ЗАСТОСУВАННЯ РАДАРНОЇ ІНТЕРФЕРОМЕТРІЇДЛЯ ПОБУДОВИЦИФРОВИХ МОДЕЛЕЙ РЕЛЬЄФУ

Abstract

Advanced experience in preparing and conducting military operations has shown that terrain is one of the most crucial elements in any map, as it determines the characteristics of the landscape of a specific area. Digital Elevation Models are used in updating digital topographic maps and plans of various scales, conducting various types of engineering surveys, and geological, biological, and geographical research. This article examines existing models and methods for constructing digital elevation models for the purpose of their comparative analysis based on the integration of open, publicly available sources of information. The approaches to building digital elevation models are described, and the information support for their creation is considered. The possibility of using different data sources intended for creating digital elevation model is demonstrated: for land management tasks modeling, hydrological network modeling, analysis of radio tower coverage zones, construction task modeling, and modeling flood and inundation zones. By improving digital elevation model, it is possible to develop new approaches for their creation or integrate existing ones. At the current stage of Ukraine's Armed Forces development, it is advisable to use radar interferometry as a relatively fast and accurate method for constructing digital elevation model. Interferometry is a technology for extracting elevation information from the phase of two images. Interferometric processing is carried out based on the use of radar data. The method assumes that the same area should be imaged with a displacement in space of the radar antenna receiver. Thus, by applying radar interferometry, it is possible to rapidly develop new approaches for creating digital elevation model or combining multiple ones.