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Drawing-size correction method and system for aerial targets

An aerial target and model correction technology, applied in the field of flight simulation, can solve the problems of difficult design and installation, high cost, infeasible practical application, etc., and achieve the effect of improving accuracy, strong practicability, and reducing cost

Inactive Publication Date: 2012-07-25
MILITARY EQUIP RES INST AIR FORCE PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the above-mentioned existing technologies are costly and difficult to design and install. For a multi-aircraft air combat system, multiple projectors are required, and practical application is not feasible.

Method used

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  • Drawing-size correction method and system for aerial targets
  • Drawing-size correction method and system for aerial targets
  • Drawing-size correction method and system for aerial targets

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Embodiment 1

[0025] see figure 1 , an embodiment of the present invention provides a method for correcting the drawing size of an air target, including:

[0026] 101: Establish a correction model of the drawing size of the air target according to the human eye resolution in advance, and determine the total number of pixels of the screen according to the desired display resolution, horizontal field of view and vertical field of view;

[0027] 102: Obtain the distance between the air target and the local area, and determine the magnification factor corresponding to the distance according to the correction model;

[0028] 103: Correct the drawing size of the air target according to the magnification, and display the corrected air target on a screen of a liquid crystal display (LCD) whose pixels are the total number of pixels.

[0029] In the embodiment of the present invention, there may be one or more LCDs. Preferably, the number of LCDs is multiple, and the number N can be set according to...

Embodiment 2

[0033] see figure 2 , another embodiment of the present invention provides a method for correcting the drawing size of an air target, including:

[0034] 201: Pre-select a first air target with a specified wingspan, and obtain the display size of the first air target on the screen at different times and the distance from the local area.

[0035] 202: Record the distance perceived by the pilot to the first air target at different moments.

[0036] 203: According to the obtained display size of the first air target at different times, the distance from the local area, and the distance perceived by the pilot, perform segmented curve fitting to obtain a revised model of the drawing size of the air target.

[0037] Wherein, the screen refers to the LCD screen in the present invention, preferably, it is a spherical screen composed of N LCD splicing, and the distance perceived by the pilot refers to the distance between the air target and the local area estimated by the pilot based...

Embodiment 3

[0064] see Figure 5 , another embodiment of the present invention provides a system for air target drawing size correction, including:

[0065] The control node 501 is used to establish a correction model of the drawing size of the aerial target according to the resolution of the human eye in advance, and determine the total number of pixels of the screen according to the desired display resolution, horizontal field of view and vertical field of view, and obtain the distance between the aerial target and the local area , determining the magnification factor corresponding to the distance according to the correction model, and sending the magnification factor;

[0066] The slave node 502 is used for correcting the drawing size of the air target according to the magnification sent by the control node, and displaying the corrected air target on the screen of the liquid crystal display LCD whose pixels are the total number of pixels.

[0067] The control node and the slave node i...

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Abstract

The invention discloses a drawing-size correction method and a drawing-size correction system for aerial targets, belonging to the technical field of flight simulation. The method comprises the following steps: establishing a drawing-size correction model for aerial targets according to a visual resolution in advance, and determining the total number of pixel points of a screen according to an expected display resolution, horizontal field and vertical field; acquiring the distance between an aerial target and the local place, and determining a magnification factor corresponding to the distance according to the correction model; and correcting the drawing size of the aerial target according to the magnification factor, and displaying the corrected aerial target on the screen of which the number of pixel points is equal to the total number of pixel points of an LCD (liquid crystal display). The system is a cluster-computing high-definition visual system, and comprises control nodes and slave nodes. According to the invention, the accuracy of aerial-target distance perception of pilots in simulation training is improved, and the cost is greatly reduced, therefore, the method and system disclosed by the invention have strong practical applicability.

Description

technical field [0001] The invention relates to the technical field of flight simulation, in particular to a method and system for correcting the drawing size of an air target. Background technique [0002] In the multi-aircraft air combat simulation training system, the blurring and rapid disappearance of the target aircraft has always been a problem that affects the quality of simulation training. The size of the target aircraft seen by the pilot on the simulation screen and the judgment of the distance are related to the pilot's space perception psychology, air perspective, realistic imaging of the target aircraft, display resolution, brightness, contrast and other factors. Projection in space is not a simple linear perspective transformation relationship. [0003] Since the visual simulation software in the multi-aircraft combat simulation training system uses a simple lighting model, and the display processing is a digital signal processing mechanism, when the target a...

Claims

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Application Information

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IPC IPC(8): G09B9/30G09B9/08
Inventor 雷励星范贤德
Owner MILITARY EQUIP RES INST AIR FORCE PLA
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