Small-Satellite Synthetic Aperture Radar for Continuous Global Biospheric Monitoring: A Review
| Autor: | Sivagaminathan Balasubramanian, Olivier de Weck, Sung Wook Paek, Sangtae Kim |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Synthetic aperture radar
Earth observation satellite constellation 010504 meteorology & atmospheric sciences biospheric monitoring Science Perspective (graphical) 0211 other engineering and technologies Satellite constellation Biosphere small satellite 02 engineering and technology 01 natural sciences law.invention law General Earth and Planetary Sciences Environmental science Satellite Radar 021101 geological & geomatics engineering 0105 earth and related environmental sciences Remote sensing Constellation synthetic aperture radar |
| Zdroj: | Remote Sensing, Vol 12, Iss 2546, p 2546 (2020) |
| ISSN: | 2072-4292 |
| Popis: | Space-based radar sensors have transformed Earth observation since their first use by Seasat in 1978. Radar instruments are less affected by daylight or weather conditions than optical counterparts, suitable for continually monitoring the global biosphere. The current trends in synthetic aperture radar (SAR) platform design are distinct from traditional approaches in that miniaturized satellites carrying SAR are launched in multiples to form a SAR constellation. A systems engineering perspective is presented in this paper to track the transitioning of space-based SAR platforms from large satellites to small satellites. Technological advances therein are analyzed in terms of subsystem components, standalone satellites, and satellite constellations. The availability of commercial satellite constellations, ground stations, and launch services together enable real-time SAR observations with unprecedented details, which will help reveal the global biomass and their changes owing to anthropogenic drivers. The possible roles of small satellites in global biospheric monitoring and the subsequent research areas are also discussed. |
| Databáze: | OpenAIRE |
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