employee from 01.01.1998 to 01.01.2025
g Sankt-Peterburg, Russian Federation
UDC 528.8.04
CSCSTI 89.57
Development of modern space multi-mode Earth observation systems necessitates improvement of planning methods for space optical-electronic and radar survey. Requirements for survey system pointing accuracy are increasing for extended, curved, and areal regions, yet issues related to the effective description ofinitial data for defining observation objects remain virtually unexplored. This article analyzes and develops computational models for characterizing the geometric features of objects in survey planning tasks for modern Earth remote sensing spacecraft. The article examines the key characteristics of observation objects in planning tasks, as well as factors influencing the accuracy of the obtained results. The article demonstrates that determining the geometric dimensions of an object depends on the projection used to represent the initial data. To obtain accurate results and reduce calculation time, it is proposed to use a local oblique cylindrical projection with parameters for each object. A method for calculating projection parameters and the basic relationships for the calculations are proposed. Methods for calculating the geometric center of an object, the orientation angle of a vector polygon, the geometric dimensions of an object, and a method for calculating descriptive bounding frames are proposed. The results can be used for planning surveys in modern observation modes with high-resolution equipment, over large areas, for long-term missions, and for planning the use of satellite constellations with implementation in modern geographic information systems.
remote sensing, survey planning, observation object, survey modes, polygon properties
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