Title :
Models and algorithms for tracking using trans-dimensional sequential Monte Carlo
Author :
Godsill, Simon ; Vermaak, Jaco
Author_Institution :
Dept. of Eng., Cambridge Univ., UK
Abstract :
We discuss modifications to tracking models, and sequential Monte Carlo algorithms for their estimation from sequential and batch data. New models for tracking are proposed which involve a dynamical model on both the hidden state value and its arrival times. In this way we aim to have a more flexible and parsimonious representation of time-varying state characteristics which is more amenable to estimation using Bayesian filtering. In order to perform inference in this scenario, new particle filters and smoothers are proposed for cases where the state process arrives at unknown times that are generally different from the observation arrival times.
Keywords :
Bayes methods; Monte Carlo methods; filtering theory; nonlinear filters; parameter estimation; state-space methods; target tracking; time-varying systems; tracking filters; Bayesian filtering; Monte Carlo smoothing; estimation; nonlinear filter; particle filters; state-space models; target tracking; time-varying state characteristics; tracking algorithms; tracking models; trans-dimensional sequential Monte Carlo algorithms; Bayesian methods; Data engineering; Filtering; Monte Carlo methods; Particle filters; Robustness; Signal processing algorithms; State estimation; Target tracking; Trajectory;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on
Print_ISBN :
0-7803-8484-9
DOI :
10.1109/ICASSP.2004.1326710