Application of Multidimensional FFT for the Extraction of Wave Vectors and Computer-Aided Visualization of LDV Measurements

In this contribution the FFT-aided visualisation of LDV scan data, as well as the extraction of various wave parameters are discussed. The robustness of several 2D phase-unwrapping algorithms to the measurement noise are compared. 2D phase unwrapping is used for extraction of local wave vectors' projections on the scan surface. In addition, few implementation details are discussed briefly. Finally, an interactive MATLAB graphical user interface is presented.