Author: James Adam UetrechtPublisher:
ISBN:
Category :
Languages : en
Pages : 198
Book Description
Filter Distortion and Intersymbol Interference Effects in Direct Sequence Spread Spectrum Systems
Author: James Adam UetrechtFilter Distortion and Intersymbol Interference Effects in Direct-sequence Spread-spectrum Multiple-access Communication Systems
Author: Christopher Lance JohnsonPublisher:
ISBN:
Category :
Languages : en
Pages : 232
Book Description
Filter Distortion Effects in Direct-sequence Spread-spectrum Multiple-access Communication Systems
Author: Robert Johnson IrvinePublisher:
ISBN:
Category :
Languages : en
Pages : 90
Book Description
Narrowband Interference Suppression Techniques Using Decision Feedback Filtering in Direct Sequence Spread Spectrum Systems
Author: Katherine Jauregui LovettePublisher:
ISBN:
Category :
Languages : en
Pages : 108
Book Description
Interference Effects in Direct Sequence Spread Spectrum Communications Systems
Author: Ward James DaviesPublisher:
ISBN:
Category : Electromagnetic interference
Languages : en
Pages : 366
Book Description
Filtering of Direct-sequence Spread Spectrum Systems with Frequency-hop Interference
Author: John Keelan GrosspietschPublisher:
ISBN:
Category : Radio filters
Languages : en
Pages : 350
Book Description
Research in Progress
Author: Performance of DS-CDMA Communication Systems with Generalized Offset QPSK Modulation
Author: Mohamed Adnen LandolsiPublisher:
ISBN:
Category :
Languages : en
Pages : 330
Book Description
1995 IEEE 14th Annual International Phoenix Conference on Computers and Communications
Author: IEEE Communications SocietyPublisher: Institute of Electrical & Electronics Engineers(IEEE)
ISBN: 9780780324930
Category : Computers
Languages : en
Pages : 768
Book Description
Enhanced Time Domain Interference Suppression Techniques
Author: Gary J. SaulnierPublisher:
ISBN:
Category : Adaptive filters
Languages : en
Pages : 0
Book Description
Many methods have been proposed for suppressing interference in a direct sequence spread spectrum signal and a number of these utilize adaptive transversal suppression filters to remove a large portion of the interference prior to despreading. This report investigates the performance of predictive and two-sided adaptive filtering systems and presents a method to improve the performance of the predictive filter by compensating for the distortion introduced into the desired direct sequence signal during the adaptive filtering process. It is shown that the predictive filter acts as a pre-whitener and the two-sided filter acts as a power inverter. Additionally, the two-sided adaptive filter automatically performs the same function as the compensated predictive filter. The performance of the adaptive systems is also studied when there is multipath propagation and it is shown that the presence of multipath allows the filters to partially suppress the desired direct sequence signal, resulting in performance loss. A combination of simulation and analysis was used to perform this study. Simulations were performed using the Signal Processing Work System (SPW) from Alta Group of Cadence Design Systems, Inc.