GLOBECOM 2000 - San Francisco, CA, November 27- December 1, 2000
Blind Adaptive Phase Offset Correction
Wonzoo Chung, William A. Sethares and C. R. Johnson, Jr.
Abstract
This paper introduces a blind adaptive carrier phase offset recovery
scheme based on the Constant Modulus (CM) Algorithm, and analyzes its
behavior. The proposed model, which we call the CM-Derotator,
minimizes the dispersion of the projection of the derotated signal
onto the real axis, and completely removes the phase offset of the
signal in certain situations. By analyzing the cost function of the
CM-Derotator, we investigate its tracking ability, its behavior in the
presence of Inter-Symbol Interference (ISI), and its behavior when
there is statistical dependency between the inphase and quadrature
components.
