Accession Number:

ADA022632

Title:

Passive Range Estimation for Antishipping Missiles

Descriptive Note:

Final rept. 1 Feb 1973-31 Dec 1975

Corporate Author:

ANALYTIC SCIENCES CORP READING MA

Personal Author(s):

Report Date:

1975-12-01

Pagination or Media Count:

72.0

Abstract:

This report deals with several techniques for passive ranging, i.e., the estimation of target range from noisy measurements of bearing or line-of- sight angle alone. The type of engagement treated in this investigation involves a maneuvering surface target and a missile without an altimeter. The missile approaches the target along a trajectory that is characterized by a low- altitude cruise phase followed by a terminal pitch-up maneuver. Several modified Kalman filter-like algorithms are applied to this nonlinear filtering problem these include the extended Kalman filter based on small-signal linearization and several quasi-linear Kalman filters based on random-input describing function theory. Performance comparisons are obtained by applying the filters to a number of trajectories.

Subject Categories:

  • Guided Missile Trajectories, Accuracy and Ballistics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE