M. : RGGU, 2008. - 112 s. The manual describes the theory and basic methods of processing geophysical data using spectral and correlation-regression analysis , Linear , Optimal and adaptive , filters, Statistical theory of detection of weak signals , classification algorithms and methods of pattern recognition for complex analysis of geophysical observations. The textbook is recommended when studying the course of lectures on the discipline "Theoretical bases of processing geophysical information" . It can be useful for undergraduates, graduate students and specialists studying the application of statistical methods in geophysical research.