Wideband digital predistortion of solid-state radar amplifiers
- Resource Type
- Periodical
- Authors
- Dunn, Z.; Yeary, M.; Fulton, C.; Goodman, N.
- Source
- IEEE Transactions on Aerospace and Electronic Systems IEEE Trans. Aerosp. Electron. Syst. Aerospace and Electronic Systems, IEEE Transactions on. 52(5):2452-2466 Oct, 2016
- Subject
- Aerospace
Robotics and Control Systems
Signal Processing and Analysis
Communication, Networking and Broadcast Technologies
Power generation
Predistortion
Radar
Power measurement
Wideband
Mathematical model
- Language
- ISSN
- 0018-9251
1557-9603
2371-9877
This paper addresses spectral regrowth caused by wideband signals input into solid-state amplifiers. Unique contributions are a weighted least-squares method for solving predistorter nonlinear model parameters, and a Bayesian method for tracking model parameters in slowly changing systems. Next-generation active phased array radars are the primary application. Past predistortion research has been primarily aimed at narrowband communications, while radar wideband applications have been relatively unexplored. Laboratory measurements confirm our methods.