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Title: Restoring the discontinuous heat equation source using sparse boundary data and dynamic sensors

Journal Article · · Inverse Problems

Abstract This study focuses on addressing the inverse source problem associated with the parabolic equation. We rely on sparse boundary flux data as our measurements, which are acquired from a restricted section of the boundary. While it has been established that utilizing sparse boundary flux data can enable source recovery, the presence of a limited number of observation sensors poses a challenge for accurately tracing the inverse quantity of interest. To overcome this limitation, we introduce a sampling algorithm grounded in Langevin dynamics that incorporates dynamic sensors to capture the flux information. Furthermore, we propose and discuss two distinct dynamic sensor migration strategies. Remarkably, our findings demonstrate that even with only two observation sensors at our disposal, it remains feasible to successfully reconstruct the high-dimensional unknown parameters.

Sponsoring Organization:
USDOE Office of Science (SC), Fusion Energy Sciences (FES); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
Grant/Contract Number:
SC0024583
OSTI ID:
2317694
Alternate ID(s):
OSTI ID: 2301752
Journal Information:
Inverse Problems, Journal Name: Inverse Problems Journal Issue: 4 Vol. 40; ISSN 0266-5611
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United Kingdom
Language:
English

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