Zhurnal Radioelektroniki - Journal of Radio Electronics. eISSN 1684-1719. 2022. №2
Contents

Full text in Russian (pdf)

DOI: https://doi.org/10.30898/1684-1719.2022.2.9

IMPROVING THE CHARACTERISTICS OF SPACE SAR

IN HIGH RESOLUTION MODES

S.L. Vnotchenko, M.V. Shchetinin

Research Institute of Precision Instruments
127490, Moscow, st. Decembrists, possession 51

The paper was received February 03, 2022

Abstract. The methods of increasing the size of the radar image obtained by space radars with synthesized aperture in high-resolution mode are analyzed. The image size increase is achieved due to the extended scanning of the antenna beam in the azimuthal plane. The basis of the considered methods is the classical searchlight mode. The modes of composite (multi-frame) searchlight shooting and sliding searchlight shooting are compared. The dependences of azimuthal resolution and frame size on the size of the scanning sector are estimated. Numerical examples are based on the parameters of COSMO-SkyMed and TerraSAR-X radars. A list of the main ways to increase scanning is provided. A brief description of the Staring Spotlight mode is given, as an example, which allows to significantly increase the detail and quality of images.

Key words: space borne synthetic aperture radar, high-resolution images, spotlight mode, multi-frame mode, sliding spotlight mode.

Corresponding author: Shchetinin Mikhail Vasil’evich, m.v.shchetinin@mail.ru

References

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For citation:

Vnotchenko S.L., Shchetinin M.V. Improvement of characteristics of space SAR in high resolution modes. Zhurnal radioelektroniki [Journal of Radio Electronics] [online]. 2022. №2. https://doi.org/10.30898/1684-1719.2022.2.9