2009Mechanical & Electrical Engineering MagazineRequires access

Real-time phase difference measurement method with FPGA speeding up

Guoxiong Wang

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Abstract

In order to measure the phase difference at high speed,using the analyzing solution in frequency domain,with the field programmable gate array(FPGA),the FFT transformation was finished.The coordinate rotation digital computer(CORDIC) algorithm was used to improve the performance of the FPGA.A new real-time phase difference measurement method was proposed.The simulation results show that accurate measurement result can be obtained at high speed.

About this research paper

What this paper is about

In order to measure the phase difference at high speed,using the analyzing solution in frequency domain,with the field programmable gate array(FPGA),the FFT transformation was finished.The coordinate rotation digital computer(CORDIC) algorithm was used to improve the performance of the FPGA.A new real-time phase difference measurement method was proposed.The simulation results show that accurate measurement result can be obtained at high speed.

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Available abstract

In order to measure the phase difference at high speed,using the analyzing solution in frequency domain,with the field programmable gate array(FPGA),the FFT transformation was finished.The coordinate rotation digital computer(CORDIC) algorithm was used to improve the performance of the FPGA.A new real-time phase difference measurement method was proposed.The simulation results show that accurate measurement result can be obtained at high speed.

Key concepts: CORDIC, Field-programmable gate array, Fast Fourier transform, Phase difference, Computer science, Rotation (mathematics), Measure (data warehouse), Phase (matter)

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