Title :
The design of all-phase FFT cymometer based on DSP
Author :
Dong, Cuiying ; Ren, Limian
Author_Institution :
Dept. of Inf., Tangshan Coll., Tangshan, China
Abstract :
This paper presents a method of high-precision digital cymometer based on DSP. In the method, high-performance TMS320VC5402 DSP chip is used as the processing core, and the frequency of signals are calculated and corrected by an all phase FFT algorithm. At last, the frequency of the measured signal is displayed by the LED to real time. Experimental results show that the most relative errors of measurement are less than 0.5%, and the precision is high to meet the measurement needs.
Keywords :
LED displays; digital signal processing chips; fast Fourier transforms; frequency measurement; LED display; all-phase FFT cymometer; electronic measuring instrument frequency measurement; high-performance TMS320VC5402 DSP chip; high-precision digital cymometer; Data acquisition; Digital signal processing; Frequency control; Frequency estimation; Measurement uncertainty; Semiconductor device measurement; DSP; FFT; all-phase FFT; cymometer;
Conference_Titel :
Systems and Informatics (ICSAI), 2012 International Conference on
Conference_Location :
Yantai
Print_ISBN :
978-1-4673-0198-5
DOI :
10.1109/ICSAI.2012.6223621
