Abstract

In this paper we demonstrate application of the fractional sample delayor (FSD) to constructing sampling rate converters for incommensurate sampling rates. We use Lagrange polynomials for interpolating the values of the signal between sampling instants. It is shown that to deploy this technique effectively one has to use polynomials of high degree. Otherwise the interpolation error for high frequencies (above half Nyquist) is very big. Increasing the polynomial's degree leads inevitably to numerical problems. The interpolation process may be improved when additional samples of the signal are generated before interpolation. It is shown that FSD can be used for achieving this task. The final version of the sampling rate converter comprises two FSDs and a very simple four-point interpolator based on a Lagrange polynomial. >

Full Text

Published Version

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.