Mathematical Model of Forming Topographic Interferogram of the Earth’s Surface by Survey Data of Space Radar with Antenna Synthesized Aperture

The mathematical model is considered for forming topographic interferogram of the Earth's surface by survey data of space radar with antenna synthesized aperture obtained from the near-Earth's orbit. Relations are derived that connect local inclination-angles of the topographic relief with the local inclination-angles of the phase relief on the interferogram. The relations are required for improvement of accuracy of construction of a digital model of the Earth's relief using the method of space radar topographic interferometry.