Title :
Subspace based PN code sequence estimation for direct sequence signals using a simplified Hebb rule
Author :
Dominique, F. ; Reed, Jeff H.
Author_Institution :
Mobile & Portable Radio Res. Group, Virginia Polytech. Inst. & State Univ., Blacksburg, VA
fDate :
6/19/1997 12:00:00 AM
Abstract :
It is known that a tapped delay line filter adapted by the constrained Hebbian rule can blindly estimate the code sequence of a direct sequence (DS) signal, provided that the estimation is symbol synchronous. A modification is proposed to the existing Hebb based blind sequence estimator to reduce the number of computations required; simulation results are presented
Keywords :
FIR filters; Hebbian learning; adaptive filters; code division multiple access; estimation theory; pseudonoise codes; sequences; synchronisation; DS signal; DS-CDMA; Hebb based blind sequence estimator; Hebb rule simplification; constrained Hebbian rule; direct sequence signal; direct sequence signals; soft synchronisation technique; subspace based PN code sequence estimation; symbol synchronous estimation; tapped delay line filter;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19970778
