UWB EMI to aircraft radios: field evaluation on operational commercial transport airplanes

Ely, Jay J.; Martin, W. L.; Fuller, G.L.; Shaver, T.W.; Zimmerman, J.; Larsen, William E.

doi:10.1109/dasc.2004.1390792

Cited by 9 publications

(3 citation statements)

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“…While the aviation industry now possesses more knowledge and experience on the subject, there is little information on the actual influence of various current PEDs on navigation and communication systems in an aircraft. Studies were mostly devoted to investigating either the emissions of electronic devices (Fuller and Satterlee, 1999) or the interference path coupling (Nunes and Schüür, 2012) separately, or by combining both analytically (Ely et al, 2004;Schüür and Nunes, 2012;RTCA, 2008). In addition, PEDs have significantly changed in the last years.…”

Section: Introductionmentioning

confidence: 99%

Emission analysis of large number of various passenger electronic devices in aircraft

Schuur¹,

Oppermann

Enders

et al. 2016

Adv. Radio Sci.

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Abstract. The ever increasing use of PEDs (passenger or portable electronic devices) has put pressure on the aircraft industry as well as operators and administrations to reevaluate established restrictions in PED-use on airplanes in the last years. Any electronic device could cause electromagnetic interference to the electronics of the airplane, especially interference at receiving antennas of sensitive wireless navigation and communication (NAV/COM) systems. This paper presents a measurement campaign in an Airbus A320. 69 test passengers were asked to actively use a combination of about 150 electronic devices including many attached cables, preferentially with a high data load on their buses, to provoke maximal emissions. These emissions were analysed within the cabin as well as at the inputs of aircraft receiving antennas outside of the fuselage. The emissions of the electronic devices as well as the background noise are time-variant, so just comparing only one reference and one transmission measurement is not sufficient. Repeated measurements of both cases lead to a more reliable first analysis. Additional measurements of the absolute received power at the antennas of the airplane allow a good estimation of the real interference potential to aircraft NAV/COM systems. Although there were many measured emissions within the cabin, there were no disturbance signals detectable at the aircraft antennas.

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Section: Introductionmentioning

confidence: 99%

Emission analysis of large number of various passenger electronic devices in aircraft

Schuur¹,

Oppermann

Enders

et al. 2016

Adv. Radio Sci.

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“…Extensive details regarding this work are reported in a NASA Technical Publication. 30 Here is a brief summary of the test results:…”

Section: Direct Effect Uwb Testing On Airplanesmentioning

confidence: 99%

Electromagnetic Interference to Flight Navigation and Communication Systems: New Strategies in the Age of Wireless

Ely

2005

AIAA Guidance, Navigation, and Control Conference and Exhibit

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Electromagnetic interference (EMI) promises to be an ever-evolving concern for flight electronic systems. This paper introduces EMI and identifies its impact upon civil aviation radio systems. New wireless services, like mobile phones, text messaging, email, web browsing, radio frequency identification (RFID), and mobile audio/video services are now being introduced into passenger airplanes.FCC and FAA rules governing the use of mobile phones and other portable electronic devices (PEDs) on board airplanes are presented along with a perspective of how these rules are now being rewritten to better facilitate in-flight wireless services. This paper provides a comprehensive overview of NASA cooperative research with the FAA, RTCA, airlines and universities to obtain laboratory radiated emission data for numerous PED types, aircraft radio frequency (RF) coupling measurements, estimated aircraft radio interference thresholds, and direct-effects EMI testing. These elements are combined together to provide high-confidence answers regarding the EMI potential of new wireless products being used on passenger airplanes. This paper presents a vision for harmonizing new wireless services with aeronautical radio services by detecting, assessing, controlling and mitigating the effects of EMI.

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“…Ref. [7] and [8] analyzed the UWB interferences on aeronautical and amateur radio receivers respectively.…”

Section: Introductionmentioning

confidence: 99%

UWB interference to narrowband receivers

Zeng¹,

Zaghloul²,

Annamalai³

et al.

CCNC 2006. 2006 3rd IEEE Consumer Communications and Networking Conference, 2006.

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This paper studies the in-band interference of timehopping spread spectrum (TH-SS) UWB signals to narrow band receivers. Based on the analysis of general power spectral density (PSD) of TH-SS UWB signal, the interference of UWB signal can be partitioned into two parts: (1) additive white Gaussian noise interference (2) jamming tone interference. Following this framework, a novel analytical symbol error rate (SER) evaluation method of BPSK signal due to UWB interferences is proposed. It has been found out that as the number of inband jamming tones increases, the UWB interference effect tends to be closer to the effect of equivalent Gaussian noise.

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UWB EMI to aircraft radios: field evaluation on operational commercial transport airplanes

Cited by 9 publications

References 0 publications

Emission analysis of large number of various passenger electronic devices in aircraft

Emission analysis of large number of various passenger electronic devices in aircraft

Electromagnetic Interference to Flight Navigation and Communication Systems: New Strategies in the Age of Wireless

UWB interference to narrowband receivers

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