Cold Atom Navigation Sensors - Stanford Center for Position ...

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Interferometer outputs and noise model: Previous: Outputs parametrically describe an ellipse. Use non-optimal ellipse specific fitting to extract relative l i phase h (M (McGuirk, G i k O Opt. Lett., L 2001). Optimal phase retrieval New: Use Bayesian estimation to optimally determine relative phase (Stockton (Stockton, submitted). submitted)
Optimal Bayesian Phase Estimation vs. Ellipse Fitting Numerical simulation to compare per<strong>for</strong>mance of Bayesian vs. ellipse specific methods <strong>for</strong> white white, noncommon, phase noise. Ellipse error Bayesian method integrates as t-1/2 without systematic error offset Ellipse noise Currently Cu e t y investigating est gat g computationally efficient Bayesian noise implementations. Suppresses systematic offsets Bayesian error i in phase h determination d t i ti
Page 1 and 2: Cold Atom Navigation Sensors Atom I
Page 3 and 4: Next generation integrated INS/GPS
Page 5 and 6: Physics of space-time • GP-B - gr
Page 7 and 8: de Broglie wave sensors Gravity/Acc
Page 9 and 10: Enabling Science: Laser Cooling Las
Page 11 and 12: Light-puse AI accelerometer charact
Page 13 and 14: Gravity gradiometry and high accura
Page 15 and 16: Measurement of Newton’s Constant
Page 17 and 18: New instrument (2007) Currently ach
Page 19: Navigation performance Determine ge
Page 23 and 24: CCo-falling f lli 85 85Rb Rb and d
Page 25 and 26: Space-based detectors (blue and red
Page 27 and 28: Future technology: Quantum Metrolog
Page 29: Thanks Current team: - Boris Dubets

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