Abstract
This paper reports an experimental study aimed at confirming disruptions in the operation of ADS-B receivers. The experimental investigation into disruptions in the operation of ADS-B receivers involved the FlightAware Piaware receiver. Examples of the disrupted performance of ADS-B receivers are given. It was found that the experimentally detected disruptions in the operation of ADS-B receivers could lead to a decrease in the accuracy of determining the coordinates of air objects with the joint use of the radar and multilateration technology. A method for determining the coordinates of an air object by radar with additional use of multilateration technology has been devised. The method involves the following stages: entering initial data, the calculation of distances between the points of reception and the air object, the computation of the inconsistency vector, the calculation of the matrix of partial derivatives taking into consideration the estimates of the coordinates of an air object at the previous iteration, the computation of the correction, the calculation of the refined coordinates of the air object. Unlike those known ones, the improved method for determining the coordinates of an air object by a radar additionally uses multilateration technology. The accuracy of determining the air objects' coordinates by a radar with the additional use of multilateration technology was estimated. It was established that the additional application of multilateration technology would reduce the error in determining the coordinates of an air object by 1.58 to 2.39 times on average, compared to using only an autonomous radar
Highlights
Given the current conditions of hybrid warfare, civil aviation aircraft perform flights as usual
It is advisable to build a method for determining the coordinates of air objects by RSs with the additional use of multilateration technology
The purpose of this study is to devise a method for determining the coordinates of air objects by RSs with the additional use of multilateration technology
Summary
Given the current conditions of hybrid warfare, civil aviation aircraft perform flights as usual. Air surveillance and control of air objects typically involve radar (RS) with mechanical rotation. Examples of such RSs are P-18 (Ukraine) and their modifications (P-18MA, P-18MU, P-18 Malachite), P-19 (Ukraine), 19Zh6 (Ukraine), 35D6 (Ukraine),. The accuracy of determining the air objects’ coordinates by the specified RSs does not meet the requirements and safety standards. Known methods for increasing the accuracy of determining the air objects’ coordinates are mainly associated with an increase in the energy potential of RSs, the use of RSs of different ranges, an increase in the number of RSs in general. Under the modern conditions of hybrid warfare, improving the accuracy of determining the coordinates of air objects is a relevant task. This work proposes a method for determining the air objects’ coordinates by RSs with the additional use of multilateration technology
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