High-resolution geocoded image synthesis with taking into account the whole set of perturbation factors in Spotlight Mode in airborne and spaceborne SAR
- 1 Ph.D. (Eng.), Leading Research Scientist, JSC «Concern «VEGA»
Abstract
New high-precision algorithm of sub-meter resolution SAR image synthesis in Spotlight mode is considered. This algorithm is being very close quasi-classic approximation of well known very exact and very slow Back Projection Algorithm (BPA). The new algorithm is considerably (200-500 times) faster then BPA.
The algorithm takes in account the whole set of perturbation factors - cur-rent ballistic data and look parameters in high orders, ray aiming error and ray diagram form, scene relief - according to the digital Earth map, quasi-classic hologram spectrum calculation method non-exactness.
The output image is being written in horizontal scene coordinates - not in traditional along-way slant coordinates azimuth and range. So the SAR image geo-coding procedure is not necessary.
This algorithm is appropriate both for the spaceborne and the airborne SAR.
How to cite
Лиханский С.Г. Синтез геокодированного изображения высокого разрешения с учетом полного набора искажающих факторов в прожекторном режиме в РСА воздушного и космического базирования // Успехи современной радиоэлектроники. 2015. № 5. С. 88–96.
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