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Attenuation coefficients of water at lower frequency band
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- INAGAKI Masaharu
- Walnut Ltd.
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- SAITO Yutaka
- Walnut Ltd.
Bibliographic Information
- Other Title
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- 低周波帯における水の減衰定数
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Description
Water is highly lossy media for ground penetrating radar (GPR). A band near 500MHz is most commonly used, because the surveys behind concrete structures have many demands and targetted depth is at 1 to 2 metres. It is known that lower frequencies give more penetration to electromagnetic wave even in water. But attenuation properties at lower frequency bands are not easily measured. We have tried to measure the attenuation coefficients of water with good approximation at some frequencies between 25MHz and 400MHz by use of GPR itself. The experiment has been carried out on a lake, and the values have been subslantially figured out.
Journal
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- Technical report of IEICE. SANE
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Technical report of IEICE. SANE 97 (378), 55-60, 1997-11-18
The Institute of Electronics, Information and Communication Engineers
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Keywords
Details 詳細情報について
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- CRID
- 1570009752500612352
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- NII Article ID
- 110003288728
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- NII Book ID
- AN10013301
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- Text Lang
- ja
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- Data Source
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- CiNii Articles
