Accession Number : AD0720310

Title :   Probabilities of Successful Data Association for Tracking in the Plane when Using Maximum Likelihood Association Procedures,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Owens,M. E. B.

Report Date : 02 FEB 1971

Pagination or Media Count : 15

Abstract : Data association is the determination of which subset of data contained in a larger set is related to a specific entity. The problem of data association is examined in an ocean surveillance environment in which the entities are vessels and the available data referring to the state of these vessels is either position, position and speed, or position, course, and speed. It is assumed that the vessels are uniformly and independently distributed over the ocean region of interest and that the total number of vessels in the region is known. For each data mix the maximum likelihood procedure for associating data referring to a particular vessel is given. Then a derivation is given for the probability that the data associated using this procedure actually refers to the state of the particular vessel. These probabilities are not only a function of the data mix available but also a function of the accuracies of the data and the number of vessels in the area of interest. (Author)

Descriptors :   (*OCEAN SURVEILLANCE, CORRELATION TECHNIQUES), (*NAVAL VESSELS, AERIAL RECONNAISSANCE), DATA PROCESSING, POSITION FINDING, PROBABILITY, RANDOM VARIABLES, SET THEORY, PROBABILITY DENSITY FUNCTIONS, INTEGRAL EQUATIONS, NUMERICAL INTEGRATION

Subject Categories : Military Operations, Strategy and Tactics

Distribution Statement : APPROVED FOR PUBLIC RELEASE