Title :
Statistical modeling of cross modulation in multichannel power amplifiers using a new behavioral modeling technique
Author :
Gharaibeh, K. ; Steer, M.
Author_Institution :
Dept. of Electr. & Comput. Eng., North Carolina State Univ., Raleigh, NC, USA
Abstract :
A statistically based analysis technique is developed for multichannel amplifier environments enabling in-band and out-of-band intermodulation and cross modulation distortions to be predicted with very little computation. This is coupled with the introduction of a multiple envelope behavioral modeling technique that captures the black box characteristics of multichannel amplifiers. A CDMA two channel amplifier with a two-channel signal is characterized experimentally and verifies the approach presented here.
Keywords :
code division multiple access; correlation methods; distortion; intermodulation distortion; power amplifiers; radiofrequency amplifiers; statistical analysis; CDMA two channel amplifiers; autocorrelation functions; cross modulation distortion; in-band/out-of-band intermodulation distortion; multichannel RF power amplifier cross modulation statistical modeling; multichannel amplifier black box characteristics; multiple envelope behavioral modeling techniques; multiple signal nonlinear interaction; statistical analysis; Digital modulation; High power amplifiers; Jamming; Multiaccess communication; Nonlinear distortion; Power amplifiers; Power generation; Power system modeling; Predictive models; Signal generators;
Conference_Titel :
Microwave Symposium Digest, 2003 IEEE MTT-S International
Conference_Location :
Philadelphia, PA, USA
Print_ISBN :
0-7803-7695-1
DOI :
10.1109/MWSYM.2003.1210948
