APPLICATION OF AN ACOUSTIC PARABOLIC REFLECTION TO HIGH RESOLUTION SUB-BOTTOM SURVEYING.

被引：0
|
作者：
Bolus, Robert
Sivaprasad, K.
Frost, A.D.
机构：
来源：
| 1600年 / 03期
基金：
美国海洋和大气管理局;
关键词：
Antennas - PETROLEUM PROSPECTING - Offshore;
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暂无
中图分类号：
学科分类号：
摘要：
Current methods of subbottom sounding use low frequencies for penetration with the subsequent degradation of beam width such that large horizontal areas at the bottom are illuminated. A description is given of a method of subbotom surveying at medium frequencies, 12 kHz, with good penetration and narrow beam width by using a parabolic reflector. Design criteria for the surveyor along with the resultant data obtained from experiments performed at Lake Winnipesaukee, New Hampshire are presented.
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