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Design and implementation of DDC based on CORDIC algorithm

Yinghui Zhao

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Abstract

The traditional NCO based on look-up table method consumes lots of FPGA's resources,to solve this problem,this paper puts forward a numerically controlled oscillator technique based on CORDIC algorithm,the algorithm combines numerically controlled oscillator and digital frequency mixer together.Finally,its high efficiency is manifested by simulation and with high precision and great application value in project.

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What this paper is about

The traditional NCO based on look-up table method consumes lots of FPGA's resources,to solve this problem,this paper puts forward a numerically controlled oscillator technique based on CORDIC algorithm,the algorithm combines numerically controlled oscillator and digital frequency mixer together.Finally,its high efficiency is manifested by simulation and with high precision and great application value in project.

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Available abstract

The traditional NCO based on look-up table method consumes lots of FPGA's resources,to solve this problem,this paper puts forward a numerically controlled oscillator technique based on CORDIC algorithm,the algorithm combines numerically controlled oscillator and digital frequency mixer together.Finally,its high efficiency is manifested by simulation and with high precision and great application value in project.

Key concepts: CORDIC, Field-programmable gate array, Table (database), Lookup table, Computer science, Algorithm, Local oscillator, Value (mathematics)

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