Development of an MCPA Using Digital Pre-Distortion
نویسندگان
چکیده
منابع مشابه
Fundamentals of Power Amplifier Linearization Using Digital Pre-Distortion
Pre-distortion is basically a method by which one first stimulates a non-linear power amplifier (PA) with baseband samples and then observes the result of that stimulus at the PA output. Then , the amplitude-toamplitude modulation (AM/AM) and amplitude-to-phase modulation (AM/PM) effects of the PA are estimated. These estimated distortions are then removed from the PA by pre-distorting the inpu...
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OFDM communications require extreme linearity of High Power Amplifiers (HPA) to avoid Inter-Carrier Interference (ICI) and subsequent degradation of the BER and Quality of Service (QoS). Amplitude (AM/AM) and Phase (AM/PM) amplifier non-linearities can be compensated in a number of ways. Nevertheless, digital adaptive schemes based on least squares optimization criteria need estimate the delay ...
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ژورنال
عنوان ژورنال: The Journal of the Institute of Image Information and Television Engineers
سال: 2005
ISSN: 1881-6908,1342-6907
DOI: 10.3169/itej.59.747