Multipliers of delta-sigma sequences

Multipliers of two delta-sigma sequences are proposed in this paper. These multipliers are very simple in circuitry and provide the product in delta-sigma sequence form, permitting simple further processing. The multipliers were constructed and their performance was experimentally measured. It was found that a certain type of multiplier with a relatively simple circuitry, provides a high signal to noise ratio. An application of this multiplier is given for the realization of a parallel type digital correlator.