Infinite Impulse Response Structure for Amplifier Modeling and Linearization
IEEE Microwave and Wireless Components Letters(2021)
Abstract
Digital predistortion (DPD) is used to compensate for the distortion of power amplifiers (PAs). Inspired by the physical structure of the PA circuit, a feedback structure in the DPD model is favored. In this letter, we proposed an infinite impulse response (IIR) model for PA modeling and linearization, by modifying a generalized memory polynomial (GMP) model. We also propose an iterative identification algorithm to estimate the IIR-DPD coefficients. The experimental results shows that the proposed IIR-GMP model can improve linearization performance compared with the conventional methods.
MoreTranslated text
Key words
Digital predistortion (DPD),infinite impulse response (IIR),nonlinearity,physical structure,power amplifiers (PAs)
AI Read Science
Must-Reading Tree
Example
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined