Design and Implementation of a High-Speed Inverse Walsh Transform Apparatus

Abstract

<p> In this thesis, a high-speed inverse Walsh transform apparatus was designed and built which sums over the sixteen most dominant coefficients in the time base period. The transform includes a maximum of 64 terms. The Walsh function generator used works with a clock rate up to 10 MHz to produce 64 different sequency terms with accurate timing and hazard free operation. A synchronizing pulse is produced by the circuit to determine the beginning of the Walsh transform period. The final adder stage limits the speed of the apparatus to a 1 MHz square wave. An application of the instrument was made to reconstruct one line of an actual video signal.</p>