Title :
Transfer orbit stage gyrocompass alignment algorithm twist and sway environment for Mar´s Observer mission on commercial Titan
Author :
Reddy, Narotham S. ; Murray, Jonathan
Author_Institution :
Martin Marietta Astronaut. Group, Denver, CO, USA
Abstract :
The problems presented by the launch of a booster vehicle with a strapdown system on an expandable launch vehicle are addressed. These include the Earth motion by the wind-induced twist and sway motion at the launch pad, vibration-induced motion, and various sensor errors, as well as the limited memory and processing power of the flight computer. A robust numeric gyrocompass alignment algorithm is presented, and its performance in this environment is examined.<>
Keywords :
aerospace computing; gyroscopes; inertial navigation; Earth motion; Mar´s Observer mission; Titan; booster vehicle; expandable launch vehicle; flight computer; numeric gyrocompass alignment algorithm; sensor errors; strapdown system; sway environment; sway motion; transfer orbit stage gyrocompass; truth model; vibration-induced motion; wind-induced twist; Computer errors; Earth; Gravity; Mars; Navigation; Power generation; Reluctance motors; Satellites; Space shuttles; Space vehicles;
Journal_Title :
Aerospace and Electronic Systems Magazine, IEEE
