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公开(公告)号：EP1756983B1
公开(公告)日：2011-07-06
申请号：EP05733735.4
申请日：2005-04-26
发明人： NEUMEISTER, Dirk , HURKA, Jörg
CPC分类号： H04B11/00
摘要： The invention relates to a method for detecting targets emitting wavelength energy into a medium by means of entropy determination at time segments of electric reception signals of a receiver which is arranged in the medium remote from said target. In order to detect targets which emit particularly broad-band noisy low-energy signals, the time segments of the reception signals undergo linear transformation and the entropy of the reception of the transformed signals is determined and it is possible to infer upon said targets on the basis of modification of entropy in the transformed signals. Fourier analysis and/or wavelet analysis of the reception signals is carried out for linear transformation.
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公开(公告)号：EP2149055B1
公开(公告)日：2012-11-28
申请号：EP08716397.8
申请日：2008-03-10
发明人： HURKA, Jörg , FRITSCH, Rainer , MEYER, Ralf , STEIMEL, Ulrich , VOLKMER, Frank
CPC分类号： G01S3/802 , G01S3/8083
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公开(公告)号：EP2149055A1
公开(公告)日：2010-02-03
申请号：EP08716397.8
申请日：2008-03-10
发明人： HURKA, Jörg , FRITSCH, Rainer , MEYER, Ralf , STEIMEL, Ulrich , VOLKMER, Frank
IPC分类号： G01S3/802
CPC分类号： G01S3/802 , G01S3/8083
摘要： The invention relates to a method for generating target-marking directional tracks for a plurality of sound-emitting targets in a sea area directed by a plurality of sensors, each sensor providing a sensor track made of sequential bearings for each found and tracked target. In order to reduce the plurality of directional tracks to only as many target-marking directional tracks as targets found by the totality of sensors, and in order to correctly assign track segments between which gaps in time occur, sensor tracks of a plurality of sensors that are derived from a common target are consolidated into contact tracks - starting from the sensor tracks of the most accurate sensor - to form a track-to-track fusion, and contact tracks that are offset in time are checked for the probability of them belonging together. Contacts tracks that are offset in time and have a high probability of belonging together are associated with each other and designated as uninterrupted target tracks.
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公开(公告)号：EP1756983A1
公开(公告)日：2007-02-28
申请号：EP05733735.4
申请日：2005-04-26
发明人： NEUMEISTER, Dirk , HURKA, Jörg
CPC分类号： H04B11/00
摘要： The invention relates to a method for detecting targets emitting wavelength energy into a medium by means of entropy determination at time segments of electric reception signals of a receiver which is arranged in the medium remote from said target. In order to detect targets which emit particularly broad-band noisy low-energy signals, the time segments of the reception signals undergo linear transformation and the entropy of the reception of the transformed signals is determined and it is possible to infer upon said targets on the basis of modification of entropy in the transformed signals. Fourier analysis and/or wavelet analysis of the reception signals is carried out for linear transformation.
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