Title :
Broadband phase angle calibration device based on digital sampling and DFT interpolation algorithm
Author :
Haibin Jin ; Li You ; Zhiyuan Hu ; Jing Wu
Author_Institution :
Beijing Orient Inst. of Meas. & Test (BOIMT), Beijing, China
Abstract :
Based on the digital sampling technology, a new broadband phase difference calibration device is developed. The DFT and interpolation compensation algorithms under non-integer period sampling are used. The construction, sampling strategy and compensation algorithm of the calibration device are introduced in detail. Its uncertainty is evaluated and verified by experiments. The frequency of the device covers 10Hz~100kHz and the best measurement uncertainty on the phase difference is 0.0006°.
Keywords :
calibration; discrete Fourier transforms; interpolation; sampling methods; signal processing; DFT interpolation algorithm; broadband phase angle calibration device; digital sampling; discrete Fourier transform; frequency 10 Hz to 100 kHz; interpolation compensation algorithm; noninteger period sampling; sampling strategy; Broadband communication; Calibration; Measurement uncertainty; Phase measurement; Resistors; Uncertainty; Voltage measurement;
Conference_Titel :
General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI
Conference_Location :
Beijing
DOI :
10.1109/URSIGASS.2014.6929013
