PASSIVE LOCALIZATION USING DOPPLER MEASUREMENTS

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Authors
  1. Towers, J.J.
  2. Chan, Y.T.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN);Royal Military Coll of Canada, Kingston ONT (CAN) Dept of Electrical and Computer Engineering
Abstract
The paper is concerned with determining the location of a moving underwater target generating a pure acoustic tone using doppler measurements at stationary sensors. We explore the problem from three perspectives: one sensor with many measurements, many sensors with one measurement, and many sensors with man measurements. We consider existence and uniqueness of solutions, observability and minimum data requirements, and develop Cramer Rao bounds for quantities related to localization and tracking. For each approach, we have proposed an algorithm for calculating the least squares estimate, which roughly attains the Cramer Rao bound in simulations at low noise levels. We suggest how our information might be presented to an operator in a real-time system.
Report Number
DREA-CR-91-401 — Contractor Report (Final)
Date of publication
15 Sep 1990
Number of Pages
64
DSTKIM No
91-03074
CANDIS No
70267
Format(s):
Document Image stored on Optical Disk;Originator's fiche received by DSIS

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