FPGA Adaptive Predistorter Based on 64QAM Modulation

• Autorzy: Pochmara J. , Katarzyński P.
• Języki publikacji: EN

Abstrakty

EN

This paper presents a predistortion technique compensating for nonlinear distortions caused by HPA (High Power Amplifier) in a QAM (Multilevel Quadrature Modulation) system. Investigations were held both with software and hardware tools. It is confirmed by computer simulation that proposed approach produces a faster convergence speed than traditional computer performed algorithms. Predistortion technique based on programmable logic device is a very attractive from the implementation point of view, because of a low amount of required RAM and rapid convergence from a blind start.

Słowa kluczowe

EN

digital predistortion; HPA; FPGA; RF systems

• Wydawca: Polish Academy of Sciences, Committee of Electronics and Telecommunication
• Czasopismo: International Journal of Electronics and Telecommunications
• Rocznik: 2010
• Tom: Vol. 56, No. 4
• Strony: 387--392
• Opis fizyczny: Bibliogr. 17 poz., wykr.

Twórcy

autor

Pochmara J.

autor

Katarzyński P.

• Chair of Computer Engineering, Poznań University of Technology, Piotrowo 3A, 60-965 Poznań, Poland,

Bibliografia

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