Optimal Step-Size Constant Modulus Algorithm

The step size leading to the absolute minimum of the constant modulus (CM) criterion along the search direction can be obtained algebraically at each iteration among the roots of a third-degree polynomial. The resulting optimal step-size CMA (OS-CMA) is compared with other CM-based iterative techniques in terms of performance-versus-complexity trade-off.

• Type: Journal
• Year: 2008
• Where: TCOM
• Authors: Vicente Zarzoso, Pierre Comon
• Keywords: Absolute Minimum, Constant Modulus, Step Size, TCOM 2008