A Digital Frequency Discrimination Design Based on Reusable IP Technology

This paper presents a digital frequency discrimination structure and designs a real-time digital frequency discrimination display circuit on the basis of the principle of CORDIC Algorithm.It uses the revised 8051 IP core as control core and accomplishes the digital frequency discrimination in FPGA and shows the frequency difference between two base-band signals I、Q based on the pipelined CORDIC algorithm structure and differential structure.