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Direct-to-Earth communications with Mars Science Laboratory during entry, descent, and landing

Show simple item record Soriano, Melissa Finley, Susan Finley, Susan Schratz, Brian Ilott, Peter Mukai, Ryan Estabrook, Polly Oudrhiri, Kamal Kahan, Daniel Satorius, Edgar 2014-01-21T18:08:04Z 2014-01-21T18:08:04Z 2013-03-04
dc.identifier.citation 2013 IEEE Aerospace Conference, Big Sky, Montana, March 2-9 , 2013 en_US
dc.identifier.clearanceno 13-0467
dc.description.abstract Mars Science Laboratory (MSL) undergoes extreme heating and acceleration during Entry, Descent, and Landing (EDL) on Mars. Unknown dynamics lead to large Doppler shifts, making communication challenging. During EDL, a special form of Multiple Frequency Shift Keying (MFSK) communication is used for Direct-To-Earth (DTE) communication. The X-band signal is received by the Deep Space Network (DSN) at the Canberra Deep Space Communication complex, then down-converted, digitized, and recorded by open-loop Radio Science Receivers (RSR), and decoded in real-time by the EDL Data Analysis (EDA) System. The EDA uses lock states with configurable Fast Fourier Transforms to acquire and track the signal. RSR configuration and channel allocation is shown. Testing prior to EDL is discussed including software simulations, test bed runs with MSL flight hardware, and the in-flight end-to-end test. EDA configuration parameters and signal dynamics during pre-entry, entry, and parachute deployment are analyzed. RSR and EDA performance during MSL EDL is evaluated, including performance using a single 70-meter DSN antenna and an array of two 34-meter DSN antennas as a back up to the 70-meter antenna. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2013 en_US
dc.subject Mars Science Laboratory (MSL) en_US
dc.subject Entry, Descent, and Landing (EDL) en_US
dc.subject Mars telecommunications en_US
dc.subject EDL Data Analysis (EDA) en_US
dc.subject Direct-to-Earth (DTE) en_US
dc.title Direct-to-Earth communications with Mars Science Laboratory during entry, descent, and landing en_US
dc.type Preprint en_US

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