Design and FPGA Implementation of Sharpened CIC Filters With Specified Number of Adders

U ovom diplomskom radu bavili smo se postupcima dizajna i realizacije polinomno izoštrenih CIC filtara. U razvojnom okruženju MATLAB napravljeni su izračuni polinomijalnih koeficijenata zapisanih kao potencije broja dva korištenjem minimax dizajna za CIC filtar u pojasu preklapanja spektara. S izračunatim koeficijentima razvili smo RTL model izoštrenog CIC filtra koristeći jezik za opis sklopovlja VHDL. Model je optimiziran za implementaciju na programabilnim logičkim poljima (FPGA) te je za isti napravljeno ispitno okruženje, provedena je simulacija te je model uhodan na stvarnom sklopovlju.In this master’s thesis we have been learning about design a realisation of polynomial sharpened CIC filters. In MATLAB desktop environment, a tool has been designed in the purpose of calculating polynomial coefficients in the form of powers of two by using the minimax method for the CIC folding bands. With the calculated polynomials we have developed a physically achievable model of the CIC filter using the program language VHDL. The model is optimised for implementation on FPGA systems. Finally, a testbench has been made for the model and with all simulations run and checked, the model has been transferred to a real development board