Error Correcting Algorithms by Amol Mahurkar

It consists of Viterbi, Trellis, and Cyclic codec (viterbi, trellis, cyclic)

Cyclic_codec_gui(varargin)

Trellis_coding_gui(varargin)

Viterbi_decoding_gui(varargin)

2D Fourier shift by Tim

Cyclically shift a 2D matrix or image using the Fourier shift theorem. (image, shift, fourier)

FourierShift2D(x, delta)

CIRCULANT (v2.0, feb 2009) by Jos (10584)

(yet another, but fast) Circulent Matrix (matrix, matrix manipulation, matrices)

circulant(A,d)

Gray Code Manipulation by William Kahan

Generate Gray Codes and convert them to integers. (cyclic, goniometers, gray codes)

gc2dec(gra)

gray2int(g)

grays(n)