An investigation into the use of intracell c.c.d.s for analogue and digital signal processing

An exploratory electronically programmable transversal filter suitable for analogue signal processing has been realised and successfully operated. The basic element of the system is an eight sample parallel-operated intracell charge-coupled device. Results obtained in optimising the drive parameters of pulse amplitude, width and time are presented and discussed in relation to device physics and operation. Autocorrelations of unipolar analogue and digital signals are presented. These devices are ideally suitable for incorporation in a system using digital storage of the weighting information. An advantage of introcell c.c.d.s with integrated on-chip control logic would be the ease with which such devices could be interconnected to provide any desired signal-processing capability. This would enable a flexible modular approach to be adopted when designing complex signal processors.