A decision-directed network for dual-polarization crosstalk cancellationFrequency reuse in the specific form of dual-polarized microwave communication systems has grown in importance in recent years as a practical means of radio spectrum conservation. Ideally the capacity of a given frequency allocation can be doubled through dual-polarization. However, hardware imperfections and propagation effects, particularly rain depolarization, prevent the achievement of this doubling without severe system performance degradation. A decision-directed cross-polarization correction network is presented whose operation depends on only simple base-band signal processing. No pilot tones or frequency offsets are required. The loop can work with any two-dimensional signal set for digital data transmission. The loop has been experimentally verified and provides a means of doubling the data capacity with little performance degradation.
Document ID
19800041782
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Weber, W. J., III (California Institute of Technology, Jet Propulsion Laboratory, Pasadena Calif., United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1979
Subject Category
Communications And Radar
Meeting Information
Meeting: In: ICC ''79; International Conference on Communications