DocumentCode
1048396
Title
The spherical interpolation method of source localization
Author
Smith, Julius O. ; Abel, Jonathan S.
Author_Institution
NeXT, Inc., Palo Alto, CA, USA
Volume
12
Issue
1
fYear
1987
fDate
1/1/1987 12:00:00 AM
Firstpage
246
Lastpage
252
Abstract
A closed-form least squares approximate maximum likelihood method for localization of broad-band emitters from time-difference-of-arrival (TDOA) measurements, called the spherical interpolation (SI) method, is presented. The localization formula is derived from least squares "equation-error" minimization. Computer simulation results show that the SI method has variance approaching the Cramer-Rap lower bound.
Keywords
Arrays; Delay estimation; Interpolation; Target detection; Aerospace industry; Control systems; Geophysical measurements; Interpolation; Least squares approximation; Least squares methods; Noise measurement; Position measurement; Sea measurements; Sensor arrays;
fLanguage
English
Journal_Title
Oceanic Engineering, IEEE Journal of
Publisher
ieee
ISSN
0364-9059
Type
jour
DOI
10.1109/JOE.1987.1145217
Filename
1145217
Link To Document