Seismic Toolkit is a software with a graphical interface that processes and displays seismic signal data.
I recently tested a software that was able to plot SAC ASCII and SAC_BIN data format with ease. The software offered several useful features such as zoom, unzoom, plot channel by channel, or plot all channels (tested with up to 125). The plotting options were very flexible and allowed me to easily visualize the data in a variety of ways.
One of the key benefits of the software was its ability to filter the data. The software utilized all filters that are causal recursive IFR (Infinite Impulse Response) written using the bilinear Z-transform in the time domain. The filters were designed using a few number of coefficients, which made them incredibly fast with low memory cost. Additionally, the adaptation factor of frequency was able to prevent deformation in the frequency domain of the transfer function. The filters included the following: Butterworth High-Pass and Low-Pass (n order), Farrer 10s-6s Low-Pass (a combination of rejector and Low-Pass specially designed for removing oceanic noise), Integrator, Derivator, Integrator with cut-off frequency, Derivator with cut-off frequency, Trend removing, Rejector (n-order), Envelop with Hilbert (not recursive at all), compensator of (n-order), Polynomial filter (n-order, not recursive at all).
The software also provided a variety of data plotting options, including channel by channel and all channels. One feature that stood out to me was the ability to view instantaneous time and amplitude information with the mouse pointer. This made it easy to quickly analyze the data and identify any anomalies. Additionally, the software provided Fourier domain options such as Power Spectral Density (PSD) in linear-linear, log-log axes. The software also allowed for independent windows for each channel, instantaneous frequency, and amplitude information with the mouse pointer, zoom, unzoom of spectra. Other features included Dirac, Hilbert transform, Time-Frequency representation (tested until 1 million of points per channel on 3 channels).
Finally, the software included polarization features that gave me an easy and fast particle motion representation in both the horizontal plane and incidence plane. It was also able to automatically compute the best direction with eigen vectors of the covariance matrix, while displaying linearity and planearity coefficient. Overall, the software had many useful features and made analyzing SAC data easier and faster than ever before.
One of the key benefits of the software was its ability to filter the data. The software utilized all filters that are causal recursive IFR (Infinite Impulse Response) written using the bilinear Z-transform in the time domain. The filters were designed using a few number of coefficients, which made them incredibly fast with low memory cost. Additionally, the adaptation factor of frequency was able to prevent deformation in the frequency domain of the transfer function. The filters included the following: Butterworth High-Pass and Low-Pass (n order), Farrer 10s-6s Low-Pass (a combination of rejector and Low-Pass specially designed for removing oceanic noise), Integrator, Derivator, Integrator with cut-off frequency, Derivator with cut-off frequency, Trend removing, Rejector (n-order), Envelop with Hilbert (not recursive at all), compensator of (n-order), Polynomial filter (n-order, not recursive at all).
The software also provided a variety of data plotting options, including channel by channel and all channels. One feature that stood out to me was the ability to view instantaneous time and amplitude information with the mouse pointer. This made it easy to quickly analyze the data and identify any anomalies. Additionally, the software provided Fourier domain options such as Power Spectral Density (PSD) in linear-linear, log-log axes. The software also allowed for independent windows for each channel, instantaneous frequency, and amplitude information with the mouse pointer, zoom, unzoom of spectra. Other features included Dirac, Hilbert transform, Time-Frequency representation (tested until 1 million of points per channel on 3 channels).
Finally, the software included polarization features that gave me an easy and fast particle motion representation in both the horizontal plane and incidence plane. It was also able to automatically compute the best direction with eigen vectors of the covariance matrix, while displaying linearity and planearity coefficient. Overall, the software had many useful features and made analyzing SAC data easier and faster than ever before.
What's New
Version 0.70: N/A