Methods for Assessing the Glissade Entrance Quality by the Crew

Methods for Assessing the Glissade Entrance Quality by the Crew

Yurii Hryshchenko (National Aviation University, Ukraine), Viktor Romanenko (National Aviation University, Ukraine) and Daria Pipa (National Aviation University, Ukraine)
DOI: 10.4018/978-1-7998-1415-3.ch016


This chapter proposes methods for assessing the quality of entry into the glide path using autocorrelation functions and regarding the psycho-physiological state of the human operator. This is due to the possible increase in the psycho-physiological tension of a human operator in special flight situations. The analysis of the pilot's ability to control the trajectory of the aircraft is presented. A method for alerting the crew about the failure in the system for obtaining data on the angle of attack and airspeed to prevent non-coordinated turn is given. The majority of the calculations are based on the method of determining the correlation fields during the flight.
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Autocorrelation Functions and Their Use in Assessing Quality of The Approach

The correlation functions between information about the flight trajectory and distortions during the operator tracking operations considered below. This happens due to its psycho-physiological features in a state of high tension.

A comprehensive analysis of the trajectory of the aircraft allows to determine the degree of operator training, his psycho-physiological state, the quality of work of all elements of the aircraft, as well as the reliability of communication in the reception and transmission of commands.

The ideal trajectory control system is the one that provides for the full ergatic compatibility of the operator – aircraft subsystem and continuously processes information about the flight trajectory of the aircraft (AC) without errors and fully performs the specified flight program according to function I (t). In this case, the specified trajectory and information about the real flight trajectory will be the same. Any deviation from a given flight mode is immediately recorded by the onboard equipment, which also notifies the operator. If necessary, the operator can work this difference to zero (Figure 1).

Figure 1.

Ideal system


If there is a following situation: the operator uses information I (t), which becomes a subject of distortion due to a combination of certain reasons. In this case, the information management facility will change and become different –I '(t) (Figure 2)

Figure 2.

Non-ideal system


Key Terms in this Chapter

Flight Path: The line of movement, the flight course of the aircraft.

Correlation Function: Function of time and spatial coordinates, which specifies the correlation in systems with random processes.

Glide Path: The flight path of the aircraft on which it descends just before landing.

Correlation Field: Is a graphical representation of the source data, auxiliary tool for analyzing sample data.

Parameter Amplitude: The highest distance from the equilibrium position.

Human Factor: Psychological and other characteristics of a person, his capabilities and limitations, determined in the specific conditions of his activity.

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