INVESTIGATION OF NOISE AND INFORMATION PROPERTIES OF SPEKLPICTURES AT THE PERIODICAL MOTION OF A SCATTERER OR AN ILLUMINATING BEAM

The investigation of statistical characteristics of speklpictures and the analysis of their noise and information properties at the case of the periodical motion are the aim of the paper. As a result the linear structure of the fluctuation spectrum of the scattered radiation intensity, structure connected with parameters of the scatterer motion and illumination conditions, has been shown for the first time. The possibility of the extraction of the information about parameters of mechanical vibrations of a scattered body and the possibility of the fluctuation suppression in the image, obtained by means of the laser beam scanning on the object surface, have been shown. Functional possibilities of test beds have been extented. The paper results may find their field of application in the contactless measurement of mechanical vibration parameters, information systems with a scanning laser beamAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio