发明名称 |
METHOD FOR RECOVERING LATERAL-SONAR IMAGES AND APPARATUS FOR CARRYING IT OUT |
摘要 |
A method and device for improving the restoration of the images obtained from samples taken from acoustic signals received by a lateral aimed sonar provides for the selection of samples from the signals received, the time interval between the samples selected being smaller at the beginning of the echo reception window than at the end thereof so as to improve the power of resolution of the sonar for directions of low obliqueness. The sampling may be carried out at a variable frequency or else at a very high fixed frequency, the selection then being made among all the samples obtained. |
申请公布号 |
DE3571508(D1) |
申请公布日期 |
1989.08.17 |
申请号 |
DE19853571508 |
申请日期 |
1985.12.27 |
申请人 |
INSTITUT FRANCAIS DU PETROLE |
发明人 |
BOURGEOIS, ALINE;JAN, DIDIER |
分类号 |
H04N5/30;G01S7/52;G01S7/526;G01S13/90;G01S15/89;(IPC1-7):G01S15/89 |
主分类号 |
H04N5/30 |
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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