|
|
 Выпуск 54
- Samkov L. Forecasting project of outer-space infrastructure: ballistics and logistics
We sketch main principles of forecasting projection and develop a forecasting project of the infrastructure for commercial exploration of outer space and of celestial bodies. We suggest a modification of the IAU System of Astronomical Constants, which seems more convenient for experts. Then we discuss the basic scenario of outer space infrastructure operation, the one focusing on the exploration of Mars and asteroids. The discussion is accompanied with models and calculations. We also suggest principles for the goods’ and services’ billing based on insurance valuations.
- Bulgakov S., Khametov V. Recovery of square-integrable function from observations with gaussian errors
The aim of the article is to construct a solution for the problem of the optimal recovery (in the mean-square sense) of a measurable square-integrable (with respect to the Lebesgue measure) function defined on a finite-dimensional compact set. We prove optimal recovery procedure and establish conditions of its unbiasedness and consistency. Furthermore, an eps^1/2-optimal stochastic recovery procedure is proposed and proved.
- Pozdyayev V. Dual form reduction in the atomic optimization method
Unidimensional optimization problems with polynomial objective function and inequality constraints are considered. For problems dual to their linear relaxations a transformation is presented that makes them compatible with the atomic optimization method, both in its basic and in the generalized form with a reduced number of atoms.
- Zatonskiy A., Yanchenko T. Regional social potential management based on second order regression-differential model
We show that traditional econometric models and autoregressive models of order one cannot be used to forecast the regional social potential. We suggest a short-term forecasting model based on an autoregressive model or order two. We analyze the areas of positive and negative forecasts and draw recommendations to boost the growth of social resource.
- Konovalchikova E. Model of the best choice under incomplete information
We suggest two approaches to the construction of a twoperson game of the best choice under incomplete information with the priority of the first player and equal player weights. We consider a sequence of independent identically distributed random variables (xi,yi), i = 1...,n, which represent the quality of incoming objects. The first component is announced to players and the second component is hidden. Each player chooses an object based on the information available. A player wins when the sum of quality components of the object she chooses exceeds that of the object chosen by her opponent. Optimal threshold strategies are derived and compared for both approaches.
- Pavlov B., Volkovitskiy A. Airborne electromagnetc systems and improvement of their efficiency
Brief description of functioning principle of airborne electromagnetic (AEM) systems is given and purposes of these systems are described. Primary focus is made on technical and methodical aspects of signal measurements for low-frequency active sounding systems and on technology of their practical use. Principles of evaluation of AEM system measuring, mapping and operational efficiency are described and main approaches to improve efficiency are shown.
- Krupenev D., Perzhabinsky S., Agafonnikova E. Applying average dual estimations in algorithm for optimal reliability of electric power system
We suggest an algorithm to optimize reliability of an electric power system. The algorithm uses the averaged dual estimates of power generation and power flow constraints. Average values of dual estimates are found from the analysis of electric power system reliability. The developed algorithm is based on the enumeration of alternative scenarios of system evolution, while the analysis of average values of dual estimations helps to limit the number of scenarios considered. We also present the results of numeric simulations.
- Rezchikov A., Bogomolov A., Ivaschenko V., Filimonyuk L. Applying automation models to support and maintein safety in complex systems
We propose an approach to achieve and maintain safety of air transport systems. The approach is based on the coordination of system components’ interactions. We employ the cause-and-effect approach to build an automaton model of the dynamics of such systems. The model makes it possible to account for the synchronous interaction of system components. It can be used in training centers in the course of periodic ground training and professional development of aviation staff.
|
|
