Test platform design method for terrain awareness warning system (TAWS)

Abstract

The invention relates to a test platform design method for a terrain awareness warning system (TAWS). An aircraft model and environment module, a real scene display module and a virtual control platform are included. The method comprises steps: 1, a six-degree-of-freedom aircraft simulation model under a Matlab environment is built, wherein the model is mainly composed of five parts: force, moment, a six-degree-of-freedom model, an engine model and an atmospheric parameter model; 2, trimming of the aircraft is carried out; 3, digital elevation data are called from a terrain database, an array form with a group of ordered numerical values is used to express ground elevation, and a simulated terrain is outputted to a visual display platform; 4, according to the real scene display, a pilot controls a related mechanism to adjust the attitude of the aircraft to control the flight; and 5, the above simulation platform and the tested TAWS system are crosslinked. TAWS performance test for different aircraft types can be carried out, a TAWS system setting threshold and avoiding measures can be provided or optimized according to a test result, and the safety performance of the aircraft can be improved effectively.

Description

technical field [0001] The invention relates to the field of method inventions, in particular to a method for designing a test platform for a Terrain Awareness and Warning System (TAWS). The invention can perform TAWS system performance test for different aircraft types, and can propose or optimize TAWS system setting threshold and avoidance measures according to the test results, so as to effectively improve the safety performance of the aircraft. Background technique [0002] Terrain Awareness and Warning System (TAWS) is an important guarantee for aviation safety, which can effectively avoid controlled flight into terrain accidents. The alarm mode and alarm threshold setting of TAWS products directly determine the ground proximity warning performance of the aircraft. At present, the performance test of TAWS products is mainly carried out through the actual installation test, and there are also related designs that can complete the performance test of TAWS products throug...

AI Technical Summary

Problems solved by technology

[0003] After reviewing the relevant literature, it can be found that although both test methods can complete the performance test of TAWS products, the test process through the installation and actual measurement method needs to bear the risk of high risk and high cost. If false alarms and false alarms occur, it may threaten the crew and aircraft safety

However, although the existing relevant testing technologies or products can complete the performance testing of TAWS products, due to the lack of comprehensive consideration of environmental factors, the real scene display of the testing process is not specific and perfect, and the flight simulation of the aircraft is not realistic enough, resulting in the test results not meeting expectations. Reliability, Effectiveness

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