scholarly journals Shannon Energy Application for Detection of ECG R-peak using Bandpass Filter and Stockwell Transform Methods

2020 ◽  
Vol 20 (3) ◽  
pp. 41-48
Author(s):  
M. Z. SUBOH ◽  
R. JAAFAR ◽  
N. A. NAYAN ◽  
N. H. HARUN
Keyword(s):  
Bandpass Filter ◽  
Transform Methods ◽  
Shannon Energy ◽  
Energy Application ◽  
Stockwell Transform

Electrochemical noise analysis to identify the corrosion type using the stockwell transform and the shannon energy: Part II

2019 ◽  
Vol 855 ◽  
pp. 113597 ◽  
Author(s):  
O.J. Ramos-Negrón ◽  
R.F. Escobar-Jiménez ◽  
J.H. Arellano-Pérez ◽  
J. Uruchurtu-Chavarín ◽  
J.F. Gómez-Aguilar ◽  
...  
Keyword(s):  
Electrochemical Noise ◽  
Noise Analysis ◽  
Energy Part ◽  
Shannon Energy ◽  
Stockwell Transform

Electrochemical noise analysis to identify the corrosion type using the Stockwell transform and the Shannon energy

2019 ◽  
Vol 836 ◽  
pp. 50-61 ◽  
Author(s):  
O.J. Ramos-Negrón ◽  
J.H. Arellano-Pérez ◽  
R.F. Escobar-Jiménez ◽  
J.F. Gómez-Aguilar ◽  
D. Granados-Lieberman
Keyword(s):  
Electrochemical Noise ◽  
Noise Analysis ◽  
Shannon Energy ◽  
Stockwell Transform

scholarly journals Application of Stockwell Transform and Shannon Energy for Pace Pulses Detection in a Single-Lead ECG Corrupted by EMG Artifacts

2020 ◽  
Vol 10 (21) ◽  
pp. 7505
Author(s):  
Irena Jekova ◽  
Ivo Iliev ◽  
Serafim Tabakov
Keyword(s):  
High Amplitude ◽  
Energy Calculation ◽  
Artifact Detection ◽  
Ecg Signals ◽  
S Transform ◽  
Pacemaker Ecg ◽  
Shannon Energy ◽  
The Time Domain ◽  
Stockwell Transform ◽  
Electrocardiogram Ecg

Electrocardiogram (ECG) analysis is important for the detection of pace pulse artifacts, since their existence indicates the presence of a pacemaker. ECG gives information on the proper functionality of the device and could help to evaluate the reaction of the heart. Beyond the challenges related to the diversity of ECG arrhythmias and pace pulses, the existence of electromyogram (EMG) noise could cause serious problems for the correct detection of pace pulses. This study reveals the potential of a methodology based on Stockwell transformation (S-transform), subsequent Shannon energy calculation and a threshold-based rule for pace artifact detection in a single-lead ECG corrupted with EMG noise. The design, validation and test are performed on a large, publicly available artificial database acquired with high amplitude and time resolution. It includes various combinations of ECG arrhythmias and pace pulses with different amplitudes, rising edges and total pulse durations, as well as timing that corresponds to different pacemaker modes. The training was done over 312 (ECG + EMG) signals. The method was validated on 390 clean ECGs and independently tested on 312 (ECG + EMG) and 390 clean ECGs. The achieved accuracy over the test dataset was Se = 100%, PPV = 98.0% for ECG corrupted by EMG artifacts and Se = 99.9%, PPV = 98.3% for clean ECG signals. This shows that, despite EMG artifacts, the S-transform could distinctly localize the pace pulse positions and, together with the applied ShE, could provide precise pace pulses detection in the time domain.

Standard Specification Illustrates Bandpass Filter Theory

1984 ◽  
Vol 21 (2) ◽  
pp. 179-183
Author(s):  
H. Sutcliffe
Keyword(s):  
Frequency Domain ◽  
Bandpass Filter ◽  
Bandpass Filters ◽  
Impulse Responses ◽  
Standard Specification ◽  
Transform Methods ◽  
Filter Theory ◽  
Time Frequency

Standard specifications for testing interference define characteristics of bandpass filters in a form providing an excellent basis for learning useful concepts. An example introduces time-frequency domain relations, bandpass-lowpass relations, transform methods, convolution and a comparison between impulse responses of idealised and real bandpass filters.

Design of a Dual-Band Bandpass Filter Using Active Inductor Principle

2017 ◽  
Vol 7 (4) ◽  
pp. 342
Author(s):  
Imane Halkhams ◽  
Said Mazer ◽  
Mahmoud Mehdi ◽  
Moulhime El Bekkali ◽  
Wafae El Hamdani
Keyword(s):  
Bandpass Filter ◽  
Dual Band ◽  
Active Inductor

Design of Pseudo-Elliptical Wideband Bandpass Filter Using Stub Loaded Short-Circuited Parallel-Coupled Three-Line Units

2010 ◽  
Vol E93-C (7) ◽  
pp. 1022-1031 ◽  
Author(s):  
Chun-Ping CHEN ◽  
Junya TAKAHASHI ◽  
Zhewang MA ◽  
Tetsuo ANADA ◽  
Jui-Pang HSU
Keyword(s):  
Bandpass Filter
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