Results 141 to 150 of about 55,369 (264)
Evolution Nonlinear Diffusion‐Convection PDE Models for Spectrogram Enhancement
, 2008 B. Dugnol +3 more
openalex +2 more sources
Micro-Doppler Clutter Removal Method Based on the Cancelation of Sliding STFT Spectrogram
, 2022 Xianrong Wan +4 more
openalex +2 more sources
Optical Kerr Gating as a Strategy for Noise Reduction in Femtosecond Stimulated Raman Spectroscopy
Journal of Raman Spectroscopy, EarlyView.We report an experimental approach, where an Optical Kerr gate is incorporated with Femtosecond Stimulated Raman Spectrometry (FSRS). The gate functions as a temporal filter that preferentially suppresses the FSRS inherent background. FSRS spectra are reported with the Kerr‐gated methodology with significantly improved SNR compared to the conventional ...
Spyridon Kaziannis +5 more
wiley +1 more source
Laser &Photonics Reviews, EarlyView.The miniaturization of metrology and precision spectroscopy systems requires robust, turn‐key microcombs with broad bandwidth, low threshold, and high efficiency. Here, high‐Q, dispersion‐engineered microresonators in a high‐confinement nonlinear SiC platform, combined with waveguide‐enabled thermal management and laser cooling, enable deterministic ...
Yi Zheng +7 more
wiley +1 more source
MelHuBERT: A simplified HuBERT on Mel spectrograms [PDF]
, 2022 Tzu-Quan Lin, Hung-yi Lee, Hao Tang
openalex +1 more source
Highly Versatile Real‐Time Optical Noise Filtering Through Temporal Cloaking
Laser &Photonics Reviews, EarlyView.Conventional bandpass filtering strategies may be insufficient for recovering optical waveforms under extremely noisy conditions. We demonstrate a temporal‐cloaking denoising strategy enabled by the temporal Talbot effect, which concentrates the coherent signal of interest into short temporal slots while broadband noise remains temporally spread.
Majid Goodarzi +5 more
wiley +1 more source
Wavelet-Analysis of Cardiosignals Using Matlab
Известия высших учебных заведений России: Радиоэлектроника, 2017 This article is devoted to the problem of accurate detection of cardiosignal QRS-complexes for early diagnosis of various diseases of human cardiovascular system.
B. F. Badalyan +2 more
doaj
Steganography on Audio Wave Tenth Layer by Using Signal to Noise Ratio Test and Spectrogram Analyses
, 2018 Sumit Kumar Moudgil +2 more
openalex +1 more source
Mode‐Locked Pulse Generation in Plasmonic Lattices
Laser &Photonics Reviews, EarlyView.The plasmonic superlattices overlaid with optically pumped organic molecules produce multimode lasing due to mid‐range radiative coupling (MR‐RC, lambda) and long‐range radiative coupling (LR‐RC, 10 lambda). Right: The mode locking emerges spontaneously due to the shared excited state molecular populations which may emit photons to various different ...
Janne I. Heikkinen +6 more
wiley +1 more source