An Optimized Sample Rate Converter for a software radio receiver on FPGA
Ashok Kumar Agarwal, B. Lakshmi · Proceedings of the Conference on Advances in Communication and Control Systems-2013 · 2013
Sample Rate Conversion (SRC) and channelization for a high intermediate frequency signal are the computational intensive tasks to be implemented for the design of a radio receiver. In a multi-standard radio receiver the phenomenon of band pass sampling over samples the required channel with high over sampling ratio (OSR). In this paper we present an optimized cascaded integrator comb filter implementation for SRC of various wireless standards by the method of factorization. Comparison of the hardware resource utilization of this architecture with non-optimized CIC filter reported more than twenty percent reduction in hardware.