This paper presents trajectory reconstruction of the ST-9 sounding rocket experiment using the onboard IMU data and descent imagery. The raw IMU accelerometer measurements are first converted into inertial acceleration and then used in trajectory integration. The descent images are pre-processed using a map-matching algorithm and unique landmarks for each image are created. Using the converted IMU data and descent images, the result from dead-reckoning and the kinematic-fix approaches are first compared with the GPS measurements. Then, both the IMU data and landmarks are processed together using a batch least-squares filter and the position, velocity, stochastic acceleration, and camera orientation of each image are estimated. The reconstructed trajectory is compared with the GPS data and the corresponding formal uncertainties are presented. The result shows that IMU data and descent images processed with a batch filter algorithm provide the trajectory accuracy required for pin-point landing.
Trajectory Reconstruction of the ST-9 Sounding Rocket Experiment Using IMU and Landmark Data
AAS/AIAA Astrodynamics Specialist Conference ; 2009 ; Pittsburgh, PA, United States
2009-08-09
Conference paper
No indication
English
Trajectory Reconstruction of Sounding Rocket Using Inertial Measurement Unit and Landmark Data
Online Contents | 2010
|British Library Conference Proceedings | 2010
|CODAG sounding rocket experiment
Emerald Group Publishing | 1999