Abstract
Required Navigation Performance (RNP) is known as a performance parameter for a navigation system, where its function is to keep an aircraft within a certain radius of containment. During the flight, an aircraft transmits its real-time location-based on Global Navigation Satellite Systems (GNSS) technology via Automatic Dependence Surveillance Broadcast (ADS-B) protocol. However, there are questions about the flight position accuracy. This research aims to analyze the accuracy of ADS-B flight data about RNP requirements. The flight data used is gathered from the FlightRadar24 website and filtered for each flight phase. The selected route used is Makassar (UPG) – Jakarta (CGK) because the route has the highest number of flights per week. The Dot Product method is proposed to calculate the distance between the flight trajectory to the line of flight procedure towards the destination airport. The analysis is conducted based on the compliance of the flight data to the RNP threshold. It is concluded that the majority of evaluated flights in the selected route fly within the RNP boundary. However, some non-complying flights become within the RNP boundary when they are evaluated with other possible published procedures
Highlights
IntroductionTransportation has an important role in our society. As the population increases, the number of commuters will increase
Most modern commercial aircraft are equipped with high-tech radar and positioning systems to maintain a high level of safety
Since the calculation requires only the latitude and longitude data of each aircraft, aircraft type, altitude, and speed will be neglected in the calculation
Summary
Transportation has an important role in our society. As the population increases, the number of commuters will increase. The space available for transportation decreases along with the increasing number of transportations. This applies to any form of transportation, notably air transportation. The surging numbers of aircraft will gradually affect the traffic in airspace; navigation systems are required to be very accurate and reliable during flight. ATC (Air Traffic Controller), Navaids such as VOR (VHF Omnidirectional Frequency Range), and ground stations, all together provide bridges to communicate with aircraft, while transmitting and receiving data at the same time. The chapter will be broken down into several background theories– How GPS (Global Navigation System) as most of the popular GNSS and ADS-B (Automatic Dependent Surveillance-Broadcast) work, and the RNP concept. 4 satellites are needed to determine your location accurately while 1 of the 4 satellites will determine the time errors
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