SIMULINK MODELING OF IMAGE REJECTION ALGORITHMS
Kirei Botond Sandor, Topa Marina, Irina Dornean, Fazakas Albert · 2007
Nowadays the manufacture of value-added products is the main interest of every branch of industry. An implementation plan is one of the necessary requirements for obtaining a value- added product. In this paper the implementation plan of an image rejection algorithm in digital domain is presented. The RF signal demodulation in low-IF receivers takes place in two steps. First the RF signal is translated to an intermediary frequency. This down conversion can introduce interferences between the desired signal and the signal in the adjacent band. The elimination of the interfered signal is called image rejection. The implementation uses a Simulink model, as a prove of the theory. A hardware implementation scheme, built on the Simulink model, is given also. Finally, conclusions are drawn and further developments will be discussed.