Results 31 to 40 of about 28,176 (205)

Clutter suppression and target energy focussing for airborne rotating antenna radar using improved Space‐time adaptive processing

IET Radar, Sonar & Navigation, 2023
Rotating antenna radar is widely used on the airborne platform to extend the range of the radar detection airspace. However, the echo signal received by an airborne rotating radar is spread in the Doppler domain due to the platform motion and the antenna
Lichao Zhou, Yifeng Wu, Xiaobo Deng, Lei Zhang, Jianxin Wu, Qiang Zhang, Jia Duan   +6 more
doaj   +1 more source

The Dynamic Sea Clutter Simulation of Shore-Based Radar Based on Stokes Waves

Remote Sensing, 2022
The sea clutter model based on the physical sea surface can simulate radar echo at different times and positions and is more suitable for describing dynamic sea clutter than the traditional models based on statistical significance. However, when applying
Feng Luo, Yao Feng, Guisheng Liao, Linrang Zhang   +3 more
doaj   +1 more source

MXene‐Coated 3D Printed Horn Antennas for Ku Frequency Band

Advanced Materials Technologies, EarlyView.
An additive manufacturing approach to 3D printing horn antennas and coating them with Ti3C2Tx MXene is proposed. Rapid fabrication of lightweight, high‐performance antennas operating in the Ku‐band (12.4–18 GHz) has been demonstrated. The MXene‐coated antennas exhibit comparable electromagnetic performance to conventional, costly aluminum ones, with ...
Zahra Sarpanah Sourkouhi, Jamal Alhourani, Yury Gogotsi, Mohammad H. Zarifi   +3 more
wiley   +1 more source

Broadband Achromatic Programmable Electromagnetic Camouflage via Fluidic‐Accessible Metasurface

Advanced Science, EarlyView.
A fluidic access metasurface enables dynamic, broadband electromagnetic illusions. By physically reconstructing conductive patterns with liquid metal, the metasurface achieves real‐time, pixel‐level control over phase dispersion. This allows for the programmable generation of arbitrary strong scattering point arrays, effectively deceiving high ...
Shipeng Liu, Jiahao Zhang, Jiale Wang, Zeyao Chen, Zhaotong Yu, Jinhong Luo, Jiabao Luo, Rujia Cao, Shuxi Gong, Qingxin Guo, Ping Li, Rujiang Li, Ke Chen, Yongtao Jia, Ying Liu   +14 more
wiley   +1 more source

Clutter Suppression Approach for End-Fire Array Airborne Radar Based on Adaptive Segmentation

IEEE Access, 2019
End-fire array antenna is a kind of special radar antenna with beam pointing perpendicular to the normal direction of the array. Because of its low profile and directional radiation characteristics, it is especially suitable for blind zone compensation ...
Yongwei Li, Wenchong Xie, Huihuang Mao, Ruijie Dong   +3 more
doaj   +1 more source

Survey and Sequence Strategies for Full‐3D Electrical Resistivity Tomography in Archaeological Sites: A Case Study on a Domus of the Roman Town of Augusta Bagiennorum (NW Italy)

Archaeological Prospection, EarlyView.
ABSTRACT Preliminary geophysical investigations are a cost‐effective and efficient way to screen archaeological sites and locate buried structures. Ground‐penetrating radar (GPR) is one of the most widely used methods for archaeological prospection, but in some sites, it cannot be employed effectively due to the presence of clay or other electrically ...
Andrea Vergnano, Diego Franco, Antonio Merico, Francesca Pace, Sofia Uggè, Cesare Comina   +5 more
wiley   +1 more source

Radar clutter suppression schemes

Electronics Letters, 1984
In the letter the spatial correlation between radar clutter returns from adjacent range rings is exploited to construct two new adaptive clutter suppression schemes. The schemes are tested by using actual radar data, including weather clutter as well as ground clutter.
Q.-T. Zhang, S. Haykin
openaire   +1 more source

Sustainable Upcycling of Office Waste Paper Into Cobalt/Carbon Aerogels for Highly Efficient Microwave Absorption

Electron, EarlyView.
Co/C aerogels (Co/CAs) are successfully fabricated with office waste paper (OWP) as the raw material by loading ZIF‐67 crystals. The optimal sample exhibited an effective absorption bandwidth of 5.6 GHz, which outperforms many biomass‐derived microwave absorbing materials.
Yan Wang, Lixue Gai, Xingyi He, Xijiang Han, Yongzheng Chen, Yunchen Du   +5 more
wiley   +1 more source

Metode Reduksi Clutter Dinamis pada Sistem Radar-Drone untuk Deteksi Tanda Vital Pernafasan

Jurnal Elkomika
ABSTRAK Pengembangan radar pendeteksi tanda vital yang dikombinasikan dengan kemampuan deteksi di balik penghalang diarahkan untuk menghasilkan teknologi pencarian korban selamat di bawah reruntuhan.
ALOYSIUS ADYA PRAMUDITA, ALDI RIFALDI DWINANDA, BAMBANG SETIA NUGRAHA, HARFAN HIAN RYANU   +3 more
doaj   +1 more source

Radar Waveform Design Method Based on Cascade Optimization Processing under Missing Clutter Prior Data

Leida xuebao, 2023
Cognitive radar waveform design often relies on accurate clutter prior information. When prior information data is missing, the constructed clutter model will be severely mismatched, affecting the radar’s ability to suppress clutter.
Yingkui ZHANG, Guohao SUN, Suchuan ZHONG, Xianxiang YU   +3 more
doaj   +1 more source