Results 1 to 10 of about 1,520,699 (256)

A High-Precision Baseline Calibration Method Based on Estimation of Azimuth Fringe Frequency with THz Interferometry SAR

Remote Sensing, 2023
In this study, repeat-pass synthetic aperture radar interferometry (repeat-pass THz InSAR) is first extended to the terahertz band, and it has tremendous potential in the application of high-resolution three-dimensional (3D) imaging due to its shorter ...
Zeyu Wang, Chao Li, Guohua Zhang, Shen Zheng, Xiaojun Liu, Guangyou Fang   +5 more
doaj   +1 more source

Magnetomechanical Properties of Fe-Si-B and Fe-Co-Si-B Metallic Glasses by Various Annealing Temperatures for Actuation Applications

Sensors, 2022
Fe-based amorphous alloys have advantages of low iron loss and high effective permeability, which are widely used in sensors and actuators. Power efficiency is one of the most important indicators among power conversion applications.
Yu Sun, Xu Zhang, Sheng Wu, Xin Zhuang, Bin Yan, Wanhua Zhu, Christophe Dolabdjian, Guangyou Fang   +7 more
doaj   +1 more source

Design of an Ultra-wideband Pseudo Random Coded MIMO Radar Based on Radio Frequency Switches

Leida xuebao, 2017
A Multiple-Input Multiple-Output (MIMO) ultra-wideband radar can detect the range and azimuth information of targets in real time. It is widely used for geological surveys, life rescue, through-wall tracking, and other military or civil fields.
Su Hai, Zhang Xiaojuan, Ye Shengbo, Zhang Qunying, Fang Guangyou   +4 more
doaj   +1 more source

Study on Electromagnetic Radiation Interference Caused by Rocket Fuel

Sensors, 2021
During the launch and return of a spacecraft, the intense combustion of propellants generates strong electromagnetic radiation, which interferes with the operation of electronic equipment in the spacecraft. To improve the electromagnetic compatibility of
Yuanbo Cui, Jian Jiang, Deren Kong, Shang Gao, Shuai Wang   +4 more
doaj   +1 more source

Enhanced Faraday rotation and magneto-optical figure of merit in gold grating/graphene/silicon hybrid magneto-plasmonic devices

APL Photonics, 2018
Graphene is a promising THz magneto-optical material. However, high Faraday rotation is only achievable at a low THz frequency range in single layer graphene.
Jun Qin, Shuang Xia, Ke Jia, Chuangtang Wang, Tingting Tang, Haipeng Lu, Li Zhang, Peiheng Zhou, Bo Peng, Longjiang Deng, Lei Bi   +10 more
doaj   +1 more source

The Lunar Regolith Structure and Electromagnetic Properties of Chang’E-5 Landing Site

Remote Sensing, 2022
On 1 December 2020, China’s Chang’E-5 (CE-5) probe successfully landed in the northeastern Oceanus Procellarum. This work mainly presents the results of Lunar Regolith Penetrating Radar (LRPR) equipped on the CE-5 Lander.
Yuxi Li, Bin Zhou, Shaoxiang Shen, Wei Lu, Chuanjun Tang, Shidong Li, Yan Su, Shun Dai, Guangyou Fang   +8 more
doaj   +1 more source

Experimental UWB Propagation Channel Path Loss and Time-Dispersion Characterization in a Laboratory Environment

International Journal of Antennas and Propagation, 2013
The knowledge of the propagation channel properties is an important issue for a successful design of ultrawideband (UWB) communication systems enabling high data rates in short-range applications.
Lorenzo Rubio, Juan Reig, Herman Fernández, Vicent M. Rodrigo-Peñarrocha   +3 more
doaj   +1 more source

High-Resolution Imaging Method for Vehicle-Mounted FMCW Shallow Ice Radar

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The accumulation rate is a key parameter for calculating the surface mass balance of ice sheets and estimating sea level rise. Frequency-modulated continuous wave ice-sounding radar (FMCW-ISR) can be used to detect internal layers of ice sheets, and data
Binbin Li, Bo Zhao, Xuyi Yuan, Jingxue Guo, Xiaojun Liu   +4 more
doaj   +1 more source

The new CAS-DIS digital ionosonde

Annals of Geophysics, 2013
A high quality digital ionosonde called the Chinese Academy of Sciences digital ionosonde (CAS-DIS) has been developed for investigations of the ionosphere.
Wang Shun, Chen Ziwei, Zhang Feng, Fang Guangyou   +3 more
doaj   +1 more source

A Method for Deception Jamming False Target Identification in SAR Imagery Using Efficient Object Detection and Low-Rank Shadow Extraction

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Synthetic aperture radar (SAR) is an active microwave remote sensing technology that provides abundant data for Earth observation. However, the reliability of SAR data is threatened by advanced deception jamming techniques, which generate highly ...
Yingying Wu, Qunying Zhang, Wenqiang Huang, Jiale Zhang, Jinshuo Hou, Wei Lu, Xiaojun Liu   +6 more
doaj   +1 more source