| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Outline of Final Research Achievements |
First, inverse obstacle scattering problems of waves governed by the classical wave equation and Maxwell system under several boundary conditions have been considered by using the enclosure method in the finite time domain. Several formulas for extracting information about the location, shape and further the quantitative and qualitative state of the surface of the obstacle from the observed wave are given. Second, a new version of the time domain enclosure method using a single input has been discovered.
Third, a method letting us know the estimation of the location together with the existence/nonexistence of unknown discontinuity embedded in a rough background medium from the observed wave has been introduced.
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