Referenceless one-dimensional Nyquist ghost correction in multicoil single-shot spatiotemporally encoded MRI.
Sign Up to like & getrecommendations! Published in 2017 at "Magnetic resonance imaging"
DOI: 10.1016/j.mri.2016.11.024
Abstract: Single-shot spatiotemporally encoded (SPEN) MRI is a novel fast imaging method capable of retaining the time efficiency of single-shot echo planar imaging (EPI) but with distortion artifacts significantly reduced. Akin to EPI, the phase inconsistencies… read more here.
Keywords: ghost; shot; correction; single shot ... See more keywords
Photonic Circuit Topologies for Optical OFDM and Nyquist WDM
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DOI: 10.1109/jlt.2016.2618388
Abstract: Photonic circuits are the key to advanced functionality in future optical systems, as they efficiently process terabit/s data streams. This paper reviews how photonic circuit topologies have evolved to support high-spectral efficiency modulation formats, including:… read more here.
Keywords: division multiplexing; circuit topologies; ofdm nyquist; nyquist ... See more keywords
Bit-Error Ratio Performance Improvement Using Iterative Decoding for Polybinary-Shaped Super-Nyquist Wavelength Division Multiplexed Signals
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2017.2753819
Abstract: In super-Nyquist wavelength division multiplexed (WDM) systems with frequency spacing smaller than the signal baudrate, the maximum-likelihood (ML) decoder in the receiver is usually introduced to compensate for intersymbol interference due to tight spectral filtering,… read more here.
Keywords: shaped super; nyquist wdm; nyquist; super nyquist ... See more keywords
A Computational Efficient Nyquist Shaping Approach for Short-Reach Optical Communications
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DOI: 10.1109/jlt.2019.2961506
Abstract: Recently, Half-Cycle Nyquist Subcarrier Modulation (HC-SCM) was proposed to achieve high spectral efficiency in intensity-modulator direct-detection optical links. This paper shows that the HC-SCM scheme has a high computational load and proposes the rational Oversampled… read more here.
Keywords: computational efficient; nyquist; shaping approach; nyquist shaping ... See more keywords
Low-Loss Optical Nyquist Pulse Train Generation Using Nonauxiliary Wavelength Selective Switch in Communication Band
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Photonics Journal"
DOI: 10.1109/jphot.2019.2905687
Abstract: We report low-loss optical Nyquist pulse train generation using a non-auxiliary wavelength selective switch (WSS). The typical approach for optical Nyquist pulse train generation involves two procedures. The first is conversion from a laser output… read more here.
Keywords: pulse train; nyquist; nyquist pulse; loss ... See more keywords
Multifunctional Wavelength-Selective Switch for Nyquist Pulse Generation and Multiplexing
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Photonics Technology Letters"
DOI: 10.1109/lpt.2018.2866098
Abstract: We demonstrate optical Nyquist pulse train generation using a wavelength-selective switch (WSS) without an optical multiplexing circuit. The representative approach generating optical Nyquist pulse trains is based on spectral filtering with a WSS and optical… read more here.
Keywords: pulse train; wavelength selective; nyquist; optical nyquist ... See more keywords