EAN: 9789812878281

SPRINGERBRIEFS IN ELECTRICAL AND COMPUTER ENGIN...

In this book  a modified improved LMS algorithm is employed for weight adaptation of dipole
array for the generation of beam pattern in multiple signal environments. In phased arrays  the
generation of adapted pattern according to the signal scenario requires an efficient adaptive
algorithm. The antenna array is expected to maintain sufficient gain towards each of the
desired source while at the same time suppress the probing sources. This cancels the signal
transmission towards each of the hostile probing sources leading to active cancellation. In the
book  the performance of dipole phased array is demonstrated in terms of fast convergence 
output noise power and output signal-to-interference-and noise ratio. The mutual coupling
effect and role of edge elements are taken into account. It is established that dipole array
along with an efficient algorithm is able to maintain multilobe beamforming with accurate and
deep nulls towards each probing source. This work has application to the active radar cross
section (RCS) reduction. This book consists of formulation  algorithm description and result
discussion on active cancellation of hostile probing sources in phased antenna array. It
includes numerous illustrations demonstrating the theme of the book for different signal
environments and array configurations. The concepts in this book are discussed in an
easy-to-understand manner  making it suitable even for the beginners in the field of phased
arrays and adaptive array processing.

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