View source for A Risk-Aware Architecture for Resilient Spacecraft Operations

{{HTDB paper
| authors = Catharine L. R. McGhan, Richard M. Murray, Romain Serra, Michel D. Ingham, Masahiro Ono, Tara Estlin and Brian C. Williams
| title = A Risk-Aware Architecture for Resilient Spacecraft Operations
| source = Submitted, 2015 IEEE Aerospace Conference
| year = 2014
| type = Conference Paper
| funding = KISS RSS
| url = http://www.cds.caltech.edu/~murray/preprints/mcg+15-ieeeaero_s.pdf
| abstract = 
In this paper we discuss a resilient, risk-aware software architecture for onboard, real-time autonomous operations that is intended to robustly handle uncertainty in space- craft behavior within hazardous and unconstrained environ- ments, without unnecessarily increasing complexity. This architecture, the Resilient Spacecraft Executive (RSE), serves three main functions: (1) adapting to component failures to allow graceful degradation, (2) accommodating environments, science observations, and spacecraft capabilities that are not fully known in advance, and (3) making risk-aware decisions without waiting for slow ground-based reactions. This RSE is made up of four main parts: deliberative, habitual, and reflexive layers, and a state estimator that interfaces with all three. We use a risk-aware goal-directed executive within the deliberative layer to perform risk-informed planning, to satisfy the mission goals (specified by mission control) within the specified priorities and constraints. Other state-of-the-art algorithms to be integrated into the RSE include correct-by-construction control synthesis and model-based estimation and diagnosis. We demonstrate the feasibility of the architecture in a simple implementation of the RSE for a simulated Mars rover scenario.
| flags = 
| filetype = PDF
| filesize = 8.7M
| tag = mcg+15-ieeeaero
| id = 2014l
}}