Results 71 to 80 of about 230,956 (294)

Detection Performance of Noncoherent Radar: MIMO Radar, Phased Array Radar, Directional MIMO Radar

The Journal of Korean Institute of Communications and Information Sciences, 2011
In a traditional phased array radar, closely spaced antenna elements transmit a scaled version of single waveform to maximize the signal energy. On the contrary, a multiple-input multiple-output (MIMO) radar consists of widely separated antennas and transmits an arbitrary waveform from each antenna element.
Chan-Ho An, Jang-Hoon Yang, Ui-Young Pak, Young-Jae Ryu, Duk-Chan Han, Dong-Ku Kim   +5 more
openaire   +2 more sources

A Review on Sensor Technologies, Control Approaches, and Emerging Challenges in Soft Robotics

Advanced Robotics Research, EarlyView.
This review provides an introspective of sensors and controllers in soft robotics. Initially describing the current sensing methods, then moving on to the control methods utilized, and finally ending with challenges and future directions in soft robotics focusing on the material innovations, sensor fusion, and embedded intelligence for sensors and ...
Ean Lovett, Maxwell Hammond, Niloufar Seyfi, Amirreza Fahim Golestaneh, Venanzio Cichella, Caterina Lamuta   +5 more
wiley   +1 more source

A 2-D Fully Polarized Van Atta Array Based on Wide-Beam Tri-Polarized Antennas

Micromachines
This paper proposes a 2-D fully polarized Van Atta array, which consists of four tri-polarized antenna elements. The tri-polarized antenna element comprises a monopole antenna and a low-profile microstrip antenna that widens the beam by folding four ...
Jicheng Pan, Lei Chen, Shuangdi Zhao, Tianling Zhang   +3 more
doaj   +1 more source

Multi-target tracking of birds in complex low-altitude airspace based on GM_PHD filter

The Journal of Engineering, 2019
GM_PHD (Gaussian mixture of probability hypothesis density) cannot completely track multiple targets, such as the flying birds in the complex low-altitude airspace near the airport, due to the lack of the steps of birth detection, track extraction and ...
Tao Hong, Wu Zhang, Weishi Chen, Xiaolong Chen, Xinru Fu   +4 more
doaj   +1 more source

Evaluation of aircraft microwave data for locating zones for well stimulation and enhanced gas recovery [PDF]

Imaging radar was evaluated as an adjunct to conventional petroleum exploration techniques, especially linear mapping. Linear features were mapped from several remote sensor data sources including stereo photography, enhanced LANDSAT imagery, SLAR radar ...
Babcock, R., Borengasser, M., Elachi, C., Gattis, J., Konig, R., Macdonald, H., Tolman, D., Waite, W.   +7 more
core   +1 more source

Continual Learning for Multimodal Data Fusion of a Soft Gripper

Advanced Robotics Research, EarlyView.
Models trained on a single data modality often struggle to generalize when exposed to a different modality. This work introduces a continual learning algorithm capable of incrementally learning different data modalities by leveraging both class‐incremental and domain‐incremental learning scenarios in an artificial environment where labeled data is ...
Nilay Kushawaha, Egidio Falotico
wiley   +1 more source

Observation of edge solitons and transitions between them in a trimer circuit lattice

Communications Physics
In nonlinear topological systems, edge solitons either originate from linear topological edge modes or emerge as nonlinearity-induced localized states without topological protection.
Rujiang Li, Xiangyu Kong, Wencai Wang, Yixi Wang, Yongtao Jia, Huibin Tao, Pengfei Li, Ying Liu, Boris A. Malomed   +8 more
doaj   +1 more source

High-Gain Miniaturized Ultrawideband Antipodal Vivaldi Antenna with Metamaterials

Micromachines
A compact high-gain antipodal Vivaldi antenna with ultra-wideband (UWB) performance ranging from 1 GHz to 25 GHz is proposed and demonstrated. The antenna features two sets of tapered exponential slots along the flare edges to enhance low-frequency ...
Wentao Zhang, Linqi Shi, Chenjie Zhao, Rui Yang   +3 more
doaj   +1 more source

Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots

Advanced Robotics Research, EarlyView.
This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou, Zhiqiang Chen, Yuanbiao Ma, Zhiqiang Tang, Qianqian Wang   +4 more
wiley   +1 more source

Boundary-Reinforced Reciprocal Point Learning With Correlation-Aware Multiclassification for Open-Set Hyperspectral Image Classification

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Existing open-set classification methods for hyperspectral images (HSIs) often treat unknown categories as a homogeneous cluster, failing to exploit spectral–spatial heterogeneity for fine-grained discrimination.
Tuo Xu, Yuefan Du, Xi Yang, Yingzeng Yin
doaj   +1 more source