1981
DOI: 10.1109/proc.1981.12186
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Digital signal processing for sonar

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Cited by 372 publications
(87 citation statements)
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References 167 publications
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“…Since then digital signal processing methods have been continuously improved to keep up with the demands of the new developments [5,6,10,15,16,41,54,63]. Equipped with digital signal processing, sonars are now capable of delivering a wide range of new functions which were not available or difficult to achieve in the analogue technology or early digital technology, respectively.…”
Section: Digital Signal Processing In Modernized Sonarsmentioning
confidence: 99%
See 1 more Smart Citation
“…Since then digital signal processing methods have been continuously improved to keep up with the demands of the new developments [5,6,10,15,16,41,54,63]. Equipped with digital signal processing, sonars are now capable of delivering a wide range of new functions which were not available or difficult to achieve in the analogue technology or early digital technology, respectively.…”
Section: Digital Signal Processing In Modernized Sonarsmentioning
confidence: 99%
“…The basic tasks of digital signal processing in sonar systems include spatial filtering, also known as beam-forming, spectral analysis, matched filtration and correlation analysis [5,6,10,15,16,41,54,63]. The next sub-sections are concerned with how these tasks are completed in the modernized sonars.…”
Section: Sonar Digital Signal Processing Algorithmsmentioning
confidence: 99%
“…The signals are acquired employing the delay and sum (ds) technique to realize the DOA, allowing omnidirectional surveillance (Knight et al, 1981). In case of the experimental results to be described in Section 4, the directional beam is implemented using 32 adjacent sensors as it is shown in Fig.…”
Section: Beamformingmentioning
confidence: 99%
“…Os sinais são recebidos por um arranjo cilíndrico de sensores, sendo formados feixes empregando a técnica convencional de atraso e soma (Delay and Sum) [2] [6]. O conformador de feixes é um filtro espacial que combina os sinais de diferentes sensores com o objetivo de enfatizar os sinais provenientes de uma dada marcação, em detrimento dos sinais de outras marcações.…”
Section: Descrição Dos Sinais E Pré-processamentounclassified