Gaussian mixture multitarget–multisensor Bernoulli tracker for multistatic sonobuoy fields. Issue 12 (1st December 2017)

• Record Type: Journal Article
• Authors: Ristic, Branko; Angley, Daniel; Suvorova, Sofia; Moran, Bill; Fletcher, Fiona; Gaetjens, Han; Simakov, Sergey
• Is Part Of: IET radar, sonar & navigation. Volume 11:Issue 12(2017)
• Page Start: 1790
• Page End: 1797
• Publication Date: 2017-12-01
• Subjects: Gaussian processes -- mixture models -- target tracking -- object detection -- sonar -- radar signal processing -- Bayes methods -- filtering theory -- sensor fusion -- geophysical signal processing -- oceanographic techniques; Gaussian mixture multitarget‐multisensor Bernoulli tracker -- multistatic sonobuoy fields -- emitter sonar sensors -- receiver sonar sensors -- underwater target detection -- underwater target tracking -- optimal Bayesian MS filter -- linear‐multitarget paradigm -- false track discrimination -- track initiation -- low signal‐to‐noise ratio targets -- transmitted signal waveform -- DST Group -- realistic multistatic sonar emulator; Signal processing -- Periodicals; Radar -- Periodicals; Sonar -- Periodicals; Electronics in navigation -- Periodicals; Navigation -- Periodicals; 621.3848
• DOI: 10.1049/iet-rsn.2017.0077
• Languages: English
• ISSNs: 1751-8784

Abstract

Abstract : Sonobuoy fields, consisting of a large network of emitter and receiver sonar sensors on buoys, are increasingly being used for detection and tracking of underwater targets in a defined maritime area. This study presents a Gaussian mixture version of a multitarget–multisensor (MS) Bayesian‐type tracker developed specifically for multistatic sonobuoy fields. Its foundation is the optimal Bayesian MS filter for a single target in clutter. The multi target feature is incorporated using the linear‐multitarget paradigm, which is a fast and accurate approximation assuming the density of underwater targets is low. Reliable track initiation and false track discrimination for low signal‐to‐noise ratio targets are achieved using the amplitude feature of reported detections. The developed tracker is capable of processing measurements with different modalities, depending on the transmitted signal waveform. It is integrated and tested within a realistic multistatic sonar emulator developed by DST Group.