Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tethered Power Supply for Quadcopters: Architecture, Analysis and
  Experiments   Tethered quadcopters are used for extended flight operations where the
necessary power to the system is provided through the tether from an external
power source on the ground. In this work, we study the design factors such as
the tether mass, electrical resistance, voltage conversion efficiency, etc.
that influence the power requirements. We present analytical formulations to
predict the power requirement for a given setup. Additionally, we show the
existence of a critical hover height for a single-quadcopter tether system,
beyond which it is physically (electrically) impossible for the quadcopter to
hover. We then present experimental results for single and two-quadcopter
tethered systems. Power supply readings from the experiments in various
configurations are consistent with the predictions from the analysis (within
5%), which experimentally validates the presented analysis. A two-quadcopter
system powered via a single tether is flown through a corridor to demonstrate
one of the applications of having multiple quadcopters on the same tether.

3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex
10
The categories of this paper are: q-bio
9
The categories of this paper are: nlin
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The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ