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Regenerative pseudo-noise ranging for deep space applications

Show simple item record Berner, Jeff B. Kinma, Peter W. Layland, James M. 2006-06-06T22:25:44Z 2006-06-06T22:25:44Z 2001-10-29
dc.identifier.citation ESA 3rd Workshop on Tracking, Telemetry and Command Systems for Space Applications, Noordwijk, the Netherlands, October 29, 2001. en
dc.identifier.clearanceno 01-1844
dc.description.abstract Currently, ranging for deep space missions is performed by turning around the uplink ranging modulation and remodulating it onto the downlink carrier. This method results in about 1.5 MHz of noise also being modulated onto the downlink, severely degrading the received ranging SNR on the ground. This degradation must be compensated for by either increasing the integration time of the received signal, which increases the length of time for the track, or increasing the downlink ranging signal’s modulation index, which decreases the power available for the telemetry modulation. A method for the regeneration on the spacecraft of a pseudo noise (PN) ranging signal has been developed. This method allows for an increase of up to 30dB in the received downlink ranging power. The increased power can be used to decrease the measurement uncertainty, reduce the time of the measurement, or increase the power allocated to the downlink telemetry. This system was implemented in the Spacecraft Transponding Modem that was developed by JPL for NASA. en
dc.description.sponsorship NASA/JPL en
dc.format.extent 1646869 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2001. en
dc.subject PN ranging en
dc.subject regenerative ranging en
dc.subject deep space ranging en
dc.subject pseudo-noise ranging en
dc.title Regenerative pseudo-noise ranging for deep space applications en
dc.type Preprint en

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