Title :
Phase-only adaptive nulling with a genetic algorithm
Author :
Haupt, Randy L. ; Haupt, Sue Ellen
Author_Institution :
USAF Acad., CO, USA
Abstract :
This paper describes a new approach to adaptive phase-only nulling with phased arrays. A genetic algorithm adjusts some of the least significant bits of the beam steering phase shifters in order to minimize the total output power. Using a few bits for nulling speeds convergence of the algorithm and limits pattern distortions. Various results are presented to show the advantages and limitations of this approach
Keywords :
adaptive antenna arrays; adaptive signal processing; antenna phased arrays; antenna radiation patterns; genetic algorithms; jamming; phase shifters; beam steering phase shifters; genetic algorithm; ing speeds convergence; pattern distortions; phase-only adaptive ing; phased arrays; total output power; Adaptive algorithm; Adaptive arrays; Antenna arrays; Beam steering; Genetic algorithms; Interference; Phase shifters; Phased arrays; Power generation; Signal processing algorithms;
Conference_Titel :
Aerospace Conference, 1997. Proceedings., IEEE
Conference_Location :
Snowmass at Aspen, CO
Print_ISBN :
0-7803-3741-7
DOI :
10.1109/AERO.1997.574858
