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
Python, MATLAB, Fortran
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MEDIA DE ME GUSTA
Feeds
Enviada
SPECTRAL WHITENING
This function applies whitening to a given signal within user defined frequency band.
más de 3 años hace | 1197 descargas |
Enviada
Time-domain Sinc Interpolation (Resampling)
Time-domain SINC resampling (interpolation) function with a simple example
más de 3 años hace | 2138 descargas |
Enviada
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.
alrededor de 4 años hace | 623 descargas |
Enviada
Spectral acceleration, velocity and displacement spectra
This is a MatLAB function to compute linear-elastic damped response spectrum of time series
casi 7 años hace | 2480 descargas |
Enviada
Nonlinear multi-axial constant ductility spectra (H,V,tilt)
Robust function to generate multi-component constant-ductility nonlinear-inelastic response spectra.
casi 7 años hace | 303 descargas |
Finding the velocity from displacement
In regards to filtering the seismograms, I developed an automated algorithm: https://www.mathworks.com/matlabcentral/fileexchang...
alrededor de 7 años hace | 0
Enviada
An automated P-phase Arrival Time Picker with SNR output
PPHASEPICKER is a powerful tool for automatically picking P-phase onsets.
más de 7 años hace | 1644 descargas |
Enviada
spikeRemoval
This function replace or delete unwanted spikes (outliers) exceeding the threshold value using histogram method.
más de 7 años hace | 759 descargas |
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smoothing function
smoothCurve offers various different window smoothing options.
más de 7 años hace | 432 descargas |
Enviada
An Automated S-phase Arrival Time Picker with SNR Output
SPHASEPICKER is a powerful tool for automatically picking S-phase onsets.
más de 7 años hace | 489 descargas |
Enviada
AUTODETECT BANDPASS FILTER CORNER FREQUENCIES
cornerFreqs automatically detects appropriate bandpass filter corner frequencies by comparing signal's spectrum with noise spect...
más de 7 años hace | 616 descargas |
Enviada
Crop and save MatLAB figure as PDF (savePDF)
This simple function nicely crop the figure and save it as PDF
más de 7 años hace | 531 descargas |
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inteFD
Computes integration of discrete time-signal in frequency domain
más de 7 años hace | 1110 descargas |
Enviada
diffFD
Computes derivative of discrete time-signal in frequency domain
más de 7 años hace | 543 descargas |
Enviada
COMPUTE SMOOTH FOURIER AMPLITUDE SPECTRUM (smoothFAS)
This function computes Fourier amplitude spectrum and its smoothed version. For smoothing, it uses window averaging.
más de 7 años hace | 366 descargas |
Enviada
SMOOTHING FUNCTION FOR FOURIER AMPLITUDE SPECTRUM
smoothSpectra offers different smoothing options for Fourier amplitude spectrum. Default window function is Konno-Ohmachi.
más de 7 años hace | 613 descargas |
Enviada
Piecewise Cubic Spline Interpolation (from NUMERICAL RECIPES in C)
Piecewise Cubic Spline Interpolation (from NUMERICAL RECIPES in C)
más de 8 años hace | 270 descargas |
Enviada
xcorrFD(x,y)
xcorrFD takes two discrete time signals as input and calculates cross-correlation and delay
más de 8 años hace | 612 descargas |
Enviada
Frequency Response Function of Accelerometer (Oscillator)
This code computes frequency response function (FRF) of an accelerometer (SDF Oscillator)
alrededor de 9 años hace | 355 descargas |
Enviada
TIME-DOMAIN CROSS-CORRELATION FUNCTION
xcorrTD takes two discrete time signals as input and calculates cross-correlation and delay
alrededor de 9 años hace | 896 descargas |
Enviada
NONLINEAR-INELASTIC RESPONSE HISTORY ANALYSIS OF A SDOF OSCILLATOR USING OPENSEES
Fast MatLAB function for nonlinear-inelastic time-history analysis of a SDOF oscillator.
alrededor de 9 años hace | 890 descargas |
Enviada
Decimate (Downsample) A Signal in Frequency Domain
Frequency domain decimation function to reduce the sampling rate of a signal to a lower rate.
alrededor de 9 años hace | 427 descargas |
Enviada
Epoch & Unix Timestamp Converter (epoch2UTC)
Converts an epoch/unix timestamp into a human readable date
más de 9 años hace | 284 descargas |
Enviada
NONLINEAR-INELASTIC MULTI-AXIAL TIME RESPONSE ANALYSIS OF SDOF OSCILLATOR
Robust MatLAB function for nonlinear-inelastic time-history analysis of SDOF oscillator
más de 9 años hace | 414 descargas |
Enviada
Graizer-Kalkan (2015) Ground-Motion Prediction Equation
Graizer-Kalkan (2015) Ground-Motion Prediction Equation for earthquake strong motion estimates.
más de 9 años hace | 599 descargas |
Enviada
Deconvolution of two discrete time signals in frequency domain
Compute deconvolution of two discrete time signals in frequency domain to study wave propagation.
más de 9 años hace | 10962 descargas |
Enviada
P-PHASE ARRIVAL TIME PICKER BASED ON AKAIKE INFORMATION CRITERION
Computes P-phase arrival time in windowed digital single-component seismic recording using AIC
casi 10 años hace | 568 descargas |
Enviada
Frequency-domain Zero-padding Resampling (Interpolation)
Frequency domain (FFT-based) resampling of discrete-time signal
casi 10 años hace | 654 descargas |
Enviada
Nonlinear-inelastic constant yield displacement response spectra
Compute nonlinear-inelastic constant yield displacement response spectra and input energy parameters
casi 10 años hace | 350 descargas |
Enviada
ASCE 41-06 Displacement Coefficient Method
Displacement coefficient method of ASCE 41-06 based on FEMA 440
alrededor de 10 años hace | 234 descargas |
