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English
Noun
digital predistortion (countable and uncountable, plural digital predistortions)
- (electronics) A technique used to increase linearity or compensate for nonlinearity in power amplifiers.
2002, Andreas Springer, Robert Weigel, “Integration of RF and Baseband Functionalities”, in UMTS: The Physical Layer of the Universal Mobile Telecommunications System (Signals and Communication Technology), Berlin: Springer, →ISBN, chapter 8 (UMTS Transceiver Design Issues), section 4 (Future Trends), page 257:The result will be the enhancement of the RF performance by means of digital signal processing techniques such as digital predistortion for PA linearization , improved DC-offset compensation for zero-IF receivers, or the above described on-chip calibration of an image-reject receiver (section 8.3.3).
2010, Ke-Lin Du, M. N. S. Swamy, “Linearization techniques”, in Wireless Communication Systems: From RF Subsystems to 4G Enabling Technologies, Cambridge, Cambridgeshire: Cambridge University Press, →ISBN, chapter 11 (RF and microwave subsystems), section 15 (Amplifiers), page 435:However, the extra cost arising from couplers and other components makes such techniques much more expensive than the digital predistortion technique.
2016, Song Hu, Shouhei Kousai, Jong Seok Park, Outmane Lemtiri Chlieh, Hua Wang, “Modulated Signal Measurement”, in Hua Wang, Kaushik Sengupta, editors, RF and mm-Wave Power Generation in Silicon, Amsterdam: Academic Press, →ISBN, part II (RF Power Amplifier Design Examples), chapter 9 (A transformer-based reconfigurable digital polar Doherty power amplifier fully integrated in bulk CMOS), section 4 (Experimental Results), page 268:Additional digital predistortions can further improve the PA linearity, and our PA’s built-in reconfigurability naturally augments such predistortions and potentially reduces their complexities.
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