Smoothing 3-D data for torpedo paths
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Authors
Tysver, J. B.
Subjects
Torpedo path, Track smoothing, Least sauares
Advisors
Date of Issue
1978-05
Date
1978-05
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
The general track smoothing program (MASM3DRJ) in use at NUWES uses linear, parabolic, and logarithmic functions to fit 3-D data files on torpedo paths by the method of least squares. Polynomial functions of the first (linear), second (parabolic), third, and fourth orders were fitted to data for a variety of path segments of a torpedo run at NUWES using the method of least squares. Results suggest expansion of the program to include higher order polynomials and fitting shorter path segments will provide substantial reduction in residual errors. The method of sequential differences was tried on the data and can be incorporated in the smoothing program as a means of identifying outlier data points and of selecting the appropriate polynomial order for fitting the data
Type
Technical Report
Description
Series/Report No
Department
Research and Engineering
Naval Undersea Warfare Engineering Station
Identifiers
NPS Report Number
NPS55-73-036Pr
Sponsors
Funder
Naval Undersea Warfare Engineering Station, Keyport, Washington
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.