| Autor: |
Tripathy, Shashi Kanta, Mangaraj, Soumyashree |
| Předmět: |
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| Zdroj: |
Grenze International Journal of Engineering & Technology (GIJET); 2023, Vol. 9 Issue 1, p318-323, 6p |
| Abstrakt: |
Civil aviation is developing by and large across the globe due to vast population and increased demand of flight services. Unplanned expansions or alterations of existing buildings/infrastructure at the close vicinity of runway result into undesired electromagnetic interference on the Instrument Landing System (ILS) which is designed for safe and planned landings at center of runway of that airport. ILS subsystem Localizer (LOC) which provides the guidance in the horizontal position of an aircraft, emits two types of signals, a carrier signal and sideband lobes modulated by a 90 Hz and a 150 Hz tone. The accuracy of the LOC is given by the difference in the depth of the modulation (DDM). But, their signals are influenced by obstacles, such as large hanger, terminal buildings and aircraft and result in the DDM errors. The ILS electromagnetic interference analysis at airport is mainly based on the results of test flight testing and air calibration which are highly time consuming and costly too. In this paper, CST studio suite is used to design and simulate localizer antenna by introducing five obstacles of different geometrical shapes. Then, how much interference/deviation observed on main lobe of Localizer beam due to presence of each obstacle along the extended runway is recorded. This result is very useful for planning of additional infrastructure development especially along the extended runway direction in order to minimize electromagnetic interference on LOC (ILS) path. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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