. Families of periodic solutions of the planar restricted three-body problem and their application at designing the orbit for the space radio telescope . A. B. Kreisman . Astro Space Center of Lebedev Physical Institute of Russian Academy of Sciences, Moscow, Russia Abstract: . No abstract Key words: . Very Long Baseline Interferometry (VLBI), celestial mechanics, periodic solutions, planar restricted three-body problem, space radio telescope.

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... Application of Bifurcation Analysis for the Detection of Invariants in Large Dimensional Complex Systems " . Elena Surovyatkina ( Space Research Institute of Russian Academy of Scien ces) . ... The difficulties in the investigation of large dimensional complex systems and the control of the complex processes are well known. The traditional application of statistical methods to complex systems solves the problems of analysis of the most typical and mass processes and its dynamics in time. ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Chirp ionosonde main technical characteristics . ... Linear frequency modulated continuous signals sounding method is relatively simple and has wide application in various special-purpose systems. ... Chirp signals which are applying for ionosphere channel diagnostics usually have10KHz/s -- 1MHz/s. We must point out that under modulation speed increasing there is an increase in noise suppression and resolution power. ...

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... Up: Algorithms . ... The imaging problem can be described as an optimizing problem in mathematics. ... Computer simulations of rotating modulation collimator imaging show that the quality of images from this method is better than that from the traditional cross-correlation method. ... The imaging problem is: . ... The results show that this algorithm can be used in the imaging problem and usually results in a better image than that obtained from a traditional method such as cross-correlation. ...