Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Photonics-Assisted Joint Communication-Radar System Based on a
  QPSK-Sliced Linearly Frequency-Modulated Signal   A photonics-assisted joint communication-radar system is proposed and
experimentally demonstrated, by introducing a quadrature phase-shift keying
(QPSK)-sliced linearly frequency-modulated (LFM) signal. An LFM signal is
carrier-suppressed single-sideband modulated onto the optical carrier in one
dual-parallel Mach-Zehnder modulator (DPMZM) of a dual-polarization
dual-parallel Mach-Zehnder modulator (DPol-DPMZM). The other DPMZM of the
DPol-DPMZM is biased as an IQ modulator to implement QPSK modulation on the
optical carrier. The polarization orthogonal optical signals from the
DPol-DPMZM are further combined and detected in a photodetector to generate the
QPSK-sliced LFM signal, which is used to realize efficient data transmission
and high-performance radar functions including ranging and imaging. An
experiment is carried out. Radar range detection with an error of less than 4
cm, ISAR imaging with a resolution of 14.99 cm*3.25 cm, and communication with
a data rate of 105.26 Mbit/s are successfully verified.

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The categories of this paper are: econ
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics
28
The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th