Title :
The spherical interpolation method of source localization
Author :
Smith, Julius O. ; Abel, Jonathan S.
Author_Institution :
NeXT, Inc., Palo Alto, CA, USA
fDate :
1/1/1987 12:00:00 AM
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;
Journal_Title :
Oceanic Engineering, IEEE Journal of
DOI :
10.1109/JOE.1987.1145217
