year 28, Issue 2 (ICOP & ICPET 2022 2022)                   ICOP & ICPET _ INPC _ ICOFS 2022, 28(2): 492-495 | Back to browse issues page

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Investigation of phase-shift algorithms affected by error sources
Mohmammad Khanjani * 1, Sima Hosseini , Morteza Jafari Siavashani , Hadi Borzouei , Ehsan Ahadi Akhlaghi
Abstract:   (432 Views)
In this paper, the responses of phase shift index algorithms have been studied under the influence of three types of error sources. For this purpose, the interference was simulated under different conditions on MATLAB software. Environmental Vibration errors, intensity fluctuations and inaccuracies of phase shift steps with different values were applied to the simulated interference intensity. Then the phase distribution is obtained using four least-squares, Hariharan, N-buckets and averaging algorithms and compared with the assumed distribution. Obtained results is studied in terms of speed, precision and accuracy of algorithms.  Based on the results, the least-square and averaging have the best accuracy and precision.
Keywords: interferometry, phase-shift, error sources, accuracy, precision.
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Type of Study: Experimental | Subject: Special
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