@inproceedings{65fcf025bdcf482390f14f5b361680fd,
title = "Design and implementation of an FFT phase difference measuring method",
abstract = "The conventional phase difference measuring methods in the phase-shift laser range finder are usually implemented with complex hardware circuits and phase discrimination algorithm. In this paper an FFT phase difference measuring method is designed and implemented based on STM32F407VG microcontroller. This method takes the advantage of the pre-set and fixed frequency of the beat signal by setting the analog-to-digital conversion rate precisely and making the input data length of FFT integral multiples of the beat signal period. In this way spectrum correction is no need. The hardware circuits and phase discrimination algorithm is simplified. The test results show that the phase difference measuring accuracy of 1/12000 is achieved.",
keywords = "FFT phase difference measurement, Phase-shift laser range finder, STM32F407VG",
author = "Zhu, \{Xiong Wei\} and Chen, \{Hui Min\}",
year = "2014",
doi = "10.4028/www.scientific.net/AMM.530-531.105",
language = "English",
isbn = "9783038350392",
series = "Applied Mechanics and Materials",
publisher = "Trans Tech Publications",
pages = "105--108",
booktitle = "Advances in Measurements and Information Technologies",
address = "Germany",
note = "2014 International Conference on Sensors Instrument and Information Technology, ICSIIT 2014 ; Conference date: 18-01-2014 Through 19-01-2014",
}