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Method for calibrating and commissioning communication satellites using LEO satellites

  • US 10,581,515 B2
  • Filed: 08/21/2017
  • Issued: 03/03/2020
  • Est. Priority Date: 08/21/2016
  • Status: Active Grant
First Claim
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1. A system for calibrating an in-orbit satellite, the system comprising:

  • a Geosynchronous (GEO) satellite orbiting in a predetermined GEO orbit and having a predetermined transmission footprint, the GEO satellite is arranged to transmit a GEO satellite signal having predetermined transmitted GEO satellite signal parameters;

    a Low Earth Orbiting (LEO) satellite orbiting in a predetermined LEO orbit that crosses the predetermined transmission footprint of the GEO satellite, the LEO satellite is arranged to receive the GEO satellite signal when it crosses the predetermined transmission footprint of the GEO satellite at a predetermined LEO satellite location and to transmit a LEO satellite signal comprising the received GEO satellite signal having specified received GEO satellite signal parameters; and

    a control station arranged to receive the LEO satellite signal from the LEO satellite and comprising a processing unit arranged to;

    determine a GEO satellite location at which the GEO satellite signal is received by the LEO satellite;

    compare the predetermined transmitted GEO satellite signal parameters and the specified received GEO satellite signal parameters; and

    determine, based on at least one of the comparison thereof, the GEO location and the predetermined LEO location, a GEO satellite transmission performance at a specific geographical location on ground.

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