Title :
Improving performance of real-symmetric adaptive array by signal blocking
Author_Institution :
Microwave Radar Div., Defence Sci. & Technol. Organ., Australia
fDate :
4/1/1995 12:00:00 AM
Abstract :
The use of signal blocking to improve the performance of a directional constrained adaptive array with real-symmetric weights is proposed. With signal blocking, the adapted beamwidth of the array is broadened, thereby reducing the effect of pointing errors, and the output signal-to-noise-plus-interference ratio (SNIR) converges with less signal samples. A modified sample matrix inversion (SMI) algorithm is described, which allows the adaptive weight vector to be computed more efficiently. Computer simulation results are presented for illustration.<>
Keywords :
adaptive antenna arrays; antenna theory; digital simulation; interference (signal); matrix inversion; adapted beamwidth; adaptive weight vector; computer simulation; directional constrained adaptive array; modified sample matrix inversion algorithm; pointing errors; real-symmetric adaptive array; real-symmetric weights; signal blocking; signal-to-noise-plus-interference ratio; Adaptive arrays; Australia; Computer errors; Computer simulation; Convergence; Covariance matrix; Power generation; Radar detection; Sonar applications; Sonar detection;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
