Aircraft fire control system precision sensitivity analysis method based on neural network

Abstract

The invention discloses an aircraft fire control system precision sensitivity analysis method based on a neural network. The method comprises the steps: introducing a local sensitivity algorithm and a global sensitivity algorithm into the index sensitivity analysis of an aircraft fire control system, and comprehensively employing an entropy method and a Sobol method according to the organic combination of different precision indexes, thereby achieving the precision sensitivity analysis of the aircraft fire control system. The analysis precision of the sensitivity coefficient of the precision index of the aircraft fire control system is improved. According to the method, the BP neural network is added in the aircraft fire control system and is trained, the precision index of the aircraft fire control system and the final killing probability are fitted, and required sample data are expanded quickly and effectively. Through a precision optimization distribution algorithm, optimization distribution of precision indexes of the aircraft fire control system is realized. According to the method, the problem of analysis and evaluation of multi-precision indexes in the aircraft fire control system under the condition of insufficient data samples can be well solved, experimental data can be quickly expanded based on learning and analysis of the neural network, and it is guaranteed that the aircraft fire control system reaches the specified killing rate.

Description

technical field [0001] The invention belongs to the technical field of aircraft fire control, and in particular relates to a fire control accuracy sensitivity analysis method. Background technique [0002] In recent years, with my country's attention and emphasis on the correlation analysis of aircraft fire control system error and accuracy, people put forward higher requirements for the correlation analysis of aircraft fire control system error and accuracy, so the "aircraft fire control system error The topic of correlation analysis with accuracy” has become the focus of the fire control industry. In order to maximize the performance of the aircraft fire control system, on the one hand, it is necessary to improve the use of the fire control system, and on the other hand, it is necessary to pay attention to the analysis of the precision sensitivity of the aircraft fire control system. For various aircraft, whether it is an armed helicopter or a fighter or other types of air...

AI Technical Summary

Problems solved by technology

[0004] In the field of military industry, it is often difficult to evaluate the relative accuracy of an existing aircraft system due to cost issues and operational difficulties. For complex systems, it is often difficult to conduct accuracy analysis on the numerous factors that affect the hit probability of strikes. This limits the development, development and testing of weapons and equipment to a certain extent

At the same time, the fire control system is complex and data acquisition is difficult. How to use existing data for effective precision analysis has become a key issue in improving the performance of the aircraft fire control system.

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