Ultra-High Performance C & L-Band Radiometer System for Future Spaceborne Ocean Missions

Niels Skou, Sten Schmidl Søbjærg, Steen Savstrup Kristensen, Cecilia Cappellin, Knud Pontoppidan, Jakob Rosenkrantz de Lasson, Marianna V. Ivashina, Oleg A. Iupikov

Research output: Contribution to journalJournal articleResearchpeer-review


A next-generation real-aperture spaceborne radiometer system for high-quality ocean measurements is discussed. Instead of illuminating the antenna reflector by a classical feed array of horn antennas in a one-feed-per-beam configuration, a multi-feed-per-beam configuration is chosen. Each antenna beam is thus created by adding the outputs from many small antenna elements in the feed array, thus providing an antenna beam of unsurpassed quality. This solves the classical polarization purity and land/sea contamination issues. The concept requires many microwave receivers and fast analog-to-digital converters as well as fast digital signal processing onboard the satellite. This is discussed, and resource budgets, especially concerning power, are provided.
Original languageEnglish
JournalI E E E Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Issue number6
Pages (from-to)1670 - 1678
Publication statusPublished - 2019


  • Microwave
  • Radiometer
  • Focal plane array
  • Receiver

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