Phase Locked Loop using LABVIEW

University essay from Linnéuniversitetet/Institutionen för fysik och elektroteknik (IFE)

Abstract: The phase-locked loop is an important concept in the field of wireless communication. PLL:s have wide-ranging applications in many electronic circuits. The history and the basic principle of the phase-locked loop are discussed. The different building blocks and their roles are also described along with some of the major applications ofphase-locked loops. The thesis mainly describes how to build a phase-locked loop circuit using LabVIEW, as a laboratory experiment intended for a course in Radio Engineering. It was previously implemented in PSpice and this is described for comparison. The basic functions and features of LabVIEW are discussed. The primary circuit of a phase-locked loop is constructed in LabVIEW and its characteristics are noted. Some conclusions are drawn and future work on this phase-locked loop circuit using LabVIEW is suggested.

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