Popis: |
In a study for the European Space Agency we explored architectures and terminal configurations for optical cross-links within fleets of microsatellites and assessed the applicability of available technologies. As an example we cover a scenario where four microsatellites form a planar, square formation of 1 km side length, where the data rate is 100 kbit/s, and where an active doublepass lidar between each of the satellites provides a ranging accuracy of better than 10 m. The terminals operate at a wavelength of 980 nm, the receive apertures have a diameter of 5 mm, and the size, mass, and prime power requirement of one terminal is estimated to be 60x80x70 mm 3 , 900 g, and 5 W, respectively. |