A Low Power Architecture of Digital Sinusoid Generator using Cubic Spline Interpolation
Harpreet S. Dhillon, Abhijit Mitra · IETE Journal of Education · 2006
Evaluation of basic functions like sinusoids with hardware/firmware combination is important in many applications for proper implementation of systems. Such a scheme with low power approach is proposed in this paper with cubic spline interpolation. In particular, two different approaches are proposed to find the interpolating polynomial of sin (x) within the range [–π/2, π/2]–one with only one fixed data point and the other with two. The architectures for these are also proposed, which are shown to exhibit flexibility of implementation with low power requirement.