A 3D Terrain Rendering Method for Airborne Synthetic Vision

Abstract

The invention provides a three-dimensional terrain rendering method used for airborne synthetic vision, and aims at enhancing the rendering efficiency of the synthetic vision operating on the resource-constrained embedded platform, enhancing the real-time performance of the synthetic vision system and also meeting the requirements of airworthiness regulations and advisory notices for the synthetic vision system on the aspect of accuracy and security. Usually the airborne embedded platform has limited computing resource and has weaker graphic processing capacity than that of the common consumer electronics so as to be difficult to operate the synthetic vision system of high real-time requirement on the resource-constrained embedded platform. With application of the method, the computing requirement in the synthetic vision rendering process can be reduced, the terrain rendering efficiency can be enhanced, the computing process can be optimized and the terrain rendering accuracy can also be guaranteed. The test platform verifies that the three-dimensional rendering efficiency can be effectively enhanced by the method.

Description

Technical field [0001] The invention belongs to the airborne synthetic visual scene technology, and relates to a three-dimensional terrain rendering method for the airborne synthetic visual scene. Background technique [0002] The limited vision of aircraft pilots is one of the main factors of serious flight accidents worldwide. In order to solve this problem, research institutions in various countries have invested a lot of manpower and material resources to develop new aircraft cockpit display technology. The synthetic visual system came into being under this background. Synthetic vision is a system that uses terrain data, obstacle data, and airport runway data to generate three-dimensional virtual vision, and integrates the virtual vision with flight instrument information, guidance information, and warning information. One of the key components of the new combined display system (SVS, EVS, HUD) required by civil aircraft to improve the low-visibility takeoff and landing cap...

AI Technical Summary

Problems solved by technology

There are no related airborne products in China. On the one hand, it is because the resources of the airborne computing platform are limited. On the other hand, because of the large-scale terrain processing, the amount of calculation is huge, and the usual calculation methods are difficult to guarantee real-time performance.

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