Fracture detection from Azimuth-dependent seismic inversion in joint time–frequency domain
Sign Up to like & getrecommendations! Published in 2021 at "Scientific Reports"
DOI: 10.1038/s41598-020-80021-w
Abstract: Detection of fracture properties can be implemented using azimuth-dependent seismic inversion for optimal model parameters in time or frequency domain. Considering the respective potentials for sensitivities of inversion resolution and anti-noise performance in time and… read more here.
Keywords: inversion; frequency; time frequency; frequency domain ... See more keywords
Joint Time-Frequency Inversion for Seabed Properties of Ship Noise on a Vertical Line Array in South China Sea
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Access"
DOI: 10.1109/access.2018.2876567
Abstract: Geoacoustic inversion is an effective method to obtain the bottom parameters in the deep ocean. This paper proposes a joint time–frequency inversion strategy for bottom surveying from an experiment conducted in the South China Sea… read more here.
Keywords: south china; inversion; frequency; time frequency ... See more keywords
Enhanced Optical Communications Through Joint Time-Frequency Multiplexing Strategies
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2019.2942452
Abstract: We present a power-efficient and reduced-complexity all-optical approach to generate high-bit rate superchannels, based on joint time-frequency multiplexing. Both optical orthogonal frequency division multiplexing (OFDM) and Nyquist-optical time division multiplexing (N-OTDM) signals are generated and… read more here.
Keywords: time; enhanced optical; frequency; time frequency ... See more keywords
Scalar Feedback-Based Joint Time-Frequency Precoder Interpolation for MIMO-OFDM Systems
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Wireless Communications Letters"
DOI: 10.1109/lwc.2020.2997763
Abstract: In MIMO-OFDM systems, knowledge of the precoding matrix enables effective resource allocation for high rates and low BER. However, feeding back precoders for all subcarriers introduces large overheads. Past work has shown that the orthonormal… read more here.
Keywords: frequency; ofdm systems; feedback; mimo ofdm ... See more keywords
Joint Time–Frequency Scattering
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Signal Processing"
DOI: 10.1109/tsp.2019.2918992
Abstract: In time series classification and regression, signals are typically mapped into some intermediate representation used for constructing models. Since the underlying task is often insensitive to time shifts, these representations are required to be time-shift… read more here.
Keywords: time; frequency scattering; time shift; time frequency ... See more keywords