July 1983	VOLUME 8	NUMBER 3	IJOEDY	(ISSN 0364-9059)

 SPECIAL ISSUE ON Positioning, localization, and tracking

NONTECHNICAL CONTENT
		Front cover and table of contents
		Back cover
GUEST EDITORIAL
James F. Bartram		Guest editorial		109
INTRODUCTION
Gordon Raisbeck		Special issue on positioning, localization, and tracking: Viewing the issue		110
INVITED PAPERS
Paul D. Higley		A low-cost acoustic positioning system for small manned submarines		113
William S. Hodgkiss Jr. and Victor C. Anderson		Acoustic positioning for an array of freely drifting infrasonic sensors		116
William S. Hodgkiss Jr.		The effects of array shape perturbation on beamforming and passive ranging		120
Melvin J. Hinich		Tracking a moving vessel from bearing measurements		131
Joseph C. Hassab		Contact localization and motion analysis in the ocean environment: A perspective		136
José M. F. Moura		A spatial smoothing formulation for location systems		148
James F. Arnold, Yaakov Bar-Shalom, Richard Estrada, and Ronald A. Mucci		Target parameter estimation using measurements acquired with a small number of sensors		163
Thomas E. Fortmann, Yaakov Bar-Shalom, and Molly Scheffe		Sonar tracking of multiple targets using joint probabilistic data association		173
REGULAR ISSUE PAPERS
Thomas M. Dauphinee		Deep ocean temperature profile measurements		184