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  Physics Express 2012, 2: 14
  Research Article
Application of uncertainty principle on interferogram analysis
  Bing Zhaoa, Jian Wangb  
a Division of Photomechanics, Tongji University, Shanghai 20092, China
b Civil Aviation University of China, Tianjian 300300, China

  Interferogram analysis technique is discussed with information theory and signal processing approaches. Uncertainty principle for fringe signal detection is set up. Its application on the effect of signal length, phase measurement, and strain or slope measurement is discussed. The relationship between the accuracy and spatial resolution for measurand is investigated.
  Interferogram; Uncertainty principle; Spatial resolution; Accuracy  

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