A CCD delay line Doppler analyser

A CCD spectrum analyzing filter which is compatible with the real time processing of Doppler radar signals is reported. The scheme is based on the coherent memory filter (CMF) principle and has the feature of a simple delay line. Experimental results are presented for a prototype system providing a 50-point transform and performance limits as determined by the fundamental parameters of the CCD. In an extension of the approach it is proposed to interface the analyzer with an analogue tapped delay line in order to effect both range and Doppler processing.