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Radio altimeter data processing method and device based on extrinsic information

A radio altimeter and data processing technology, applied in the aircraft field, can solve the problems of inability to correct in time, poor radio altimeter data validity, low processing efficiency, etc., achieving good versatility, easy debugging and maintenance, and reducing implementation costs. Effect

Active Publication Date: 2022-06-07
10TH RES INST OF CETC
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Problems solved by technology

[0006] The main purpose of the present invention is to provide a radio altimeter data processing method, device, equipment and storage medium based on external information, aiming to solve the problem that the current radio altimeter data is not valid, cannot be corrected in time, and the processing efficiency is not high technical problem

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  • Radio altimeter data processing method and device based on extrinsic information
  • Radio altimeter data processing method and device based on extrinsic information
  • Radio altimeter data processing method and device based on extrinsic information

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specific example

[0081] For ease of understanding, this embodiment provides a specific example of a method for processing radio altimeter data based on external information, which is as follows:

[0082] refer to image 3 , image 3 A schematic diagram of data prediction is given when the altimeter data is missing or the data is judged to be invalid. Let the previous time t when the altimeter information is lost 0 The height is H ALT0 , then at the moment t of information loss 1 , theoretically the information output by the altimeter is at H ALT0 On the basis of superimposing the altitude change ΔH caused by the movement of the aircraft in the altitude direction 1 and the change in height ΔH due to changes in terrain 2 . where, t 0 to t 1 The altitude change caused by the altitude movement of the aircraft is calculated by the altitude output by the air data machine, t 0 to t 1 The altitude change caused by the terrain change is calculated by the altitude provided by the electronic m...

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Abstract

The invention discloses a radio altimeter data processing method and device based on extrinsic information, equipment and a storage medium. The method comprises the following steps: acquiring a first height value of a radio altimeter at a current moment and a second height value of the radio altimeter at a previous moment; judging whether the height difference value of the radio altimeter at the current moment and the previous moment meets a height effective condition or not; wherein the effective condition is that the height difference value is within a preset range of the extrinsic information difference value; if the height difference meets the effective condition, outputting the first height value as the height value at the current moment; otherwise, based on the second height value and the extrinsic information difference value, determining and outputting the real height value at the current moment. According to the invention, by acquiring the height difference value and the extrinsic information difference value between the current moment and the previous moment, the validity of the altimeter data is judged in real time, and the wrong height data is corrected, so that the height data requirements when a pilot executes different flight tasks are met.

Description

technical field [0001] The present invention relates to the technical field of aircraft, and in particular, to a method, device, device and storage medium for processing radio altimeter data based on external information. Background technique [0002] The radio altimeter is an airborne system used to measure the true height of the aircraft relative to the ground. As a frequency ranging system, it is an autonomous navigation device, which achieves frequency measurement by establishing the relationship between the frequency change and the true height of the aircraft. distance purpose. The true altitude measured by the radio altimeter is a key navigation parameter that supports operations such as aerial survey, airdrop and obstacle clearance. Because the radio altimeter has the characteristics of high measurement accuracy and good real-time performance, its application fields are constantly expanding, such as the transportation and delivery of materials by transport aircraft, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/88G01C5/00
CPCG01S13/882G01C5/005Y02D30/70
Inventor 方涛钱东杨芸罗治斌任晗黄泽贵
Owner 10TH RES INST OF CETC
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