NDLI: Frequency-dependent power amplifier modeling and correction for distortion in wideband radar transmissions

Content Provider	IEEE Xplore Digital Library
Author	Dunn, Z. Yeary, M. Fulton, C.
Copyright Year	2014
Description	Author affiliation: Adv. Radar Res. Center, Univ. of Oklahoma, Norman, OK, USA (Dunn, Z.; Yeary, M.; Fulton, C.)
Abstract	This paper presents initial results on utilizing the Volterra series, more specifically the Memory Polynomial model subset of the Volterra series, to model the power and frequency dependent non-linear distortion of a physical power amplifier. This modeling technique is also used to create the necessary digital predistortion so that, when used in series with the same modeled high power amplifier, the overall system acts solely as a linear function of input power within a given bandwidth. This amplifier modeling and associated digital predistortion are especially useful in wideband radar applications, where digital predistortion allows the amplifier to operate at its highest power added efficiency by operating in its compression region while still behaving linearly. As a result, wideband radar waveforms can be generated at high fidelity, maximizing transmission power with the given equipment while maintaining low range sidelobes. The results section of this paper reports preliminary findings.
Starting Page	61
Ending Page	64
File Size	982412
Page Count	4
File Format	PDF
ISBN	9781479941346
ISSN	15483746
e-ISBN	9781479941322
DOI	10.1109/MWSCAS.2014.6908352
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-08-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Arrays Calibration Radar Predistortion Computational modeling Radar antennas Delays
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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