DocumentCode
2349593
Title
Nonlinearity estimation and spectral regrowth prediction of power amplifiers using correlation techniques
Author
Li, M.Y. ; Galton, I. ; Larson, L.E. ; Asbeck, P.M.
Author_Institution
California Univ., San Diego, La Jolla, CA, USA
fYear
2005
fDate
2005
Abstract
Nonlinearity estimation and spectral regrowth prediction are crucial to power amplifier linearization. The correlation techniques shown here can estimate amplifier nonlinearity and predict out-of-band power spectrum. Cross-correlation is performed between the output envelope and a test sequence generated from the input signal and can be carried out in background during amplifier operations. The proposed method is applicable to multi-channel DS-CDMA systems and IS-95 forward-link CDMA signals are employed as an example.
Keywords
code division multiple access; correlation methods; nonlinear estimation; power amplifiers; radiofrequency amplifiers; spread spectrum communication; telecommunication channels; IS-95 forward-link CDMA signals; correlation techniques; multichannel DS-CDMA systems; nonlinearity estimation; out-of-band power spectrum; power amplifiers; spectral regrowth prediction; Baseband; Binary sequences; Multiaccess communication; Operational amplifiers; Power amplifiers; Power measurement; Testing;
fLanguage
English
Publisher
ieee
Conference_Titel
Wireless and Microwave Technology, 2005. WAMICON 2005. The 2005 IEEE Annual Conference
Print_ISBN
0-7803-8861-5
Type
conf
DOI
10.1109/WAMIC.2005.1528369
Filename
1528369
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