Submission Format for IMS2004 (Title in 18-point Times font)
نویسندگان
چکیده
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. Crosscorrelation 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. Index Terms — spectral analysis, power amplifiers, nonlinearity, amplifier characterization, correlation.
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