Dr. Erol Kalkan, P.E.
QuakeLogic Inc.
I am a structural engineer and CEO of QUAKELOGIC. I earned my B.Sc. degree in Civil Engineering and M.Sc. degree in Engineering Seismology from the Middle East Technical University. My second M.Sc. degree in Structural Engineering is from the Bosporus (Bogazici) University in Turkey. My doctorate degree in Structural Engineering (major) and in Geotechnical Engineering (minor) is from the University of California, Davis. My postdoctoral studies were at the University of California, Berkeley. I authored and co-authored more than 120 peer-reviewed publications on various issues in structural engineering and engineering seismology. My research and publications are at www.quakelogic.net
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DURCHSCHNITTLICHE ANZAHL DER LIKES
Feeds
Gesendet
SPECTRAL WHITENING
This function applies whitening to a given signal within user defined frequency band.
mehr als 3 Jahre vor | 1198 Downloads |
Gesendet
Time-domain Sinc Interpolation (Resampling)
Time-domain SINC resampling (interpolation) function with a simple example
mehr als 3 Jahre vor | 2138 Downloads |
Gesendet
Complex Mode Indicator Function (CMIF)
This is a robust complex mode indicator function, which can be used to identify Eigen values. A simple example is provided.
etwa 4 Jahre vor | 623 Downloads |
Gesendet
Spectral acceleration, velocity and displacement spectra
This is a MatLAB function to compute linear-elastic damped response spectrum of time series
fast 7 Jahre vor | 2482 Downloads |
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Nonlinear multi-axial constant ductility spectra (H,V,tilt)
Robust function to generate multi-component constant-ductility nonlinear-inelastic response spectra.
fast 7 Jahre vor | 303 Downloads |
Finding the velocity from displacement
In regards to filtering the seismograms, I developed an automated algorithm: https://www.mathworks.com/matlabcentral/fileexchang...
etwa 7 Jahre vor | 0
Gesendet
An automated P-phase Arrival Time Picker with SNR output
PPHASEPICKER is a powerful tool for automatically picking P-phase onsets.
mehr als 7 Jahre vor | 1644 Downloads |
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spikeRemoval
This function replace or delete unwanted spikes (outliers) exceeding the threshold value using histogram method.
mehr als 7 Jahre vor | 759 Downloads |
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smoothing function
smoothCurve offers various different window smoothing options.
mehr als 7 Jahre vor | 432 Downloads |
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An Automated S-phase Arrival Time Picker with SNR Output
SPHASEPICKER is a powerful tool for automatically picking S-phase onsets.
mehr als 7 Jahre vor | 490 Downloads |
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AUTODETECT BANDPASS FILTER CORNER FREQUENCIES
cornerFreqs automatically detects appropriate bandpass filter corner frequencies by comparing signal's spectrum with noise spect...
mehr als 7 Jahre vor | 616 Downloads |
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Crop and save MatLAB figure as PDF (savePDF)
This simple function nicely crop the figure and save it as PDF
mehr als 7 Jahre vor | 531 Downloads |
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inteFD
Computes integration of discrete time-signal in frequency domain
mehr als 7 Jahre vor | 1110 Downloads |
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diffFD
Computes derivative of discrete time-signal in frequency domain
mehr als 7 Jahre vor | 543 Downloads |
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COMPUTE SMOOTH FOURIER AMPLITUDE SPECTRUM (smoothFAS)
This function computes Fourier amplitude spectrum and its smoothed version. For smoothing, it uses window averaging.
mehr als 7 Jahre vor | 366 Downloads |
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SMOOTHING FUNCTION FOR FOURIER AMPLITUDE SPECTRUM
smoothSpectra offers different smoothing options for Fourier amplitude spectrum. Default window function is Konno-Ohmachi.
mehr als 7 Jahre vor | 613 Downloads |
Gesendet
Piecewise Cubic Spline Interpolation (from NUMERICAL RECIPES in C)
Piecewise Cubic Spline Interpolation (from NUMERICAL RECIPES in C)
mehr als 8 Jahre vor | 270 Downloads |
Gesendet
xcorrFD(x,y)
xcorrFD takes two discrete time signals as input and calculates cross-correlation and delay
mehr als 8 Jahre vor | 612 Downloads |
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Frequency Response Function of Accelerometer (Oscillator)
This code computes frequency response function (FRF) of an accelerometer (SDF Oscillator)
etwa 9 Jahre vor | 355 Downloads |
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TIME-DOMAIN CROSS-CORRELATION FUNCTION
xcorrTD takes two discrete time signals as input and calculates cross-correlation and delay
etwa 9 Jahre vor | 896 Downloads |
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NONLINEAR-INELASTIC RESPONSE HISTORY ANALYSIS OF A SDOF OSCILLATOR USING OPENSEES
Fast MatLAB function for nonlinear-inelastic time-history analysis of a SDOF oscillator.
etwa 9 Jahre vor | 890 Downloads |
Gesendet
Decimate (Downsample) A Signal in Frequency Domain
Frequency domain decimation function to reduce the sampling rate of a signal to a lower rate.
etwa 9 Jahre vor | 427 Downloads |
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Epoch & Unix Timestamp Converter (epoch2UTC)
Converts an epoch/unix timestamp into a human readable date
mehr als 9 Jahre vor | 284 Downloads |
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NONLINEAR-INELASTIC MULTI-AXIAL TIME RESPONSE ANALYSIS OF SDOF OSCILLATOR
Robust MatLAB function for nonlinear-inelastic time-history analysis of SDOF oscillator
mehr als 9 Jahre vor | 414 Downloads |
Gesendet
Graizer-Kalkan (2015) Ground-Motion Prediction Equation
Graizer-Kalkan (2015) Ground-Motion Prediction Equation for earthquake strong motion estimates.
mehr als 9 Jahre vor | 600 Downloads |
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Deconvolution of two discrete time signals in frequency domain
Compute deconvolution of two discrete time signals in frequency domain to study wave propagation.
mehr als 9 Jahre vor | 10962 Downloads |
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P-PHASE ARRIVAL TIME PICKER BASED ON AKAIKE INFORMATION CRITERION
Computes P-phase arrival time in windowed digital single-component seismic recording using AIC
fast 10 Jahre vor | 568 Downloads |
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Frequency-domain Zero-padding Resampling (Interpolation)
Frequency domain (FFT-based) resampling of discrete-time signal
fast 10 Jahre vor | 654 Downloads |
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Nonlinear-inelastic constant yield displacement response spectra
Compute nonlinear-inelastic constant yield displacement response spectra and input energy parameters
etwa 10 Jahre vor | 350 Downloads |
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ASCE 41-06 Displacement Coefficient Method
Displacement coefficient method of ASCE 41-06 based on FEMA 440
etwa 10 Jahre vor | 234 Downloads |
