Title :
Jump-diffusion based sampling algorithm for target tracking and recognition
Author :
Srivastava, Anuj ; Teichman, Robert S. ; Miller, Michael I. ; Snyder, Donald L. ; O´Sullivan, Joseph A.
Author_Institution :
Electron. Signals & Syst. Res. Lab., Washington Univ., St. Louis, MO, USA
Abstract :
A new random sampling algorithm for recognition and tracking of an unknown number of targets and target types is presented. Taking a Bayesian approach we define a posterior measure on the parameter space by combining the observed data likelihood with a prior based on airplane dynamics. The Newtonian force equations governing the airplane motion are utilized to form the prior density on the airplane positions. The sampling algorithm based on Jump-diffusion processes, first introduced by Grenander and Miller (1991), is derived for generating high probability estimates of target positions, orientations and types from the posterior measure. Results are presented from its joint implementation on the Silicon Graphics workstation and the DECmpp SIMD machine distributing data-simulation, visualization and computation over network
Keywords :
Bayes methods; array signal processing; parameter estimation; radar theory; statistical analysis; Bayesian approach; DECmpp SIMD machine; Newtonian force equations; Silicon Graphics workstation; airplane dynamics; airplane motion; airplane positions; data-simulation; high probability estimates; jump-diffusion based sampling algorithm; observed data likelihood; parameter space; passive sensor array; posterior measure; prior density; random sampling algorithm; target orientations; target positions; target recognition; target tracking; target types; visualization; Airplanes; Bayesian methods; Equations; Graphics; Position measurement; Sampling methods; Silicon; Target recognition; Target tracking; Workstations;
Conference_Titel :
Signals, Systems and Computers, 1993. 1993 Conference Record of The Twenty-Seventh Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
0-8186-4120-7
DOI :
10.1109/ACSSC.1993.342385