Dr. Erol Kalkan, P.E.

QuakeLogic Inc.

Last seen: 9日前 | 2016 年からアクティブ

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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

Programming Languages:
Python, MATLAB, Fortran

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SPECTRAL WHITENING
This function applies whitening to a given signal within user defined frequency band.

12ヶ月前 | ダウンロード 12 件 |

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Time-domain Sinc Interpolation (Resampling)
Time-domain SINC resampling (interpolation) function with a simple example

12ヶ月前 | ダウンロード 16 件 |

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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.

1年以上前 | ダウンロード 2 件 |

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Spectral acceleration, velocity and displacement spectra
This is a MatLAB function to compute linear-elastic damped response spectrum of time series

4年以上前 | ダウンロード 24 件 |

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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.

4年以上前 | ダウンロード 1 件 |

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An automated P-phase Arrival Time Picker with SNR output
PPHASEPICKER is a powerful tool for automatically picking P-phase onsets.

約5年前 | ダウンロード 16 件 |

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spikeRemoval
This function replace or delete unwanted spikes (outliers) exceeding the threshold value using histogram method.

約5年前 | ダウンロード 6 件 |

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smoothing function
smoothCurve offers various different window smoothing options.

約5年前 | ダウンロード 2 件 |

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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.

約5年前 | ダウンロード 5 件 |

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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...

約5年前 | ダウンロード 2 件 |

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Crop and save MatLAB figure as PDF (savePDF)
This simple function nicely crop the figure and save it as PDF

約5年前 | ダウンロード 1 件 |

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inteFD
Computes integration of discrete time-signal in frequency domain

約5年前 | ダウンロード 6 件 |

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diffFD
Computes derivative of discrete time-signal in frequency domain

約5年前 | ダウンロード 5 件 |

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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.

約5年前 | ダウンロード 5 件 |

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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.

約5年前 | ダウンロード 9 件 |

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Piecewise Cubic Spline Interpolation (from NUMERICAL RECIPES in C)
Piecewise Cubic Spline Interpolation (from NUMERICAL RECIPES in C)

約6年前 | ダウンロード 3 件 |

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xcorrFD(x,y)
xcorrFD takes two discrete time signals as input and calculates cross-correlation and delay

6年以上前 | ダウンロード 3 件 |

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Frequency Response Function of Accelerometer (Oscillator)
This code computes frequency response function (FRF) of an accelerometer (SDF Oscillator)

7年弱前 | ダウンロード 1 件 |

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TIME-DOMAIN CROSS-CORRELATION FUNCTION
xcorrTD takes two discrete time signals as input and calculates cross-correlation and delay

7年弱前 | ダウンロード 8 件 |

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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.

7年弱前 | ダウンロード 5 件 |

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Decimate (Downsample) A Signal in Frequency Domain
Frequency domain decimation function to reduce the sampling rate of a signal to a lower rate.

7年弱前 | ダウンロード 1 件 |

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Epoch & Unix Timestamp Converter (epoch2UTC)
Converts an epoch/unix timestamp into a human readable date

7年弱前 | ダウンロード 3 件 |

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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

7年弱前 | ダウンロード 1 件 |

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Graizer-Kalkan (2015) Ground-Motion Prediction Equation
Graizer-Kalkan (2015) Ground-Motion Prediction Equation for earthquake strong motion estimates.

約7年前 | ダウンロード 8 件 |

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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.

約7年前 | ダウンロード 6 件 |

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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

7年以上前 | ダウンロード 5 件 |

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Frequency-domain Zero-padding Resampling (Interpolation)
Frequency domain (FFT-based) resampling of discrete-time signal

7年以上前 | ダウンロード 3 件 |

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Nonlinear-inelastic constant yield displacement response spectra
Compute nonlinear-inelastic constant yield displacement response spectra and input energy parameters

7年以上前 | ダウンロード 3 件 |

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ASCE 41-06 Displacement Coefficient Method
Displacement coefficient method of ASCE 41-06 based on FEMA 440

8年弱前 | ダウンロード 1 件 |

Dr. Erol Kalkan, P.E.

QuakeLogic Inc.

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