Systems and method for a low power correlator architecture using distributed arithmetic


Provided herein is an implementation of a finite impulse response (FIR) filter that uses a distributed arithmetic architecture. In one or more example, a data sample with multiple bits is processed through a plurality of bit-level multiply and accumulate circuits, wherein each bit of the data sample corresponds to a bit of the data sample. The output of each bit-level multiply and accumulate circuit can then be shifted by an appropriate amount based on the bit placement of the bit of the data sample that corresponds to the bit-level multiply and accumulate circuit. After each output is shifted by the appropriate amount, the outputs can be aggregated to form a final FIR filter result.

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Patent Number: 10,879,877

Date Issued: December 29 2020