Title :
Efficient Bayesian detection of multiple events with a minimum-distance constraint
Author :
Kail, Georg ; Hlawatsch, Franz ; Novak, Clemens
Author_Institution :
Inst. of Commun. & Radio-Freq. Eng., Vienna Univ. of Technol., Vienna, Austria
Abstract :
We propose a Bayesian method for detecting multiple events in signals under the practically relevant assumption that successive events may not be arbitrarily close and distant events are effectively independent. Our detector has low complexity since it involves only the (Monte Carlo approximation to the) one-dimensional marginal posteriors. However, its performance is good since the metric it minimizes depends on the entire event sequence. We also describe an efficient sequential implementation of our detector that is based on a tree representation and a recursive metric computation.
Keywords :
Bayes methods; Monte Carlo methods; approximation theory; signal detection; trees (mathematics); Bayesian detection; Monte Carlo approximation; minimum-distance constraint; multiple events; recursive metric computation; tree representation; Bayesian methods; Detection algorithms; Detectors; Event detection; Maximum a posteriori estimation; Monte Carlo methods; Radio frequency; Signal generators; Bayesian analysis; Event detection; Monte Carlo method; pulse detection;
Conference_Titel :
Statistical Signal Processing, 2009. SSP '09. IEEE/SP 15th Workshop on
Conference_Location :
Cardiff
Print_ISBN :
978-1-4244-2709-3
Electronic_ISBN :
978-1-4244-2711-6
DOI :
10.1109/SSP.2009.5278635