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- W1001505674 abstract "The attractiveness of flying several Synthetic Aperture Radar (SAR) satellites in a semi-active configuration has been proposed by several studies. The closest implementation of such a mission scenario is exemplified by the current TerraSAR-X and Tandem-X mission, where both spacecraft are identical monostatic platforms capable of operating in various modes. The Bistatic operation mode of the Tandem-X mission is a basic form of the semi-active Multi-static operation mode where one satellite serves as a transmitter while the other records the scattered signals simultaneously. The use of a typical monostatic SAR spacecraft operating intandem with several receiver only spacecraft is a semi-active mode of operation. This paper examines the capabilities of implementing a constellation of S-band spaceborne SAR platform for alongtrack interferometry over the Equatorial Region for velocity measurement with particular focus on ship detection. The proposed orbit for the mission is a low inclined circular low Earth orbit, which ensures high revisit time, quick coverage and high data throughput. The pendulum orbital configuration is adopted to maintain the relative distance between successive SAR platforms. The conditions and constraints necessary to achieve the orbit geometry required to conduct alongtrack interferometry are defined. The alongtrack separation between platforms necessary to measure specified ship velocity is also discussed. Finally an error budget estimate of the measure radial velocity is provided." @default.
- W1001505674 created "2016-06-24" @default.
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- W1001505674 date "2014-01-01" @default.
- W1001505674 modified "2023-09-23" @default.
- W1001505674 title "Capabilities and Performance of S-band Semi-active Multi-static Small SAR Constellation for the Equatorial Region" @default.
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