Results 11 to 20 of about 1,794 (207)

Terahertz radar cross section measurements [PDF]

open access: yes35th International Conference on Infrared, Millimeter, and Terahertz Waves, 2010
We perform angle- and frequency-resolved radar cross section (RCS) measurements on objects at terahertz frequencies. Our RCS measurements are performed on a scale model aircraft of size 5-10 cm in polar and azimuthal configurations, and correspond closely to RCS measurements with conventional radar on full-size objects.
Iwaszczuk, Krzysztof   +2 more
openaire   +4 more sources

Terahertz High-resolution Radar Clutter Measurement and Analysis

open access: yesLeida xuebao, 2015
The clutter characteristics of terahertz high-resolution radar are essential for terahertz radar detection. This study analyzes the traditional clutter probabilistic model and the corresponding parametric estimation methods.
Yu Yang, Pi Yi-ming
doaj   +2 more sources

Research on Direct Detection Method and Performance of Single-photon Counting Terahertz Radar [PDF]

open access: yesLeida xuebao
The conventional terahertz radar suffers from limited operation range for long-distance, noncooperative target detection due to the low transmitter power and atmospheric attenuation effect, both of which pose a hindrance in meeting the requirements of ...
Kang LIU   +4 more
doaj   +2 more sources

Flexible terahertz beam manipulation and convolution operations in light-controllable digital coding metasurfaces [PDF]

open access: yesiScience
Summary: The development of coding metasurface opens an important development direction for beam modulator components. However, the lack of dynamic tunability is a major obstacle to the development and practicality of terahertz coding metasurface.
Min Jia   +4 more
doaj   +2 more sources

Development and Potential of Terahertz Technology in Military Applications [PDF]

open access: yesHangkong bingqi, 2022
Terahertz technology, as an advanced frontier technology, is both an opportunity and a challenge for military development. This paper discusses the terahertz technology, the generation and detection of terahertz and the physical properties of terahertz ...
Zhang Bohuai, Guo Kai
doaj   +1 more source

Analysis of terahertz wave penetration capacity to 2D conductive cylinder coated with steady-state parabolic distribution plasma media

open access: yesResults in Physics, 2021
Terahertz waves have long been considered as the most efficient of many solutions to solve the blackout problem for the reason that terahertz waves have much stronger penetration than microwaves.
Shuobei Sun, Song Liu, Shuangying Zhong
doaj   +1 more source

A Non-Linear Correction Method for Terahertz LFMCW Radar [PDF]

open access: yesIEEE Access, 2020
The nonlinearity in terahertz (THz) linear frequency modulated continuous wave (LFMCW) radar usually blurs the range profile and decreases the signal to noise ratio, hampering applications where high range-resolution is particularly emphasized. A software correction method, which comprises of transmitted nonlinearity estimation and nonlinear phase ...
Yade Li   +5 more
openaire   +2 more sources

Terahertz single-photon radar detection technology [PDF]

open access: yesSCIENTIA SINICA Physica, Mechanica & Astronomica, 2021
Terahertz single-photon radar detection technology implements single-photon detection in the terahertz region. It combines the high-resolution characteristics of the terahertz wave and the extreme high detection sensitivity of the single-photon radar.
ChengGao LUO   +3 more
openaire   +1 more source

Precise motion compensation method in terahertz ISAR imaging based on sharpness maximization

open access: yesElectronics Letters, 2022
According to the characteristics of the manoeuvring targets and the superiorities of Terahertz Inverse Synthetic Aperture Radar (THz‐ISAR), a precise motion compensation method based on image sharpness maximization for manoeuvring targets in the ...
Hetong Wang   +3 more
doaj   +1 more source

All-Metal Coding Metasurfaces for Broadband Terahertz RCS Reduction and Infrared Invisibility

open access: yesPhotonics, 2023
With the rapid advancement of modern technology and radar detection systems, electromagnetic (EM) stealth technology has become increasingly significant, particularly in aircraft stealth and military radar applications.
Ming Zhang   +6 more
doaj   +1 more source

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