AN EFFICIENT DESIGN OF DIGITAL DOWN CONVERTER FOR SOFTWARE DEFINED RADIO APPLICATION.
S Parameshwar., M. Rajmohan, Punithavathy Mohan. · International Journal of Advanced Research · 2017
Adaptive wave pipelining is the methodology used for improving the overall performance of Software Defined Radio (SDR).This method is a functional combination of wave pipelining and hybrid technique.Wave pipelining is the methodology used for improving the performance without using the intermediate latches, at the same time it performs the same operation as pipelining.Hybrid technique is the mechanism that is used for introducing registers for achieving the timing constrain.This technique is implemented in the Direct Digital Synthesizer (DDS) which is the integral part of a Digital Down Converter (DDC) in the Digital Front End (DFE)/ Intermediate Frequency (IF) of Software Defined Radio (SDR).This paper presents the principles of wave pipelining and the method for executing the computer algorithm named Coordinate Digital Rotation Digital Computer (CORDIC) using wave pipelining.Xilinx ISE 14.75 design suite is used as the software for simulation of the proposed system.