西华大学学报(自然科学版)2024,Vol.43Issue(1):22-27,6.DOI:10.12198/j.issn.1673-159X.5160
基于三维反演重构的微波着陆系统飞行校验评估方法
Flight Inspection and Evaluation Method for Microwave Landing System Based on Three-dimensional Inversion Reconstruction
摘要
Abstract
Flight inspection is a necessary technical means to ensure aviation transportation safety.As an important all-weather precision approach and landing guidance system,Microwave Landing System(MLS)lacks comprehensive standards for flight inspection and test evaluation in the civil aviation domain.Therefore,this study investigates MLS flight inspection based on international standards.Addressing the challenges posed by MLS's wide coverage and flexible approach paths,which may result in spatial signal omissions due to limited flight maneuvers covering the paths,we propose a sparse signal-based scene re-construction method.This approach employs RBFNN to achieve three-dimensional inversion reconstruc-tion of signal scenes under sparse sample conditions,and enables evaluation of the three-dimensional spa-tial signal scenes of MLS.Additionally,we conduct simulation experiments using the path following error as the sample space.The experimental results show that the reconstruction error of the path following error after three-dimensional inversion reconstruction is about 1.4 feet,which is far less than the 20 feet tol-erance required by the FAA8200 flight inspection specification manual.This paper provides a new method for comprehensive evaluation of complete spatial signal scenes in MLS flight inspection.关键词
飞行校验/微波着陆系统/反演重构/径向基函数神经网络Key words
flight inspection/MLS/inversion reconstruction/RBFNN分类
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罗潇,史晓锋..基于三维反演重构的微波着陆系统飞行校验评估方法[J].西华大学学报(自然科学版),2024,43(1):22-27,6.基金项目
国家自然科学基金项目(62227810). (62227810)