Reduction of the acquisition and tracking thresholds for spreading codes

Centre National d'Etudes Spatiales CNES - 10/19/2016


Reduction of the spectrum spreading code acquisition and tracking thresholds received in orbit by a satellite receiver accessing an orbital navigator, such as a Kalman filter which can be installed directly inside the receiver or ECU of the carrier satellite. The receiver is installed with a code loop, responsible for the acquisition or tracking of pseudo-random codes. The orbital navigator is the source of the precise accuracy of the satellite receiver speed and enables the acquisition and tracking threshold to be reduced significantly.


Instant installation and benefits - Compatible with existing and future receivers: GPS, GLONASS, Globalstar, Galileo, COMPASS, Egnos, GNSS and IRNSS - Compatible with spread spectrum remote control receivers used in ground stations or relay satellites - No modification to equipment is required.


Improved acquisition of spreading codes - Reduction of the spreading code acquisition and tracking threshold by a minimum factor of 100 - Reduced acquisition time - Improved robustness of geostationary satellites and satellites in survival mode Compatible with all types of satellite - Proven technology on more than one hundred orbiting satellites - Compatible with LEO, MEO, GEO or HEO orbiting satellites.

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