Some Architectures for Chebyshev Interpolation

Abstract: Digital architectures for Chebyshev interpolation are explored and a variation which is word-serial in nature is proposed. These architectures are contrasted with equispaced system structures. Further, Chebyshev interpolation scheme is compared to the conventional equispaced interpolation vis-a-vis reconstruction error and relative number of samples. It is also shown that the use of a hybrid (or dual) Analog to Digital converter unit can reduce system power consumption by as much as 1/3rd of the original.