Autonomous Navigation Technology. Phase IA Study.
Abstract
The program objective has been to provide the design of a space navigation system for unmanned earth satellites. The system is required to provide accurate determination of the ephemeris state and to be autonomous. The equations of motion of the satellite are integrated using a detailed model of the earth's gravitational field. The effects of residual errors in the gravity field, unmodeled forces, and uncertainties in initial conditions are reduced by measurements. The selected approach employs two down sensors to track unidentified earth landmarks surface; this unknown tracking method obtains to line of sight angular velocity (V/h). The Phase I objective was to design and test an engineering model down sensor, a strapdown telescope. The measurement is obtained by digital correlation of signals from photodetector arrays in its image plane.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1975
- Accession Number
- ADA008649
Entities
People
- D. C. Paulson
Organizations
- Honeywell International, Inc.