Title :
Spectral regrowth in microwave amplifiers using transformation of signal statistics
Author :
Gutierrez, H. ; Gard, K. ; Steer, M.B.
Author_Institution :
Center for Adv. Comput. & Commun., North Carolina State Univ., Raleigh, NC, USA
Abstract :
A method is presented for the estimation of spectral regrowth generated by a digitally modulated carrier passed through a nonlinear RF circuit. The estimation is based on developing an analytical expression, for the autocorrelation of the output signal as a function of the input statistics. A complex power series model extracted from measured AM-AM and AM-PM data is used. Comparisons of measured and predicted ACPR values for a CDMA system are made.
Keywords :
Gaussian processes; correlation theory; digital signals; microwave amplifiers; series (mathematics); signal processing; statistical analysis; CDMA system; autocorrelation; complex power series model; digitally modulated carrier; input statistics; measured AM-AM data; measured AM-PM data; microwave amplifiers; nonlinear RF circuit; output signal; signal statistics transformation; spectral regrowth estimation; Autocorrelation; Circuits; Data mining; Digital modulation; Microwave amplifiers; Power system modeling; Radio frequency; Radiofrequency amplifiers; Signal analysis; Statistical analysis;
Conference_Titel :
Microwave Symposium Digest, 1999 IEEE MTT-S International
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
0-7803-5135-5
DOI :
10.1109/MWSYM.1999.779551
