Efficient digital integration technique filter

摘要

An efficient digital integration technique (EDIT) filter uses a local oscillator pattern to provide the desired weighting for an input signal. A product waveform is determined by multiplying the local oscillator pattern and the input signal. The product waveform is then summed by a summing circuit with no additional multiplies. The output of the summing circuit is the filtered signal. Thus, a single multiply operation is required for the filter, thereby reducing costs.