fractal dimension

Dependence of Fractal Dimension of Biospeckles on Conditions of Illumination: Computer Simulation

There were presented results of computer simulation of processes of scattering of laser light on biological objects with fractal structure. Dependence of fractal dimension of speckle pattern formed under illumination of model of biological object on fractal properties of object of interest and on correlation between diameter of laser beam and dimensions of biofractal was investigated.

Statistics of Poincare Recurrence with Considering Effect of Fluctuations

The basic statistical characteristics of Poincare recurrence are obtained numerically for the logistic map in a chaotic regime. The mean values, variation and recurrence distribution density are calculated and their dependence on a return size is analysed. Afraimovich–Pesin dimension values are obtained. It is verified that the Afraimovich–Pesin dimension corresponds to the Lyapunov exponent. the peculiarities of the influence of noise on the recurrence statistics are studied in local and global approaches.