Joint Time-Frequency Scattering The JTFS transform is inspired by biology. Research into the primary auditory cortex has demonstrated the existence of spectro-temporal receptive fields (STRFs) at the cortical level. The STRF of a neuron is a function of time and frequency, which describes its ...
Joint Time-Frequency Scattering Transform of Signal This example uses: Copy CodeCopy Command Create a single-precision random signal with three channels and 1024 samples representing a batch of 5. Save the signal as adlarrayin"CTB"format.
This MATLAB function returns the first- and second-order time wavelet filter banks, psi1f and psi2f respectively, the time lowpass filter phift, and the metadata timemeta for the time filters in the joint time-frequency scattering (JTFS) network.
This MATLAB function plots the spin-up and spin-down coefficients of the joint time-frequency scattering (JTFS) transform cfs using the coefficient metadata meta and the JTFS network jtfn.
Simulation algorithms for measuring backscattering from dielectric-coated wire; Application of short-time Fourier transform (STFT) technique for extracting pertinent scattering physics of the structure; Time-frequency distribution series; Conclusions.Ozdemir...
The wideband return from a circular waveguide cavity is investigated in the joint time-frequency space using the reassigned joint time-frequency (RJTF) transform. Equations for generating the reassigned joint time-frequency distribution from a frequency domain signal are presented. The performance of th...
time-frequency analysisAn adaptive time–frequency analysis technique based on the AGR (Adaptive normalized Gaussian basis Representation) is applied to the analysis of electromagnetic scattering responses. Unlike the short-time Fourier transform and wavelet transform, the ADS (Adaptive Spectrogram) obtained...
Detection of fracture properties can be implemented using azimuth-dependent seismic inversion for optimal model parameters in time or frequency domain. Considering the respective potentials for sensitivities of inversion resolution and anti-noise perform
Moreover, the higher the frequency the greater will be the heat input into the work as can be seen by the different heat bands in Fig. 6.8. To produce suchweld patterns requires either moving the work on a X-Y table or a laser beam manipulation system. Both of these facilities are ...
loadquadchirplen = numel(quadchirp); jtfn = timeFrequencyScattering(SignalLength=len,...FrequencyInvarianceScale=128); Use thenumFirst2SecondFilterBankobject function to obtain the number of first-order time wavelet filter paths going through each second-order time wavelet filter. Find the maximum...