Masters Theses


"When designing feedback control systems, there is often a need for estimation methods that provide system information that is not readily available via sensors placed within the system. In many cases a sensor that measures a particular system state either does not exist or is prohibitively expensive. In addition, all realistic systems contain some degree of nonlinearity. This thesis focuses on two such cases: missile guidance with bearings-only measurements and GPS satellite orbit determination. In each case, a new nonlinear filter, the [theta]-D method, is used and evaluated for its performance in providing the necessary estimation. To aid the filter in the bearings-only application, a guidance law is formulated that assists the filter in estimating the target location despite the lack of range measurement. An implementation procedure, called the Staggered Filter Concept, is also presented for implementing a continuous filter, such as the [theta]-D filter, with measurements taken at discrete intervals. This procedure is used to implement the orbit determination algorithm on the Missouri S&T Satellite Team M-SAT mission"--Abstract, page iii.


Balakrishnan, S. N.
Pernicka, Hank

Committee Member(s)

Leitner, J.
Sarangapani, Jagannathan, 1965-


Mechanical and Aerospace Engineering

Degree Name

M.S. in Aerospace Engineering


United States. Missile Defense Agency


Missouri University of Science and Technology

Publication Date

Spring 2010


x, 78 pages

Note about bibliography

Includes bibliographical references (page 52).


© 2010 Michael William Dancer, All rights reserved.

Document Type

Thesis - Open Access

File Type




Subject Headings

Feedback control systems -- Design and construction
Filters (Mathematics)
Guided missiles -- Control systems
Orbit determination

Thesis Number

T 9605

Print OCLC #


Electronic OCLC #