Results 21 to 30 of about 195,242 (267)

Real-time damage detection of bridges using adaptive time-frequency analysis and ANN [PDF]

open access: yesNumerical Methods in Civil Engineering, 2019
Although traditional signal-based structural health monitoring algorithms have been successfully employed for small structures, their application for large and complex bridges has been challenging due to non-stationary signal characteristics with a high ...
V. Ahmadian   +2 more
doaj   +1 more source

Real-Time Heart Rate Detection Method Based on 77 GHz FMCW Radar

open access: yesMicromachines, 2022
This paper proposes a real-time heart rate detection method based on 77 GHz FMCW radar. Firstly, the method establishes a new motion model according to respiratory and heartbeat rules, and extracts the motion signals of the chest and the abdomen; then ...
Xiaohong Huang, Zedong Ju, Rundong Zhang
doaj   +1 more source

A Novel Signal Detection Scheme Based on Adaptive Ensemble Deep Learning Algorithm in SC-FDE Systems

open access: yesIEEE Access, 2020
Reliable signal detection plays an essential role in enhancing the quality of signal transmission in wireless communication systems. In this paper, we combine signal detection theory with a deep learning model and propose a novel signal detection scheme ...
Yuanjian Qiao   +4 more
doaj   +1 more source

Recursive Parametric Tests for Multichannel Adaptive Signal Detection

open access: yes2006 IEEE 12th Digital Signal Processing Workshop & 4th IEEE Signal Processing Education Workshop, 2006
The parametric Rao and generalized likelihood ratio test (GLRT) detectors, recently developed by exploiting a multi channel autoregressive (AR) model for the disturbance, has been shown to perform well with very limited or no training data. The AR model order, however, should be estimated by some model order selection technique.
K.J. Sohn, H. Li, B. Himed
openaire   +1 more source

Joint FrFT‐FFT basis compressed sensing and adaptive iterative optimization for countering suppressive jamming

open access: yesETRI Journal, 2019
Accurate suppressive jamming is a prominent problem faced by radar equipment. It is difficult to solve signal detection problems for extremely low signal to noise ratios using traditional signal processing methods.
Yang Zhao   +5 more
doaj   +1 more source

Acoustic Tracking of Pitch, Modal, and Subharmonic Vibrations of Vocal Folds in Parkinson’s Disease and Parkinsonism

open access: yesIEEE Access, 2019
The prominent and early presence of dysphonia is considered a valuable marker for differentiation of idiopathic Parkinson's disease and parkinsonian syndromes.
Jan Hlavnicka   +4 more
doaj   +1 more source

Persymmetric subspace adaptive detection and performance analysis

open access: yesThe Journal of Engineering, 2019
This study deals with the problem of detecting a subspace signal in coloured Gaussian noise, where the subspace signal belongs to a known subspace, but with unknown coordinates. The authors exploit the persymmetric structure of the covariance matrix by a
Yongchan Gao   +3 more
doaj   +1 more source

Nonsupervised adaptive signal detection and pattern recognition

open access: yesInformation and Control, 1964
Adaptive signal detection and pattern recognition can be viewed as a problem in statistical classification wherein the partitioning of an n-dimensional sample space into category (signal) regions is determined through estimation from a set of samples from the categories.
Cooper, David B., Cooper, Paul W.
openaire   +1 more source

Imaging of High‐Risk Neuroblastoma: Recommendations From SIOPEN Radiology and Nuclear Medicine Specialty Committees

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Neuroblastoma is the most common extracranial solid tumor in early childhood. Its clinical behavior is highly variable, ranging from spontaneous regression to fatal outcome despite intensive treatment. The International Society of Pediatric Oncology Europe Neuroblastoma Group (SIOPEN) Radiology and Nuclear Medicine Specialty Committees ...
Annemieke Littooij   +11 more
wiley   +1 more source

Adaptive Single Photon Compressed Imaging Based on Constructing a Smart Threshold Matrix

open access: yesSensors, 2018
We demonstrate a single-photon compressed imaging system based on single photon counting technology and compressed sensing theory. In order to cut down the measurement times and shorten the imaging time, a fast and efficient adaptive sampling method ...
Wentao Shangguan   +5 more
doaj   +1 more source

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