Results 41 to 50 of about 9,489 (235)

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

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

Advanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang, Weipeng Wang, Xuan Cong, Shiyu Wang, Gao Li, Sen Gong, Lin Huang, Hongxin Zeng, Yaxin Zhang, Ziqiang Yang   +9 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

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

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

Interpreting How Neural Networks Infer Scatterer Geometry from Echolocation Echoes

Advanced Intelligent Systems, EarlyView.
Neural networks enable echolocation‐based shape classification but remain difficult to interpret due to their black‐box nature. This work presents a feature‐importance metric to uncover the echo regions driving decisions in shape‐specialized networks.
Ganesh U. Patil, Hyung‐Suk Kwon, Bogdan‐Ioan Popa   +2 more
wiley   +1 more source

Adaptive detection of distributed targets in compound-Gaussian noise without secondary data: A Bayesian approach [PDF]

, 2011
In this paper, we deal with the problem of adaptive detection of distributed targets embedded in colored noise modeled in terms of a compound-Gaussian process and without assuming that a set of secondary data is available.The covariance matrices of the ...
Bandiera, Francesco, Giuseppe Ricci, Ricci, Giuseppe, O. Besson, Besson, Olivier, Olivier Besson, Francesco Bandiera   +6 more
core   +1 more source

Leading the Loop: Anchor‐Led Orchestration in Nascent Circular Ecosystems—A Qualitative Case Study

Business Strategy and the Environment, EarlyView.
ABSTRACT The transition towards a circular economy necessitates coordinated, systemic change across value chains. Yet the role of anchor firms in initiating and orchestrating nascent circular ecosystems remains underexplored. Using an inductive, qualitative single‐case design, we analyse a German mid‐sized entrepreneurial firm, drawing on 21 interviews
Johann Felix Mader, Patrick Spieth
wiley   +1 more source

Doppler polarimetric ground clutter identification and suppression for atmospheric radars based on co-polar correlation

Journal of Telecommunications and Information Technology, 2001
A new clutter suppression technique that uses both Doppler and polarimetric information is presented. Polarimetric properties of the target and clutter are calculated per Doppler frequency cell and based on this information clutter suppression is ...
Dmitri Moisseev, Christine Unal, Herman Russchenberg, Leo P. Ligthart   +3 more
doaj   +1 more source

A 2D processing algorithm for detecting landmines using Ground Penetrating Radar data [PDF]

, 2012
Ground Penetrating Radar(GPR) is one of a number of technologies that have been used to improve landmine detection efficiency. The clutter environment within the first few cm of the soil where landmines are buried, exhibits strong reflections with ...
Cockshott, W.P., Sengodan, A.
core