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The method of geo-referencing satellite- and aerial imagery using reference points, linear and non-linear features, and segments of geodetic tracks as elements of a plan-altitude basis is discussed in this article. The method can be used for any mathematical model of satellite- and aerial imagery. The parametric description of the features, that can be used for the geo-referencing and various mathematical models of the above-mentioned imagery are presented. The mathematical formulation of the matter of satellite and aerial imagery geo-referencing using terrain objects and reference points is presented. A list of linear and non-linear features that can be included in a high-raised basis along with reference points is made. A generalized algorithm for geo-referencing satellite and aerial imagery using reference points and terrain features is given. The algorithm includes making a nonlinear system of equations for reference points and items, linearizing the system and solving by the sequential approximation technique according to the least squares method. An example of clarifying the satellite RPC-model and aerial imagery using reference points, linear and non-linear features is given. The advantages of the proposed method of using features created according to the measurements on satellite and aerial imagery compared with method, when the model of the feature is created according to the measurements on the ground are described.

Исследован вопрос о необходимой точности измерений пиксельных координат изображений опорных точек на примере решения задачи калибровки съемочной системы КА ДЗЗ Ресурс-П. Исследования выполнены путем компьютерного моделирования реального процесса калибровки съемочной системы КА ДЗЗ Ресурс-П. Полученные результаты показывают необоснованность завышенных требований к точности измерений на снимках, что часто вызывает излишнее усложнение технологии и программного обеспечения.

The characteristics of BaF2 barium fluoride crystals, grown from the materials provided by manufacturers, were investigated. The parameters which are important for application of the crystals in low-energy physics, electromagnetic high-energy calorimeters for detecting γ rays and electrons, and measurement of energy in the maximum possible range from tens of MeV up to hundreds of GeV, as well as applications in medicine, instrument building, geology, and so on, were measured. 7 figures, 3 tables, 13 references.

The properties of cerium trifluoride scintillating crystals, grown in Russia using the Stockbarger's method, were investigated. The characteristics of CeF3, PbWO4, Bi4Ge3O12, and BaF2 crystals were compared for use in electromagnetic calorimeters to detect electrons and γ-rays of medium and high energies.