Low-complexity narrowband adaptive beamforming based on symmetrically distributed arrays

Lei Zhang; Wei Liu; Richard J. Langley

doi:10.1117/12.885269

24 May 2011 Low-complexity narrowband adaptive beamforming based on symmetrically distributed arrays

Lei Zhang, Wei Liu, Richard J. Langley

Proceedings Volume 8061, Wireless Sensing, Localization, and Processing VI; 80610F (2011) https://doi.org/10.1117/12.885269
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

Based on the symmetrically distributed array (SDA) structure and the resultant generalised conjugate symmetric property of its optimum weight vector, a transformation matrix is introduced to preprocess the received array data, after which the original complex-valued optimum weight vector is reduced to a real-valued one, so that in the following weight adaptation we can simply remove imaginary part of the weight vector. As a result of this regularization, improved performance is achieved with much lower computational complexity. There is an undetermined phase factor in the transformation matrix and two different cases are studied with beamforming examples provided for each case, supported by simulation results.

Citation Download Citation

Lei Zhang, Wei Liu, and Richard J. Langley "Low-complexity narrowband adaptive beamforming based on symmetrically distributed arrays", Proc. SPIE 8061, Wireless Sensing, Localization, and Processing VI, 80610F (24 May 2011); https://doi.org/10.1117/12.885269

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available