Articles with "multipath interference" as a keyword



Multipath interference cancelation in GPS time series under changing physical conditions by means of adaptive filtering

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Published in 2017 at "Earth Science Informatics"

DOI: 10.1007/s12145-017-0331-5

Abstract: Multipath, a highly autocorrelated signal is observable phenomena during time periods longer than the sidereal period of Global Positioning System (GPS) satellites in their constellations. Multipath pattern and sidereal repeat time interaction are examined in… read more here.

Keywords: interference cancelation; multipath interference; time; time series ... See more keywords

Multipath Interference Suppression in Time-of-Flight Sensors by Exploiting the Amplitude Envelope of the Transmission Signal

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Published in 2020 at "IEEE Access"

DOI: 10.1109/access.2020.3023083

Abstract: Time-of-flight (ToF) cameras provide depth information and they have been applied in many areas. However, multipath interference (MpI) affects the depth measurements. This article proposes an algorithm to suppress MpI during ToF camera depth measurements… read more here.

Keywords: multipath interference; time flight; envelope; amplitude envelope ... See more keywords

Measurements and modeling of multipath interference at wavelengths below cable cut-off in a G.654 optical fiber span.

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Published in 2017 at "Optics express"

DOI: 10.1364/oe.25.009305

Abstract: Transmission below the cable cut-off wavelength may be a concern in some systems, especially for an optical supervisory channel (OSC) operating below the signal transmission band in systems built with G.654 fiber. In this work,… read more here.

Keywords: span; cable cut; cable; multipath interference ... See more keywords

Mitigated multipath interference in PAM4 IM/DD optical links using instantaneous mean intensity addressing.

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Published in 2025 at "Optics express"

DOI: 10.1364/oe.553239

Abstract: Multipath interference (MPI) poses a significant challenge for 4-level pulse amplitude modulation (PAM4) signals in short-reach intensity modulation and direct detection (IM/DD) interconnect systems. MPI, arising from signal reflections due to the multiple fiber connectors,… read more here.

Keywords: intensity addressing; intensity; instantaneous mean; multipath interference ... See more keywords

Reducing multipath interference in quasi-single-mode transmission via distributed Raman amplification.

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Published in 2022 at "Optics letters"

DOI: 10.1364/ol.450756

Abstract: In this Letter, we show numerically and experimentally that multipath interference can be reduced significantly by distributed Raman amplification (DRA) in quasi-single-mode transmission using few-mode fibers, owing to the extra differential mode attenuation induced between… read more here.

Keywords: single mode; raman amplification; multipath interference; quasi single ... See more keywords

Machine Learning-Assisted Mitigation of Optical Multipath Interference in PAM4 IM-DD Transmission Systems

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Published in 2025 at "Photonics"

DOI: 10.3390/photonics12040310

Abstract: This paper aims to mitigate multipath interference (MPI) in intensity modulation with direct detection (IM-DD) systems using machine learning techniques, specifically for four-level pulse amplitude modulation (PAM4) systems. We propose a machine learning-assisted MPI mitigation… read more here.

Keywords: scheme; multipath interference; machine; mitigation ... See more keywords