Application of Software Defined Radio in Improving SNR by Empirical Mode Decomposition

Abstract

Software De ned Radios(SDR) are aimed at reducing the e orts required speci cally in Wireless Communication. Many hardware devices are currently being used for communicating via radio waves.The function of SDR is to replace possibly all the hardware stu by software which results in great exibility and portability.This con- cept has opened new windows to the world of digital communication.There has been in existence many avors of such radios recently. This thesis has concentrated on the open source GNU Radio during the work.The GNU Radio Project is related to testing various capabilities of software radios and serves as a testbed for such innova- tions.This thesis deals with utilizing the capabilities of software radios to improve the quality of the incoming signal.Our inclination was towards optimizing the received signal by menas of reducing noise and thus enhancing the overall communication.We present and propose the use of Empirical Mode Decomposition method.This method helps separating out the noise components from the signal so as to improvise.