Direction-Of-Arrival Estimation for Adaptive Antenna Systems
PG Student, Dept. of E&TC Engg , SCOE, Vadgaon (Bk.), Pune-41,India, Mrunal Patil, Dharmendra Ganage, Madan B. Mali · IOSR Journal of Electronics and Communication Engineering · 2014
Adaptive smart antenna system manipulates the signal impinging on various antenna elements in such a way that, the main beam is directed towards the desired signal and a null is formed in the direction of interferers.Such smart antenna systems play a very important role in wireless and military applications as they can increase capacity, coverage range and resolution.To locate the desired signal, in smart antenna system direction of arrival (DOA) estimation algorithms MUSIC and ESPRIT are considered.This paper evaluates and compares MUSIC and ESPRIT DOA estimation algorithms which are mostly used in design of adaptive antenna system.MUSIC and ESPRIT provide a higher resolution and accuracy hence, are explored much in detail.Implementation of MUSIC and ESPRIT shows that, MUSIC is more stable and accurate than ESPRIT therefore, MUSIC is widely used to detect DOA of incoming signals.