发明名称 |
IMPROVEMENTS IN DIGITAL TIME-DELAY ACOUSTIC IMAGING |
摘要 |
This invention relates to improvements in or relating to digital time-delay acoustic imaging. According to the invention there is provided an acoustic imaging method for marine survey and other purposes comprising the steps of: insonifying a target area by periodic acoustic pulses; detecting reflections of said pulses by an array of at least two receiver transducers, which transducers generate respective output signals in response thereto, wherein further the signals are: sampled in time at a predetermined rate during an interval between said pulses; converted from analog to digital form; processed so as to generate a composite acoustic signal for each pixel in the insonified target area required to be imaged; and match-filtered with optimised filters in the frequency domain with an estimated source pulse signature.
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申请公布号 |
WO9524657(A1) |
申请公布日期 |
1995.09.14 |
申请号 |
WO1995GB00501 |
申请日期 |
1995.03.07 |
申请人 |
QUEENSFERRY CONSULTANTS LIMITED;SHIPPEY, GEOFFREY |
发明人 |
SHIPPEY, GEOFFREY |
分类号 |
G01S15/10;G01S15/89;(IPC1-7):G01S15/89 |
主分类号 |
G01S15/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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