# HAPD aircraft Uncertain Norm-Bounded Mathematical model

## TL;DR

This paper develops an uncertain norm-bounded mathematical model for the HAPD UAV, capturing its nonlinear dynamics within specified airspeed and altitude bounds to aid in performance analysis.

## Contribution

It introduces a linear state space model that accurately describes the UAV's nonlinear behavior within defined operational limits, enhancing modeling precision.

## Key findings

- Model effectively captures UAV dynamics within bounds
- Provides a basis for control and performance analysis
- Enhances understanding of UAV behavior in specified envelope

## Abstract

In this paper an uncertain norm-bounded mathematical model for the UAV High Altitude Performance Demonstrator (HAPD) designed by Italian Aerospace Research Center (CIRA) is carried out. The linear state space description aims to describe the non-linear aircraft dynamic inside the operating envelope characterized by the following bounds: true air speed between 17 m/s and 23 m/s and altitude from 300 m to 700 m.