Accession Number:

ADA055188

Title:

Application of a Maximum Likelihood Parameter Estimator to an Advanced Missile Guidance and Control System.

Descriptive Note:

Master's thesis,

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING

Personal Author(s):

Report Date:

1977-12-01

Pagination or Media Count:

241.0

Abstract:

The problem of parameter estimation using tracking information is examined. Two models are developed and used to estimate the misalignment angles of the inertial system of a missile after its launch. The estimation is based on maximum likelihood concepts. The amount of information extracted from the tracking measurements and the missile specific forces measurements is analysed. A feasibility study of the two models is conducted. The second model uses the aerodynamic model of the missile in order to enhance its estimation ability. Doing this, it incorporates more non-linearities than the first model. These severe non-linearities were found to offset the advantage it had in terms of information gathering. The first model is much simpler in its concept. Yet, it is still able to gather the information needed and its performance is very comparable to the one of the second model. The simplicity and linearity of the first model make it especially attractive. Author

Subject Categories:

  • Theoretical Mathematics
  • Guided Missile Dynamics, Configurations and Control Surfaces
  • Air- and Space-Launched Guided Missiles

Distribution Statement:

APPROVED FOR PUBLIC RELEASE