Speed converter for SLAR video signals

A relatively simple speed converter is described that can slow down the high-speed burst of a side-looking airborne radar (SLAR) signal to the pulse repetition time so that it can be digitized by a simple medium speed successive approximation type analog-to-digital converter. The basic element of the speed converter is a CCD analog delay line which can sample the analog input with the required high speed and have a much lower readout speed. The speed converter also has application to digital storage oscilloscopes with up to 50 MHz sampling frequency.