Results 51 to 60 of about 6,564,297 (383)

Multi-Mission Oriented Joint Optimization of Task Assignment and Flight Path Planning for Heterogeneous UAV Cluster

Remote Sensing, 2023
This paper puts forward a joint optimization algorithm of task assignment and flight path planning for a heterogeneous unmanned aerial vehicle (UAV) cluster in a multi-mission scenario (MMS). The basis of the proposed algorithm is to establish constraint
Xili Dong, Chenguang Shi, Wen Wen, Jianjiang Zhou   +3 more
doaj   +1 more source

Region-enhanced passive radar imaging [PDF]

, 2005
The authors adapt and apply a recently-developed region-enhanced synthetic aperture radar (SAR) image reconstruction technique to the problem of passive radar imaging.
Cetin, Mujdat, Lanterman, A.D., Çetin, Müjdat   +2 more
core   +1 more source

Hyper-parameter selection in non-quadratic regularization-based radar image formation [PDF]

, 2008
We consider the problem of automatic parameter selection in regularization-based radar image formation techniques. It has previously been shown that non-quadratic regularization produces feature-enhanced radar images; can yield superresolution; is ...
Batu, Ozge, Batu, Özge, Cetin, Mujdat, Çetin, Müjdat   +3 more
core   +1 more source

CNN-Based Target Detection and Classification When Sparse SAR Image Dataset is Available

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Synthetic aperture radar (SAR) is an earth observation technology that can obtain high-resolution image in all-weather and all-time conditions, and hence, has been widely used in civil and military applications.
Hui Bi, Jiarui Deng, Tianwen Yang, Jian Wang, Ling Wang   +4 more
doaj   +1 more source

Distributed Multi-target Localization System Based on Optical Wavelength Division Multiplexing Network

Leida xuebao, 2019
A distributed multi-target localization system based on optical Wavelength Division Multiplexing (WDM) network is demonstrated. The wideband orthogonal waveforms are generated by introducing the chaotic OptoElectronic Oscillator (OEO).
ZHU Dan, XU Weiyuan, CHEN Wenjuan, LIU Jiang, PAN Shilong   +4 more
doaj   +1 more source

Design and Performance Analysis of Sparse TOPS SAR Mode

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Terrain observation by progressive scans (TOPS) is a novel and promising wide-swath synthetic aperture radar (SAR) imaging mode, which overcomes the scalloping effect existing in ScanSAR.
Hui Bi, Guoxu Li, Yufan Song, Jingjing Zhang, Daiyin Zhu, Wen Hong, Yirong Wu   +6 more
doaj   +1 more source

Time-Delay Multiplexing of Two Beams in a Terahertz Imaging Radar [PDF]

, 2010
We demonstrate a time-delay multiplexing technique that doubles the frame rate of a 660–690-GHz imaging radar with minimal additional instrument complexity.
Bryllert, Tomas, Chattopadhyay, Goutam, Cooper, Ken B., Dengler, Robert J., Llombart, Nuria, Siegel, Peter H.   +5 more
core   +1 more source

Synthetic Aperture Radar Imaging System for Landmine Detection Using a Ground Penetrating Radar on Board a Unmanned Aerial Vehicle

IEEE Access, 2018
This paper presents a novel system to obtain images from the underground based on ground penetrating radar (GPR). The proposed system is composed by a radar module mounted on board an unmanned aerial vehicle (UAV), which allows the safe inspection of ...
María García Fernández, Yuri Álvarez López, Ana Arboleya Arboleya, Borja González Valdés, Yolanda Rodríguez Vaqueiro, Fernando Las-Heras Andrés, Antonio Pino García   +6 more
semanticscholar   +1 more source

A New Method of Robust Ground Moving Target Detection Under Different Backgrounds of Airborne SAR Based on Spatial Deformable Module

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Combined with the synthetic aperture radar (SAR) imaging algorithm, diverse simulation sample sets of ground moving targets are constructed to tackle the problem of insufficient measured data in the SAR ground moving target indication algorithm based on ...
He Yan, Hui Liu, Jialin Hao, Wenshuo Xu, Jingdong Zhang, Di Wu, Xudong Wang, Gong Zhang, Daiyin Zhu   +8 more
doaj   +1 more source

Assessment of the performance of the Chilbolton 3-GHz Advanced Meteorological radar for cloud-top height retrieval [PDF]

, 2005
The Chilbolton 3-GHz Advanced Meteorological Radar (CAMRa), which is mounted on a fully steerable 25 metre dish, can provide three-dimensional information on the presence of hydrometeors.
Clothiaux, E.E., Muller, J.-P., Naud, C.M., Slack, E.C., Wrench, C.L.   +4 more
core   +1 more source