Potential of Space Means for Radio Spectrum Monitoring
- Paper number
IAC-05-B3.4.03
- Author
Mr. Jean-Paul Aguttes, Centre National d'Etudes Spatiales (CNES), France
- Coauthor
Mr. Frederic Couturier, France
- Coauthor
Mr. Thierry Amiot, Centre National d'Etudes Spatiales (CNES), France
- Year
2005
- Abstract
In cooperation with the French National Frequency Agency (ANFR), CNES has studied the potential of satellites for monitoring the Radio Frequency Spectrum. Among the various needs, a key target has first been identified taking account of the inherent advantages and drawbacks of space (large coverage and low geometrical discrimination) and of the current terrestrial means. The study focused on “Detection and localization of up links of GEO space systems (5 GHz –30 GHz) with two mission levels: The highest one is to be able to solve the jamming (seek pirate or defective station), and a less challenging one is to provide statistical analysis. Different system scenarios have been identified and compared under technical and cost viewpoints. These scenarios vary according to key parameters either belonging to: - Mission domain: level (Jamming Solving or/and statistical monitoring), ground coverage (Europe, World), GEO orbital arc extent (over Europe or whole arc), localization performance (10 to 50 km), revisit delay (< 10 days), local time variation - Technical domain: orbit of the satellite (GEO Synchronous or LEO), localization technique (Direct localization within a single sharp beam, Phase or Amplitude difference between several antennas or satellites), way to intercept the transmitter (through its main lobe or through the side lobes), the way to scan the ground (full satellite scan, mechanical or electronic scan of the antenna(s)), etc… The main conclusions of the study are that: - The LEO scenarios cannot compete against the GEO Synchronous because they need a much larger number of satellites (unless the revisit requirement is drastically reduced) - The Jamming Solving mission appears very critical with space means because of the inherently limited duration of transmitter interception (few minutes per day with the best scenario). - The “statistical” mission is feasible according to some new developments, but both the induced costs and the offered services plead for an international cooperation The participation of the main author in the 2005 IAC has been budgeted by CNES.
- Abstract document
- Manuscript document
IAC-05-B3.4.03.pdf (🔒 authorized access only).
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