NULL STEERING AND PATTERN CONTROL IN SMART ANTENNA ARRAYS

دانشگاه آزاد اسلامی اصفهان(خوراسگان)

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" NULL STEERING AND PATTERN CONTROL IN SMART ANTENNA ARRAYS "

Document Type	:	Latin Dissertation
Language of Document	:	English
Record Number	:	151201
Doc. No	:	ET22993
Main Entry	:	NADEEM ATHER
Title Proper	:	NULL STEERING AND PATTERN CONTROL IN SMART ANTENNA ARRAYS
Note	:	This document is digital این مدرک بصورت الکترونیکی می باشد
Abstract	:	Smart Antennas are used in modem mobile communication systems to enhance thedesired signal and suppress the interjkrence arising due to Co-Channel Interjierence(CCQ, A&cent Channel Interfierence (AC. and multipath. Null Steering and PatternControl in Tracking Beam Smart Antenna Arrays is camrt?ed out to combat theseinterferences. A Numerical Pattern synthesis algorithm is used to synthesize the desiredpatiem with main beam in the direction of the desired signal and nulls in the direction ofthe interferences. Complex weight (Amplitude and Phase) perturbations are used toachieve the desired Array Pattern. The ESPRIT algorithm is used to estimate theDirection OfAm-val (DOA) of the signals. In the DOA estimation, signal environmentswherein, signals uncorrelated with each other and signals completely correlated(Coherent multipath) are considered. Simultaneous estimation of both DOA andfrequency is also done to deal with ACI. The ejJect of change in number of elements of thearray, S . of the signals and separation between the signals is also studied. It is seenthat in the estimation of DOA the ESPRIT algorithm-....,....-...,..tested for theQ1 PC1 bus cardBoth these projects mere sofixare des elopment efforts tonards contributing to dlfferentaspects of Roboucs and lZ1echatronics projects m the Controls and Roboucs Group..
Subject	:	Electericl tess
	:	برق
electronic file name	:	TL46222.pdf
Title and statement of responsibility and	:	NULL STEERING AND PATTERN CONTROL IN SMART ANTENNA ARRAYS [Thesis]