| 摘要 |
FIELD: decoding of speckle resolution-grams with double exposure. SUBSTANCE: process decoding speckle resolution-grams includes point scanning with perpendicular nondiverging beam, measurement of maximum and minimum values of intensity in interference pictures generated as result of scanning, determination of width and contrast of stripes. In process of single passage along one side of speckle resolution-gram maximum distance between adjacent maxima or minima is found as well as coordinate of point corresponding to this pair of speckles from which point scanning is continued in direction perpendicular to initial to boundaries of speckle resolution-gram, width and contrast of stripes are recorded with subsequent establishment of maximal width with minimal contrast. EFFECT: decreased decoding time, increased authenticity and informativity of decoding. 1 dwg |
