Title :
An extended tamed adaptive array against pointing errors
Author :
Kikuma, Nobuyoshi ; Takemura, Shigeharu ; Inagaki, Naoki
Author_Institution :
Dept. of Electr. & Comput. Eng., Nagoya Inst. of Technol., Japan
Abstract :
The performance of adaptive arrays working under the principle of directionally constrained minimization of power (DCMP) deteriorates severely because of pointing errors. In order to solve this pointing error problem, the tamed adaptive array has been proposed which aims to reduce the sensitivity to pointing errors by adding pseudo-noise to the input correlation matrix. The authors analyze the relation between the optimum array weights and pointing errors based on the eigen-decomposition of the input correlation matrix and provide an extended concept of the DCMP tamed adaptive array which can steer its mainbeam flexibly in the desired direction in the presence of pointing errors. Numerical examples are presented.<>
Keywords :
antenna phased arrays; antenna radiation patterns; directive antennas; antenna array; directionally constrained minimization of power; eigen-decomposition; input correlation matrix; optimum array weights; pointing errors; pseudo-noise; tamed adaptive array; Adaptive arrays; Computer errors; Eigenvalues and eigenfunctions; Error analysis; Linear antenna arrays; Matrix decomposition; Phased arrays; Power engineering and energy; Power engineering computing; Vectors;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1989. AP-S. Digest
Conference_Location :
San Jose, CA, USA
DOI :
10.1109/APS.1989.135047
