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008240909e199401##nscd    ob   f000 0 eng d
040 |aCaOODSP|beng|erda|cCaOODSP
0410 |aeng|beng|bfre
0861 |aD68-21/34-1994E-PDF
1001 |aRoger, William Alexander, |eauthor.
24510|aEvaluation of the Probabilistic Data Association filter in a realistic sonar environment / |cWilliam A. Roger ; approved by C.W. Bright.
264 1|aDartmouth, N.S. : |bNational Defence, Research and Development Branch, Defence Research Establishment Atlantic, |cJanuary 1994.
300 |a1 online resource (iv, 18 pages) : |bgraphs.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aTechnical memorandum ; |v94/201
500 |aDigitized edition from print [produced by Defence Research and Development Canada].
504 |aIncludes bibliographical references (page 15).
5203 |a"The problem of tracking an underwater narrowband signal that has experienced the many vagaries of open ocean transmission is of considerable interest. Usually the simpler signal followers developed for radar applications fail when attempting to handle the unique underwater environment encountered by a passive line array receiver. This paper investigates a particular recursive algorithm called Probabilistic Data Association filter to determine if it can provide robust passive tracking of low signal-to-noise signals in a background of clutter caused by other sources and noise. It will be shown that two modifications to the basic algorithm substantially improve its tracking performance and its ability to estimate the target signals trajectory. In addition, an effective technique for detecting when the filter is no longer following the signal will be presented. This loss-of-lock detector works for very low-level target signals"--Abstract, page ii.
546 |aIncludes abstracts in English and French.
650 0|aUnderwater acoustic telemetry.
650 0|aSimulated annealing (Mathematics)
650 6|aTélémétrie acoustique sous-marine.
650 6|aRecuit simulé.
7102 |aDefence Research Establishment Atlantic, |eissuing body.
830#0|aD.R.E.A. technical memorandum ;|v94/201.|w(CaOODSP)9.941838
85640|qPDF|s1.33 MB|uhttps://publications.gc.ca/collections/collection_2024/rddc-drdc/D68-21-34-1994-eng.pdf