Inequality constraint in least-squares inversion of geophysical data

• Kim Hee Joon

  Pukyong National University

• Song Yoonho

  Korea Institute of Geology, Mining and Materials

• Lee Ki Ha

  Lawrence Berkeley National Laboratory

抄録

This paper presents a simple, generalized parameter constraint using a priori information to obtain a stable inverse of geophysical data. In the constraint the a priori information can be expressed by two limits: lower and upper bounds. This is a kind of inequality constraint, which is usually employed in linear programming. In this paper, we have derived this parameter constraint as a generalized version of positiveness constraint of parameter, which is routinely used in the inversion of electrical and EM data. However, the two bounds are not restricted to positive values. The width of two bounds reflects the reliability of ground information, which is obtained through well logging and surface geology survey. The effectiveness and convenience of this inequality constraint is demonstrated through the smoothness-constrained inversion of synthetic magnetotelluric data.

収録刊行物

• Ｅａｒｔｈ，　Ｐｌａｎｅｔｓ　ａｎｄ　Ｓｐａｃｅ

  Ｅａｒｔｈ，　Ｐｌａｎｅｔｓ　ａｎｄ　Ｓｐａｃｅ 51 (4), 255-259, 1999

  地球電磁気・地球惑星圏学会 、公益社団法人 日本地震学会、特定非営利活動法人 日本火山学会、日本測地学会、日本惑星科学会

キーワード

• Space and Planetary Science
• Geology

詳細情報

• CRID: 1390282681487356800
• NII論文ID: 10003737666
• NII論文ID: 130003955986
• NII書誌ID: AA11211921
• DOI: 10.1186/bf03352229
• ISSN: 18805981
• ISSN: 13438832
• NDL書誌ID: 4726134
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4726134
• Web Site: https://link.springer.com/content/pdf/10.1186/BF03352229.pdf
• Web Site: https://link.springer.com/article/10.1186/BF03352229/fulltext.html
• Web Site: http://link.springer.com/content/pdf/10.1186/BF03352229
• 本文言語コード: en
• データソース種別:
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  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可