The New Jersey Institute of Technology's
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Title:	An adaptive correlator receiver for combined suppression of co-channel interference and narrow-band jammers in a slowly fading channel
Author:	Carbone, Raymond
View Online:	njit-etd1994-071 (ix, 77 pages ~ 2.5 MB pdf)
Department:	Department of Electrical and Computer Engineering
Degree:	Master of Science
Program:	Electrical Engineering
Document Type:	Thesis
Advisory Committee:	Haimovich, Alexander (Committee chair) Ansari, Nirwan (Committee member) Siveski, Zoran (Committee member)
Date:	1994-10
Keywords:	Adaptive filters. Spread spectrum communications.
Availability:	Unrestricted
Abstract:	This work deals with the adaptive correlation of a direct sequence spread spectrum signal in the presence of narrow-band, multipath and multiple user interference. The Least Mean Square and Recursive Least Square algorithms are employed for the adaptive convergence of the correlator receiver to minimize the mean squared error. The performance of the adaptive correlator is compared with the matched filter correlator receiver and the conventional prediction filter for the suppression of narrow-band interference by calculating the bit error probability rate. The adaptive correlator is also compared with the RAKE receiver for multipath suppression and compared to the decorelating detector for the suppression of multiple user interference. It is shown that the adaptive correlator is capable of suppressing interference when the spread spectrum signal is corrupted by a combination of disturbances, such as narrow-band jammers and multipath or multiple users on the same channel.