Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986asdy.conf..929f&link_type=abstract
IN: Astrodynamics 1985; Proceedings of the Conference, Vail, CO, August 12-15, 1985. Part 2 (A86-43201 20-12). San Diego, CA, Un
Astronomy and Astrophysics
Astronomy
Ampte (Satellites), Elliptical Orbits, Minimum Variance Orbit Determination, Orbital Position Estimation, Satellite Tracking, Electromagnetic Noise, Quasars, Satellite Doppler Positioning
Scientific paper
Delta-DOR acquisition strategies are designed for use in determining highly elliptical earth orbits. The requirements for a possible flight demonstration are evaluated for the Charged Composition Explorer spacecraft of the Active Magnetospheric Particle Tracer Explorers. The best-performing strategy uses data spanning the view periods of two orthogonal baselines near the same orbit periapse. The rapidly changing viewing geometry yields both angular position and velocity information, but each observation may require a different reference quasar. The Delta-DOR data noise is highly dependent on acquisition geometry, varying several orders of magnitude across the baseline view periods. Strategies are selected to minimize the measurement noise predicted by a theoretical model. Although the CCE transponder is limited by S-band and a small bandwidth, the addition of Delta-DOR to coherent Doppler and range improves the one-sigma apogee position accuracy by more than an order of magnitude. Additional Delta-DOR accuracy improvements possible using dual-frequency (S/X) calibration, increased spanned bandwidth, and water-vapor radiometry are presented for comparison. With these benefits, the residual Delta-DOR data noise is primarily due to quasar position uncertainties.
No associations
LandOfFree
Designing Delta-DOR acquisition strategies to determine highly elliptical earth orbits does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Designing Delta-DOR acquisition strategies to determine highly elliptical earth orbits, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Designing Delta-DOR acquisition strategies to determine highly elliptical earth orbits will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-892120