Clutter simulation and characterisation of space-borne GEO-LEO radar

• Main Authors: Huihui Ding, Shunsheng Zhang, Wen-Qin Wang, Bingji Zhao
• Format: Article
• Language: English
• Published: Wiley 2019-10-01
• Series: The Journal of Engineering
• Subjects: radar clutter; spaceborne radar; doppler radar; radar signal processing; target tracking; artificial satellites; ground-moving targets indication; doppler trajectory distance dependence; clutter simulation; space-borne geo-leo space-time two-dimensional model; space-borne geosynchronous satellite-low orbiting satellite; space-borne bistatic radar; space-borne geo-leo radar
• Online Access: https://digital-library.theiet.org/content/journals/10.1049/joe.2019.0404

Compared with ground radars, space-borne bistatic radar shows great advantages in higher signal-to-noise ratio (SNR) and robuster security. Firstly, this study establishes space-borne geosynchronous satellite-low orbiting satellite (GEO-LEO) space–time two-dimensional model considering the influence of the rotation of the earth together with the curvature of the earth surface. Then the Doppler trajectory distance dependence of the clutter angle is analysed. Finally, the characteristics of the space-borne GEO-LEO model are proved to be beneficial to clutter suppression and ground-moving targets indication. Simulation results show that the space-borne GEO-LEO model has good performance.