发明名称 |
Target searching device, target searching program, and target searching method |
摘要 |
The target searching device includes: a sound source which transmits a sound wave into a propagation space; a transducer array placed in an area to receive a forward scattering wave which scatters forward from the target within the propagation space; a subtraction processing device which subtracts a traveling wave directly traveling towards the transducer array from a mixed wave of the forward scattering wave and the traveling wave so as to separate the forward scattering wave; a passive-phase conjugate processing device which performs passive-phase conjugate processing on the forward scattering wave separated by the subtraction processing device so as to generate a passive-phase conjugated signal of the forward scattering wave; an autocorrelation processing device which performs autocorrelation processing on the traveling wave to generate an autocorrelation processed signal of the traveling wave; and a correlation device which judges a similarity between the autocorrelation processed signal and the passive-phase conjugated signal. |
申请公布号 |
US8649244(B2) |
申请公布日期 |
2014.02.11 |
申请号 |
US20090491678 |
申请日期 |
2009.06.25 |
申请人 |
TSURUGAYA YOSHIAKI;KIKUCHI TOSHIAKI;NEC CORPORATION |
发明人 |
TSURUGAYA YOSHIAKI;KIKUCHI TOSHIAKI |
分类号 |
G01S3/80;G01S1/72 |
主分类号 |
G01S3/80 |
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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