Abstract
This paper is concerned with a new time-domain adaptive predistortion scheme for compensating nonlinearity of high power amplifiers (HPA). A Hammerstein model is adopted to approximate expression of the input-output nonlinear distortion of HPA by using complex polynomial series followed by linear dynamical distortion. According to the Hammerstein model structure, the compensation input to HPA is calculated in a real-time manner so that the linearization from the predistorter input to the HPA output can be attained even if the nonlinear input-output relation of HPA is uncertain and changeable. The effectiveness of the proposed adaptive scheme is validated in numerical simulations.
| Original language | English |
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| Pages (from-to) | 356-361 |
| Number of pages | 6 |
| Journal | Proceedings of the American Control Conference |
| Volume | 1 |
| Publication status | Published - 2003 |
| Event | 2003 American Control Conference - Denver, CO, United States Duration: 2003 Jun 4 → 2003 Jun 6 |
ASJC Scopus subject areas
- Electrical and Electronic Engineering