communication methods and related systems

Active Publication Date: 2013-07-03
航广卫星网络有限责任公司
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Problems solved by technology

[0009] The purpose of the present invention is to provide a ground-air communication method and system adapted to the working frequency of the DME system, which solves the problem that the ground-air communication system reuses the working frequency of the DME system for ground-air communication

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  • Ground-air communication method and ground-air communication system adaptive to work frequency of distance measuring equipment (DME) system
  • Ground-air communication method and ground-air communication system adaptive to work frequency of distance measuring equipment (DME) system
  • Ground-air communication method and ground-air communication system adaptive to work frequency of distance measuring equipment (DME) system

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Embodiment Construction

[0071] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described below are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0072] figure 2 It shows the principle diagram of the ground-air communication method adapted to the working frequency of the DME system provided by the embodiment of the present invention, as shown in figure 2 As shown, the steps include:

[0073] Step S201. In the ground-to-air communication system, the airborne terminal pre-stores information on the location and operating frequency of each base station within the flight route. The pre-stored positions and operating frequencies of the base stations are determined according to the DME system operating frequency planning table in the area and the interference threshold index of the DME receiver during ...

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Abstract

The invention discloses a ground-air communication method and a ground-air communication system adaptive to the work frequency of a distance measuring equipment (DME) system, and relates to the field of ground-air communication. The ground-air communication method includes the following steps that in a ground-air communication system, an onboard terminal pre-stores the information of the position and the work frequency of each base station in an air route. The onboard terminal determines the current base station according to the current position of the onboard terminal and the pre-stored information of the position of each base station, and determines the work frequency of the onboard terminal according to the pre-stored information of the work frequency of each base station; ground-air communication is carried out with the current base station by utilizing the work frequency of the onboard terminal. The ground-air communication method and the ground-air communication system adaptive to the work frequency of the DME system achieve the ground-air communication between the onboard terminal adaptive to the work frequency of the DME system and the current base station, and have no interference on the DME system in the process of the ground-air communication between the onboard terminal and the current base station.

Description

technical field [0001] The invention relates to the field of ground-air communication, in particular to a ground-air communication method and a related system adapted to the working frequency of a DME system. Background technique [0002] DME stands for distance measuring equipment, which is a short-range aviation radio navigation system widely used in civil aviation. The working frequency range of the DME system is 962-1213MHz. The entire frequency band is divided into 252 frequency points in the form of frequency division and code division. The interval between each frequency point is 1MHz. The interval between the inquiry frequency and the response frequency is fixed at 63MHz. The working mode of the DME system is divided into two types, which are X mode and Y mode, such as figure 1 As shown, the early system only had 126 X-mode working channels, and later expanded the Y-mode on the basis of the X-mode. At present, there is no plan to use the Y mode in China, only the X...

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Application Information

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IPC IPC(8): H04W4/02H04W52/24H04W76/02
Inventor 马馨睿段世平肖业平王宇
Owner 航广卫星网络有限责任公司
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