37th Annual AAS Guidance and Control Conference, Breckenridge, CO
This work analyzes the ability to estimate and control the relative position and velocity of a Small Satellite with respect to a target vehicle using a single optical camera. Although the target range is generally unobservable when using anglesonly measurements, relative position/velocity observability can be achieved when the SmallSat is slowly rotating and the camera is offset from the center of gravity. The sensitivity of the navigation errors and trajectory dispersions to several simulation parameters is discussed, including SmallSat camera offset, spin rate, and range to target. Also included in the analysis is the effect of common sensor errors (e.g. camera and gyro bias/noise), external disturbances, and initial conditions. Future efforts are mentioned to extend the analysis to cooperative/uncooperative targets and to increase analysis efficiency through Linear Covariance analysis.
Christensen, Randy and Geller, David, "Spin-Assisted Angles-Only Navigation and Control For SmallSats" (2014). Space Dynamics Lab Publications. Paper 30.