AAWSAP DIRD, Cockpits in the Era of Breakthrough Flight, November 2010

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UNCLASSIFIED/ fFOR OFFI@IAI:: HSE OPtl::Y
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Navigational information sources:
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Position:
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Master reference taken relative to starting position (Sun-Earth system).
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Current location taken from the following:
o Star tracker:
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Modified to handle 3D database of star locations for deep-space
motion (yet less than 100-light-year radius around the Sun).
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Predictive trajectories (to extrapolate positions for FTL travel).
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Note: Can only take star tracker readings at sublight speed.
o First integration on measured velocity and relative to point of
departure.
o Second integration on measured accelerations since point of departure.
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Velocity:
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Directly measured from cosmic microwave background Doppler shifts,
where velocity is relative to the mean rest frame of the universe.
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First integration on measured accelerations since point of departure.
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Accelerations:
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Linear:
o Accelerometers with corrections calculated based on the influence of
the propulsion methods that affect gravitational and inertial forces.
o Differentiation of velocity changes as measured using the cosmic
microwave background.
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Rotational:
o Gyros (e.g., ring laser gyros) with correction inputs from the
propulsion methods that affect gravitational and inertial forces.
o Orientation as inferred from star tracker measurements.
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