Research

As a part of my summer internship at Texas Instruments I worked on designing FIR (Finite Impulse Response) filter coefficients to reduce power consumption. Given the bandwidth and ripple specifications, the problem was formulated as a mixed-integer linear programming problem (MILP), where optimization was done over the gain (continuous) and filter coefficients (fixed-point/integer). By reducing the number of bits in the filter-coefficient representation the number of partial products of the multiplier reduces, thus reducing the hardware expense. I also designed a heuristic multi-pass MILP (optimization is performed over several passes) which is faster but less optimal compared to the MILP approach.