Study the influence of intermodulation products on navigation signals

The work examines terrestrial radio broadcasting using frequency modulation (FM), which interferes with the ILS (Instrument Landing System), VOR (VHF Omnial Radio range) and VHF communications systems, which is a widespread problem among aircraft users. In the case of ground/air communication receiv...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2021-01, Vol.1032 (1), p.12013
Main Authors: Iliev, T B, Stoyanov, I S, Mihaylov, G Y, Ivanova, E P
Format: Article
Language:English
Subjects:
Aircraft
Deviation
Frequency modulation
Instrument landing systems
Interference
Intermodulation
Navigation
Radio broadcasting
Radio range
Receivers
Receivers & amplifiers
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Summary:The work examines terrestrial radio broadcasting using frequency modulation (FM), which interferes with the ILS (Instrument Landing System), VOR (VHF Omnial Radio range) and VHF communications systems, which is a widespread problem among aircraft users. In the case of ground/air communication receivers, this interference problem involves disturbing of audio communications and distorted reception of signals from the RV range. In aircraft ILS locators and VOR receivers, the interference problem is associated with interference of audio communications and errors related to course deviation and flag modes of control. Interference in these navigation receivers is considered as a more serious problem than errors in course deviation or impaired communication, especially in the approach and landing phases.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/1032/1/012013