By Topic

Non-linear amplifier effects in transmit beamforming arrays

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Real, E.C. ; Lockheed Sanders Inc., Nashua, NH, USA ; Charette, D.P.

The effects of memoryless (no feedback) amplifiers with amplitude non-linearities on the output of transmit beamforming arrays is studied. These studies are limited to “small signal” cases where the output signal is not undergoing significant compression by the amplifier; and where the amplifier non-linearities can be approximated well by a cubic polynomial. The performance of three “optimal” beamforming techniques are compared and contrasted when both linear and non-linear amplifiers are used in a two dimensional array. The two dimensional array considered is designed to simultaneously transmit two narrowband signals, at different frequencies, through a common aperture. Attention is focused on the non-linearity induced interaction of the stimulus signals, and the effect this has on the array's outputs as a function of the beamforming technique

Published in:

Acoustics, Speech, and Signal Processing, 1995. ICASSP-95., 1995 International Conference on  (Volume:5 )

Date of Conference:

9-12 May 1995