Analysis of control quality of aircraft lateral motion during approach with the use of different control laws

The article presents different methods of control of the lateral motion of aircraft during approach with the use of ILS‐LOC. Results of computer simulations are presented. An assessment of the quality with and without cross‐wind was made with the use of quality coefficients. The control laws are based on PID regulator and its modifications. Moreover, the application of the model‐following control in case of incomplete measurement, i.e. lack of information about the track angle, is presented. For interception, the model is used as the generator of the desired trajectory. The difference between the real and model trajectory is used for wind compensation, instead of the integration in LOC regulator. For control law synthesis for stabilization, linear quadratic regulator method was used. First Published Online: 14 Oct 201

The Integration of a Prototype Pitch Control Application with IMA2G Devices

This paper reports the integration of a pitch control application into an experimental integrated modular avionics hardware-software module. The reported research was conducted within SCARLETT European program. A set of practical integration rules crucial from the development process perspective have been enumerated

The PAPI Lights-Based Vision System for Aircraft Automatic Control during Approach and Landing

The paper presents the concept of a component of an aircraft’s automatic flight control system, controlling the airplane when in longitudinal motion (i.e., pitch angle, sink rate, airspeed channels) during automatic landing, from a final approach until a touchdown. It is composed of two key parts: a vision system and an automatic landing system. The first part exploits dedicated image-processing algorithms to identify the number of red and white PAPI lights appearing on an onboard video camera. Its output data—information about an aircraft’s position on a vertical profile of a landing trajectory—is used as one of the crucial inputs to the automatic landing system (the second part), which uses them to control the landing. The control algorithms implemented by the automatic landing system are based on the fuzzy logic expert system and were developed to imitate the pilot’s control actions during landing an aircraft. These two parts were teamed together as a component of a laboratory rig, first as pure software algorithms only, then as real hardware modules with downloaded algorithms. In two test campaigns (software in the loop and hardware in the loop) they controlled an aircraft model in a simulation environment. Selected results, presenting both control efficiency and flight precision, are given in the final section of the paper

The PAPI Lights-Based Vision System for Aircraft Automatic Control during Approach and Landing

The paper presents the concept of a component of an aircraft’s automatic flight control system, controlling the airplane when in longitudinal motion (i.e., pitch angle, sink rate, airspeed channels) during automatic landing, from a final approach until a touchdown. It is composed of two key parts: a vision system and an automatic landing system. The first part exploits dedicated image-processing algorithms to identify the number of red and white PAPI lights appearing on an onboard video camera. Its output data—information about an aircraft’s position on a vertical profile of a landing trajectory—is used as one of the crucial inputs to the automatic landing system (the second part), which uses them to control the landing. The control algorithms implemented by the automatic landing system are based on the fuzzy logic expert system and were developed to imitate the pilot’s control actions during landing an aircraft. These two parts were teamed together as a component of a laboratory rig, first as pure software algorithms only, then as real hardware modules with downloaded algorithms. In two test campaigns (software in the loop and hardware in the loop) they controlled an aircraft model in a simulation environment. Selected results, presenting both control efficiency and flight precision, are given in the final section of the paper

Proposal for navigation and control system for small UAV

The article presents the project of UAV control system realized at Department of Avionics and Control Systems of Rzeszów University of Technology. The project is based on earlier experiences. In the article general structure of the onboard control system is shown as well as the structure of control station. There are described in proposed control and navigation procedures as well as human factor, failure detection and system reconfiguration. Pasiūlymas mažų bepiločių orlaivių navigacijos ir kontrolės sistemoms Santrauka. Šiame straipsnyje aprašomas bepiločių orlaivių kontrolės sistemos projekto įgyvendinimas Ržešovo technologijos universiteto Aviadjos prietaisų ir kontrolės sistemų katedroje. Projektas atliktas remiantis ankstesne patirtimi. Pateikta ne tik borto sistemų bendroji struktūra, bet ir kontrolės stočių struktūra. Darbe nagrinėjamas žmogaus veiksnys, gedimų aptikimas ir sistemų rekonfigūravimas pasiūlytose kontrolės ir navigacijos procedūrose. Reikšminiai žodžiai: orlaivio kontrolės sistemos, bepiločiai orlaiviai. First published online: 10 Feb 201