VNAV路径下降算法及其精度性能研究  

Study on VNAV Path Descent Algorithm and its Accuracy Performance

作　　者：蔡中天 陈祺 王海涛 齐林[1] 王丹[1] CAI Zhong-tian;CHEN Qi;WANG Hai-tao;QI Lin;WANG Dan(China National Aeronautical Radio Electronics Research Institute,Shanghai 200000,China)

机构地区：[1]中国航空无线电电子研究所,上海200000

出　　处：《航空计算技术》2025年第1期82-87,共6页Aeronautical Computing Technique

基　　金：国家自然科学民航联合基金项目资助(U2133210)。

摘　　要：为了提升现代飞行管理系统(FMS)中垂直导航(VNAV)功能的适航符合性,特别是满足所需导航性能(RNP)标准,提出一系列能够实现VNAV路径下降的算法,并研究了垂直误差分析验证的方法。首先,详细阐述了一种下降路径规划算法,在复杂高度约束条件下生成优先连续下降的参考轨迹;其次,设计了路径跟踪控制律以确保飞机能够准确遵循预设的VNAV路径。为进一步验证算法的有效性和精度,通过实验分析各垂直误差项,并对照RNP设备的最低运行性能标准(MOPS)进行了符合性评估。研究结果显示,基于符合RNP标准的一系列垂直误差分析,所提出的VNAV路径下降相关算法能够满足RNP垂直精度性能要求。In order to enhance the airworthiness compliance of the Vertical Navigation(VNAV)function in modern Flight Management Systems(FMS),particularly in the compliance to the Required Navigation Performance(RNP)standards,this paper presents algorithms implementing VNAV Path,as well as investigates methods for vertical error analysis.First,we detail an innovative descent path planning algorithm capable of generating reference path that prioritizes continuous descent under complex altitude constraints.Following this,control laws for path tracking are devised to ensure a precise track of the predefined path.To further validate the algorithms,experimental analyses of various vertical error components are conducted in this paper,with a conformity assessment against the Minimum Operational Performance Standards(MOPS)for RNP equipment.The research reveals that,based on a series of vertical error analyses compliant with RNP standards,the proposed VNAV path descent algorithms meet the vertical accuracy performance requirements mandated by RNP.

关 键 词：飞行管理系统 垂直导航 所需导航性能 路径下降 算法设计 仿真实验 

分 类 号：TP311.5[自动化与计算机技术—计算机软件与理论]