- Tytuł:
- Salehs Model of AM/AM and AM/PM Conversions is not a Model without Memory : Another Proof
- Autorzy:
- Borys, A.
- Powiązania:
- https://bibliotekanauki.pl/articles/226188.pdf
- Data publikacji:
- 2017
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
Saleh's model of AM/AM
Saleh's model of AM/PM
conversions
power amplifiers
memory effect
in-phase representation of nonlinear devices
quadrature representation of nonlinear devices - Opis:
- The so-called Saleh's representation for description of the AM/AM and AM/PM conversions, occurring in communication power amplifiers, consists of two expressions that describe them as functions of a real-valued baseband signal modulating the carrier amplitude. It is a common view that this description forms a model without memory. We show here that the above belief is not correct; just the opposite is true. To prove this, we take into account an equivalent description of the Saleh's model called the quadrature model of bandpass nonlinearities and express it in a form of a nonlinear operator. Afterwards, we check whether this operator possesses a zero memory. To this end, we use an appropriate theorem of the nonlinear systems theory. Finally, as a result of this investigation, we observe that the memory of the above operator is nonzero.
- Źródło:
-
International Journal of Electronics and Telecommunications; 2017, 63, 1; 73-77
2300-1933 - Pojawia się w:
- International Journal of Electronics and Telecommunications
- Dostawca treści:
- Biblioteka Nauki
Artykuł