Scalar-Metric-Based Digital Predistortion Model Extraction Using Out-of-Band Power-Driven Stochastic Optimization
This article proposes a scalar-metric-based digital predistortion (DPD) model extraction architecture for radio frequency (RF) power amplifiers (PAs), where DPD coefficients are extracted using only scalar performance metrics rather than time-domain feedback signals. By formulating DPD coefficient adaptation as a black...