Paper Info
Title
Modified Generalized Autocorrelation based Estimator for time delays in multipath environment - A tradeoff in estimator performance and number of multipath
Abstract
In this paper, the existing Generalized Autocorrelation based Estimator (GAE) has been modified for estimation of time delays in multipath environment in the presence of uncorrelated noise. Here the multipath propagation output signal is modeled as a superposition of the delayed, attenuated, and filtered versions of the stationary Gaussian stochastic input signal. Accuracy Percentage (AP) performance measure has been used to characterize the performance of the estimators. The modified GAE performance has been compared, obtained both analytically and via simulation, with AP"C"R"L"B the equivalent CRLB expressed in AP. Simulation results show that the performance of the proposed estimator improves with the increase in SNR but deteriorates with the increase in number of multipath.
Year
DOI
Venue
2011
10.1016/j.compeleceng.2010.12.002
Computers & Electrical Engineering
Keywords
Field
DocType
estimator performance,multipath propagation output signal,existing generalized autocorrelation,equivalent crlb,proposed estimator,simulation result,modified generalized autocorrelation,modified gae performance,accuracy percentage,filtered version,multipath environment,performance measure,time delay,multipath propagation
Multipath propagation,Cramér–Rao bound,Mathematical optimization,Superposition principle,Delay spread,Algorithm,Uncorrelated,Real-time computing,Gaussian,Mathematics,Estimator,Autocorrelation
Journal
Volume
Issue
ISSN
37
3
Computers and Electrical Engineering
Citations 
PageRank 
References 
1
0.37
11
Authors
1
Name
Order
Citations
PageRank
Ravinder Nath119223.43