2007
DOI: 10.1121/1.2722054
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Steering vector sensor array elements with linear cardioids and nonlinear hippioids

Abstract: The purpose of this work is to study the impact due to individual vector sensor element steering patterns on linear array beamforming. Standard, linear beamformers employ cardioid beampatterns for each vector sensor. In this work, a class of vector sensor element steering patterns beyond the standard cardioid was examined. The element weighting is nonlinear but nonadaptive, making it simple to implement in hardware processing. The new sensor steering patterns, referred to as hippioids, are products of cardioid… Show more

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Cited by 14 publications
(7 citation statements)
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“…Besides the figure-8 sensor, other directional sensors could be investigated by the interested reader, e.g., the "cardioids" 35 or the "hypioids." 36…”
Section: Discussionmentioning
confidence: 99%
“…Besides the figure-8 sensor, other directional sensors could be investigated by the interested reader, e.g., the "cardioids" 35 or the "hypioids." 36…”
Section: Discussionmentioning
confidence: 99%
“…The additive combination of pressure and particle velocity measurements is optimal to improve low SNR signals, which is the case of reflections from deep bottom layers in seismic applications. These combinations are particular cases of the wellknown super directive beamformers [12] and VS combinations discussed in [26].…”
Section: Combinations Of Pressure and Particle Velocitymentioning
confidence: 99%
“…A major conclusion is that linear AVS arrays, albeit equipped with more measurement channels, provide a directivity improvement of up to 5 dB compared to conventional arrays of equal aperture lengths. More recently, Smith and Van Leijen (2007) proposed a beamformer by extending on the cardioid pattern of a single AVS in the array. In the method proposed by the authors, the cardioid response of a single AVS is raised to integer powers, resulting in a more directional single sensor response.…”
Section: Introductionmentioning
confidence: 99%