Abstract
The conventional method of frequency measurement based on traditional fast Fourier transform (FFT) can't provide to an ideal performance due to the fence effect and the leakage of frequency spectrum. As an improved algorithm of the traditional FFT, the all phase FFT (apFFT) spectrum analysis has a perfect performance on suppressing the spectrum leakage and the property of phase invariant. In this paper, a novel method for frequency measurement which takes the advantage of all phase FFT is proposed. This method utilizing two largest spectrum lines of the signal from time-domain provides a higher precision than traditional method. In the paper, a corresponding frequency measurement design based on Field Programmable Gate Array (FPGA) is implemented. The functional simulation results show that the design based on FPGA has better performance compared with the traditional method for frequency measurement.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.