Applying of digital signal processing to optical equisignal zone system

Anton A. Maraev; Aleksandr N. Timofeev; Vadim F. Gusarov

doi:10.1117/12.2184918

22 June 2015 Applying of digital signal processing to optical equisignal zone system

Anton A. Maraev, Aleksandr N. Timofeev, Vadim F. Gusarov

Proceedings Volume 9525, Optical Measurement Systems for Industrial Inspection IX; 95254B (2015) https://doi.org/10.1117/12.2184918
Event: SPIE Optical Metrology, 2015, Munich, Germany

Abstract

In this work we are trying to assess the application of array detectors and digital information processing to the system with the optical equisignal zone as a new method of evaluating of optical equisignal zone position. Peculiarities of optical equisignal zone formation are described. The algorithm of evaluation of optical equisignal zone position is applied to processing on the array detector. This algorithm enables to evaluate as lateral displacement as turning angles of the receiver relative to the projector. Interrelation of parameters of the projector and the receiver is considered. According to described principles an experimental set was made and then characterized. The accuracy of position evaluation of the equisignal zone is shown dependent of the size of the equivalent entrance pupil at processing.

Citation Download Citation

Anton A. Maraev, Aleksandr N. Timofeev, and Vadim F. Gusarov "Applying of digital signal processing to optical equisignal zone system", Proc. SPIE 9525, Optical Measurement Systems for Industrial Inspection IX, 95254B (22 June 2015); https://doi.org/10.1117/12.2184918

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