Results 61 to 70 of about 1,458 (182)

Micro-Doppler radar classification of humans and animals in an operational environment [PDF]

Expert Systems with Applications, 2018
Abstract A combined Gaussian mixture model and hidden Markov model (HMM) is developed to distinguish between slow moving animal and human targets using mel-cepstrum coefficients. This method is compared to the state-of-the-art in current micro-Doppler classification and an improvement in performance is demonstrated. In the proposed method, a Gaussian
W. D. van Eeden, Johan Pieter de Villiers, Robert John Berndt, Willem A. J. Nel, Erik Blasch   +4 more
openaire   +2 more sources

Enhanced Multi-Channel Feature Synthesis for Hand Gesture Recognition Based on CNN With a Channel and Spatial Attention Mechanism

IEEE Access, 2020
Millimeter-wave (MMW) radar hand gesture recognition technology is becoming important in many electronic device control applications. Currently, most existing approaches utilize the radical and micro-Doppler features from single-channel MMW radar, which ...
Chuan Du, Lei Zhang, Xiping Sun, Junxu Wang, Jialian Sheng   +4 more
doaj   +1 more source

Enhancing Microrobot Swarm Stability and Adaptation by Autonomous Field‐of‐View Planning

Advanced Intelligent Systems, Volume 8, Issue 1, January 2026.
This work presents an adaptive cross‐field‐of‐view navigation strategy for microrobot swarms in large‐scale workspaces by integrating global path planning via A* and local replanning using optimized informed rapidly‐exploring random tree star . The hybrid approach ensures efficient and robust trajectory execution in dynamic environments, enhancing the ...
Zhaowen Su, Lijun Fang, Hoyeon Kim, U. Kei Cheang   +3 more
wiley   +1 more source

Skin‐Like Airflow Odometry for Micro Aerial Vehicles Based on Distributed Thermal Anemometers

Advanced Intelligent Systems, Volume 8, Issue 1, January 2026.
A novel bioinspired skin‐like airflow odometry system for micro aerial vehicles employs distributed thermal anemometers to enable motion estimation in GNSS‐denied environments. Computational fluid dynamics simulation validates sensor deployment feasibility, while a transformer‐enhanced gated recurrent unit network extracts high‐precision airflow ...
Weicheng Di, Shihao Dang, Zheng Gong, Jiahui Zhang, Jinwu Xiang, Yonggang Jiang, Daochun Li, Zhan Tu   +7 more
wiley   +1 more source

Micro‐motion parameters extraction of rotating target based on analytical solution in vortex electromagnetic wave radar

IET Radar, Sonar & Navigation
The linear Doppler effect and angular Doppler effect in vortex electromagnetic wave radar echoes can be used to extract comprehensive micro‐motion parameters.
Hang Yuan, Yi‐Jun Chen, Ying Luo, Jia Liang, Ying‐Xi Liu, Dan Wang   +5 more
doaj   +1 more source

Classification of Drones Based on Micro-Doppler Radar Signatures Using Dual Radar Sensors

Leida xuebao, 2018
Classification of drones is important due to their increasing popularity and potential threats. The micro-Doppler signatures that depend on the rotation of rotor blades facilitate the classification of drones.
Zhang Pengfei, Li Gang, Huo Chaoying, Yin Hongcheng   +3 more
doaj   +1 more source

Reimagining Outcomes: A Perspective Review of Advances in Remote Monitoring Technologies in Post‐Arthroplasty Patient Care

Journal of Orthopaedic Research, Volume 44, Issue 1, January 2026.
ABSTRACT Arthroplasty surgery is a common and successful end‐stage intervention for advanced osteoarthritis. Yet, postoperative outcomes vary significantly among patients, leading to a plethora of measures and associated measurement approaches to monitor patient outcomes. Traditional approaches rely heavily on patient‐reported outcome measures (PROMs),
Janie L. Astephen Wilson, Ryan M. Chapman   +1 more
wiley   +1 more source

Where numerical weather prediction meets large‐eddy simulations in a convective boundary layer during the FESSTVaL field experiment

Quarterly Journal of the Royal Meteorological Society, Volume 152, Issue 774, January 2026 Part A.
We exploit the Field Experiment on Sub‐mesoscale Spatio‐Temporal Variability in Lindenberg (FESSTVaL) to compare the performance of an NWP model at sub‐km resolutions with a traditional LES model. Focusing on clear‐sky ABL turbulence (June 14), shallow convective clouds and surface radiation (June 27), and deep convective cold pools (June 29), we find ...
Mirjana Sakradzija, Maike Ahlgrimm, Frank Beyrich, Chiel van Heerwaarden, Eileen Päschke, Ulrich Görsdorf, Bastian Kirsch, Juerg Schmidli, Noviana Dewani   +8 more
wiley   +1 more source

Human Micro-Doppler Frequency Estimation Approach for Doppler Radar

IEEE Access, 2018
Micro-Doppler frequency estimation is an important issue for radar target recognition. In this paper, a novel approach is proposed to accurately estimate the micro-Doppler frequencies of specific target scattering parts, which can be very promising in ...
Yipeng Ding, Chengxi Lei, Xuemei Xu, Kehui Sun, Ling Wang   +4 more
doaj   +1 more source

From Detection to Countermeasure: A Review of Key Technologies in Counter‐Unmanned Aerial Vehicle Systems

IET Cyber-Systems and Robotics, Volume 8, Issue 1, January/December 2026.
ABSTRACT With the rapid proliferation of unmanned aerial vehicles (UAVs) in the military, logistics and public safety sectors, the threat of illegal intrusion, information theft, and security breaches has increased. This paper provides a comprehensive review of recent developments in counter‐unmanned aerial vehicle (counter‐UAV) systems, focussing on ...
Lei Xing, Can Cui, Miao Wang, Chao Xu
wiley   +1 more source