Software Listing of Author : "Tobin Fricke"
- Angular Momentum Operators
- License: Freeware
- Price: 0.00


Computes matrix representations of the Jx, Jy, Jz, J+, and J- operators in a given spin space.
- Publisher: Tobin Fricke
- Date Released: 15-03-2013
- Download Size: 10 KB
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- Platform: Matlab, Scripts
- Block Levinson solver
- License: Shareware
- Price:


BLOCK_LEVINSON(Y, L) solves the matrix equation T * x = y, where T is a symmetric matrix with block Toeplitz structure, and returns the solution vector x. The matrix T is never stored in full (because it is large and mostly redundant), so the input parameter L is actually the leftmost "block column" of T (the leftmost d columns where d is the block dimension). By Keenan Pepper; uploaded with permission.
- Publisher: Tobin Fricke
- Date Released: 26-05-2013
- Download Size: 10 KB
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- Platform: Matlab, Scripts
- Find optimal FIR Wiener filter for multiple inputs
- License: Freeware
- Price: 0.00


MISO_FIRWIENER(N, X, Y) computes the optimal FIR Wiener filter of order N, given any number of (stationary) random input signals as the columns of matrix X, and one output signal in column vector Y. Requires BLOCK_LEVISON.M, also on the file exchange. By Keenan Pepper; uploaded with permission.
- Publisher: Tobin Fricke
- Date Released: 01-04-2013
- Download Size: 10 KB
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- Platform: Matlab, Scripts
- print_heirarchy.m
- License: Shareware
- Price:


Can be helpful in investigating GUI structure.
- Publisher: Tobin Fricke
- Date Released: 21-04-2013
- Download Size: 10 KB
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- Platform: Matlab, Scripts
- zpkfit
- License: Freeware
- Price: 0.00


zpkfit uses the nonlinear least-squares fitter (lsqnonlin) to fit an analytic model of any (fixed) number of poles and zeroes to numerical (presumably measured) frequency response data. It takes as arguments a frequency vector, a frequency response vector, and vectors of the initial guesses of pole and zero locations. The number of poles and zeroes given in the initial guesses determines the order of the model that will be fit. This works extremely well for models that can be well fit by a few poles and zeroes. For more complicated cases, vectfit.m or one of the functions in the System ID toolbox might be more appropriate.
- Publisher: Tobin Fricke
- Date Released: 13-04-2013
- Download Size: 10 KB
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- Platform: Matlab, Scripts