Accession Number:

ADA063704

Title:

A Comparative Study of Fire Control Target State Estimators.

Descriptive Note:

Final rept. Jul-Aug 78,

Corporate Author:

NAVAL ACADEMY ANNAPOLIS MD DIV OF ENGINEERING AND WEAPONS

Personal Author(s):

• DeMoyer,R. , Jr

Report Date:

1978-11-01

Pagination or Media Count:

134.0

Abstract:

Application of the Kalman Filter to the fire control problem is considered. While the theory and practice in this field are well developed, conflicting claims have been made regarding the relative advantages of statistical decoupling in fixed inertial coordinates as compared to rotating non-inertial coordinates. An error analysis model, consisting of a sub-optimal filter and truth model, shows the error added, in each of three formulations, due to several sub-optimal approximations. Plots, including error ellipses, help to provide an intuitive feel for the results of decoupling. Author

Descriptors:

• *ANTIAIRCRAFT FIRE CONTROL SYSTEMS
• *FIRE CONTROL COMPUTERS
• MATHEMATICAL MODELS
• ALGORITHMS
• LINE OF SIGHT
• KALMAN FILTERING
• ERROR ANALYSIS
• ERRORS
• STATISTICAL PROCESSES
• TARGET POSITION INDICATORS
• INERTIAL MEASUREMENT UNITS
• MARKOV PROCESSES
• HIT PROBABILITIES
• DECOUPLING(INTERACTION)
• TARGET LEAD INDICATORS

Subject Categories:

• Statistics and Probability
• Fire Control and Bombing Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE