title: Hybrid acousto-optic and digital equalization for microwave digital radio channels.
abstract: Digital radio transmission systems use complex modulation schemes that require powerful signal-processing techniques to correct channel distortions and to minimize bit error rates. We propose combining the computation power of acousto-optic processing and the accuracy of digital processing to produce a hybrid channel equalizer that exceeds the performance of digital equalization alone. Analysis shows that a hybrid equalizer for 256-level quadrature amplitude modulation (QAM) performs better than a digital equalizer for 64-level QAM.
authors.forename: C S
authors.initials: CS
authors.lastname: Anderson
authors.forename: A
authors.initials: A
authors.lastname: Vanderlugt