Ground proximity warming method based on flight performance of aircraft

Abstract

The invention discloses a ground proximity warming method based on the flight performance of an aircraft. The ground proximity warming method comprises the following steps: 1, generating and storing aground proximity warming threshold table for describing the corresponding relationship between the maximum climbing angle as well as the maximum climbing angle rate of the aircraft and a ground proximity warming threshold; 2, reading the current maximum normal overload coefficient of the aircraft, and calculating the current maximum climbing angle and maximum climbing angle rate of the aircraft;3, acquiring a corresponding ground proximity warming threshold according to the current maximum climbing angle and maximum climbing angle rate of the aircraft; and 4, performing warning calculation by using the ground proximity warming threshold obtained in the step 3, and giving a warning result. Through adoption of the ground proximity warming method, the warning threshold value is coupled withthe real-time flight performance of the aircraft, so that the warning success rate can be ensured; the false warning rate is lowered; and the comprehensive warning performance of the system is improved.

Description

technical field [0001] The invention belongs to the field of aircraft ground proximity warning systems, and relates to a ground proximity warning method based on aircraft flight performance. Background technique [0002] The Ground Proximity Warning System (GPWS) is an avionics device widely used in military and civil aircraft in recent years. Its main function is to judge whether the aircraft is in danger of collision with the ground, so as to reduce the accident of controlled flight into the ground. When the aircraft is in danger of colliding with the ground, the ground proximity warning system provides warning instructions to the crew to prevent the accident of crashing into the mountain and effectively improving flight safety. [0003] In the traditional alarm threshold design of the Earth Proximity Warning System, statistical methods are generally used to convert the random factors in the design process into fixed parameters through the calculation of the probability di...

AI Technical Summary

Problems solved by technology

As a result, the alarm threshold of the ground proximity warning system is also changing. If the initial alarm threshold is always used, the system will generate false alarms and reduce the comprehensive alarm performance of the system.

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