Accession Number:

ADA133895

Title:

A General Measurement Design Philosophy for the Kalman Filter Estimation with Special Application Given to the Imaging Radar Autofocus Update

Descriptive Note:

Final rept. 1 May 1982-30 Apr 1983

Corporate Author:

WRIGHT STATE UNIV DAYTON OH DEPT OF SYSTEM ENGINEERING

Personal Author(s):

Report Date:

1983-01-01

Pagination or Media Count:

90.0

Abstract:

The value of an Autofocus update of an INS is investigated. Three cases are considered 1 centripedal acceleration only 2 centripedal and line-of-sight acceleration and 3 centripedal and line-of-sight acceleration as well as attitude error effects. The extended kalman filter configuration was employed using the versatile SOFE Monte Carlo simulation program. Measurement matrices were defined for each of the three cases. Simulation results indicated an observability problem for Case 1. Suggestion for further work was included. For the centripedal acceleration case only, the Autofocus measurement proved to be a useful measurement when supplemented by additional measurements. In particular, a Compass, an Autofocus, and doppler velocity update realize better than a 94 update quality. Without the Autofocus, the quality suffers greatly. Author

Subject Categories:

  • Numerical Mathematics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE