Linear filters projects and source code

Generates normalized a-weigthing, -weighting, octave and one-third-octave digital filters. in matlab

The following Matlab project contains the source code and Matlab examples used for generates normalized a-weigthing, -weighting, octave and one-third-octave digital filters. . This series of M-files generates normalized A-weigthing, C-weighting, octave and one-third-octave digital filters.

Nonlinear least square optimization through parameter estimation using the unscented kalman filter in matlab

The following Matlab project contains the source code and Matlab examples used for nonlinear least square optimization through parameter estimation using the unscented kalman filter. The Kalman filter can be interpreted as a feedback approach to minimize the least equare error.

Implementations of kalman filter using both message passing algorithm and standard matrix operations in matlab

The following Matlab project contains the source code and Matlab examples used for implementations of kalman filter using both message passing algorithm and standard matrix operations. This is a demo of using message passing algorithm (belief propagation) to implement Kalman Filter.

Function evaluatealphabetaparam evaluates alpha and beta parameters for alpha-beta filter in matlab

The following Matlab project contains the source code and Matlab examples used for function evaluatealphabetaparam evaluates alpha and beta parameters for alpha-beta filter . This function evaluates alpha and beta parameters for alpha-beta filter so that the alpha-beta filter becomes a steady-state Kalman filter.

Function evalabgparam evaluates the best stable values for an alpha-beta-gamma filter in matlab

The following Matlab project contains the source code and Matlab examples used for function evalabgparam evaluates the best stable values for an alpha-beta-gamma filter . This function evaluates alpha, beta and gamma parameters and also test its stability. These parameters can make alpha-beta-gamma filter act like a steady-state Kalman filter.

Generating gaussian filter 2d matrix in matlab

The following Matlab project contains the source code and Matlab examples used for generating gaussian filter 2d matrix. Function Inputs: - Filter_size: size of filter - sigma: standard deviation Function Output: - 2D Gaussian filter matrix Example to plot filter matrix in 3D: g1=Gaussian_filter(50,2); g2=Gaussian_filter(50,7); g3=Gaussian_filter(50,11); figure(1); subplot(1,3,1);surf(g1);title('filter size = 50, sigma = 2'); subplot(1,3,2);surf(g2);title('filter size = 50, sigma = 7'); subplot(1,3,3);surf(g3);title('filter size = 50, sigma = 11');

Digital resistor capacitor (rc) filter in matlab

The following Matlab project contains the source code and Matlab examples used for digital resistor capacitor (rc) filter. Returns equivalent IIR coefficients for an analog RC filter Usage: [B,A] = RC_FILTER(r, c, fs, type);             R is the resistance value (in ohms)             C is the capacitance value (in farrads)             FS is the digital sample rate (in Hz)             type is a character string defining filter type                 Choices are: 'high' or 'low'

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