Launch Detection Satellite System Engineering Error Analysis,
Abstract
An orbiting detector of Infrared (IR) energy may be used to detect the rocket plumes generated by ballistic missiles during the powered segment of their trajectory. By measuring angular directions of the detections over several observations, the trajectory properties, launch location, and impact area may be estimated using a nonlinear least squares iteration procedure. Observations from two or more sensors may be combined to form stereoscopic lines-of-sight (LOS) increasing the accuracy of the algorithm. Presented in this paper is a computer model of an estimation algorithm which determines what parameter, or combination of parameters, will have a significant effect on the error of the tactical parameter estimation. This model, which is coded in MAThABTh, generates observation data and then, using the data, produces an estimate of the tactical parameters, i.e., the time, position, and heading at launch and burnout, and an impact time and position. The effects of time errors, LOS measurement errors, and satellite position errors on the estimation accuracy, determined using analytical and Monte Carlo simulation techniques, are presented.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1996
- Accession Number
- ADA318706
Entities
People
- K. T. Alfriend
- R. Beaulieu
- T. Jerardi
Organizations
- Naval Postgraduate School