Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Bistatic full-wave radar tomography detects deep interior voids, cracks
  and boulders in a rubble-pile asteroid model   In this paper, we investigate full-wave computed radar tomography (CRT) using
a rubble-pile asteroid model in which a realistic shape (Itokawa) is coupled
with a synthetic material composition and structure model. The aim is to show
that sparse bistatic radar measurements can distinguish details inside a
complex-structured rubble-pile asteroid. The results obtained suggest that
distinct local permittivity distribution changes such as surface layers, voids,
low-permittivity anomalies, high-permittivity boulders, and cracks can be
detected with bistatic CRT, when the total noise level in the data is around
-10 dB with respect to the signal amplitude. Moreover, the bistatic measurement
set-up improves the robustness of the inversion compared to the monostatic
case. Reconstructing the smooth Gaussian background distribution was found to
be difficult with the present approach, suggesting that complementary
techniques, such as gravimetry, might be needed to improve the reliability of
the inference in practice.

19
The categories of this paper are: eess
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
12
The categories of this paper are: nucl-th
28
The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc