Two-dimensional equalization structures with symbol-rate or fractional tap-spacing are used to counteract the combined effects of selective fading and cross-polarization interference in dually polarized digital radio links. After generalizing the known optimum equalizers to the case of two-dimensional complex signals, steady-state analysis is presented based on the evaluation of a bound on the outage probability. Finite-length structures are considered and compared to the optimum linear receiver. The blind acquisition of two-dimensional T- and T/2-spaced equalizers is also shown by using a stop-and-go decision-directed algorithm in a simulation analysis
Synchronous and fractionally-spaced blind equalization in dually-polarized digital radio links / R. Raheli; G. Picchi. - Vol 1(1991), pp. 156-161. ((Intervento presentato al convegno International Conference on Communications, ICC '91 tenutosi a Denver, CO nel 23-26 Jun 1991 [10.1109/ICC.1991.162352].
Synchronous and fractionally-spaced blind equalization in dually-polarized digital radio links
RAHELI, Riccardo;PICCHI, Giorgio
1991
Abstract
Two-dimensional equalization structures with symbol-rate or fractional tap-spacing are used to counteract the combined effects of selective fading and cross-polarization interference in dually polarized digital radio links. After generalizing the known optimum equalizers to the case of two-dimensional complex signals, steady-state analysis is presented based on the evaluation of a bound on the outage probability. Finite-length structures are considered and compared to the optimum linear receiver. The blind acquisition of two-dimensional T- and T/2-spaced equalizers is also shown by using a stop-and-go decision-directed algorithm in a simulation analysisI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
