Digital post-distortion of radio receivers and analog-to-digital converters
To the authors'best knowledge, the concept of post-distorted receivers appeared in the early 1990s [1,2]. Initially, post-distortion was thought as a solution for compensating intermodulation distortions resulting from the AM-AM and AM-PM non-linear behaviour of a mobile terminal power amplifier at the base-station receiver side. It was then considered as an alternative to pre-distortion that aimed to relax out-of-band emission specifications of portable transmitters while improving their power efficiency.
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