TY - MGZN
AU - Seco, G.
AU - Swindlehurst, A.
AU - Fernandez, J.
T2 - IEEE signal processing letters
Y1 - 2000
VL - 81
IS - 8
SP - 668
EP - 672
DO - 10.1109/SSAP.2000.870210
UR - http://ieeexplore.ieee.org.recursos.biblioteca.upc.edu/document/870210/?reload=true
AB - The estimation of the delay of a known training signal received
by an antenna array in a multipath channel is addressed.
The effect of the co-channel interference is taken
into account by including a term with unknown spatial correlation.
The channel is modeled as an unstructured FIR
filter. The exact maximum likelihood (ML) solution for
this problem is derived, but it does not have a simple dependence
on the delay. An approximate estimator that is
asymptotically equivalent to the exact one is presented. Using
an appropriate reparameterization, it is shown that the
delay estimate is obtained by rooting a low-order polynomial,
which may be of interest in applications where fast
feedforward synchronization is needed.
TI - A polynomial rooting approach for synchronization in multipath channels using antenna arrays
ER -