Results 11 to 20 of about 93,870 (317)

Theoretical Modeling and Experimental Study on Low-Altitude Slow-Small Target (LSS) Detection Based on Broadband Spectral Modulation Imaging [PDF]

open access: yesSensors
The detection of low-altitude slow-small (LSS) targets, such as drones, is challenged by their small radar cross-section (RCS) and low signal-to-clutter ratio (SCR), resulting in short effective range and susceptibility to background clutter in complex ...
Dongliang Li   +4 more
doaj   +2 more sources

Frequency-Agility-Based Neural Network with Variable-Length Processing for Deceptive Jamming Discrimination [PDF]

open access: yesSensors
With the booming development of the low-altitude economy and the widespread application of Unmanned Aerial Vehicles (UAVs), integrated sensing and communication (ISAC) technology plays an increasingly pivotal role in intelligent communication networks ...
Wei Gong   +4 more
doaj   +2 more sources

Threat Assessment Method of Low Altitude Slow Small (LSS) Targets Based on Information Entropy and AHP

open access: yesEntropy, 2021
In order to deal with the new threat of low altitude slow small (LSS) targets in air defense operations and provide support for LSS target interception decision, we propose a simple and reliable LSS target threat assessment method. Based on the detection
Ruining Luo   +3 more
doaj   +3 more sources

A Software-Defined Radar for Low-Altitude Slow-Moving Small Targets Detection Using Transmit Beam Control [PDF]

open access: goldRemote Sensing, 2023
Low-altitude slow-moving small (LSS) targets are defined as flying at altitudes less than 1000 m with speeds less than 55 m/s and a radar crossing-section (RCS) less than 2 m2.
Lingping Cai   +7 more
doaj   +2 more sources

Radar multifrequency measurement of elevation angles of low-altitude targets above the sea using the ROOT-MUSIC method [PDF]

open access: diamondРадиофизика и электроника, 2020
Subject and Purpose. The article is devoted to the problem of precision radar measurements of target position data when a low-altitude target is above a rough sea.
Yu.A. Pedenko
doaj   +2 more sources

Fusion of Infrared and Visible Images for Remote Detection of Low-Altitude Slow-Speed Small Targets

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Detection of the low-altitude and slow-speed small (LSS) targets is one of the most popular research topics in remote sensing. Despite of a few existing approaches, there is still an accuracy gap for satisfying the practical needs. As the LSS targets are
Haijiang Sun   +6 more
doaj   +3 more sources

From mechanisms to therapeutics: molecular insights into gastrointestinal injury under high-altitude hypoxia [PDF]

open access: yesFrontiers in Microbiology
The extreme environmental conditions of a plateau have an important impact on the economic development of the area, including tourism and employment. High-altitude environments, characterized by hypoxia, low atmospheric pressure, and intense ultraviolet ...
Yonglu Yu   +3 more
doaj   +2 more sources

A Novel Recognition-Before-Tracking Method Based on a Beam Constraint in Passive Radars for Low-Altitude Target Surveillance [PDF]

open access: goldApplied Sciences
Effective means are urgently needed to identify non-cooperative targets intruding on airport clearance zones for the safety of low-altitude flights. Passive radars are an ideal means of low-altitude airspace surveillance for their low costs in terms of ...
Xiaomao Cao   +4 more
doaj   +2 more sources

Move-stop-move Target Tracking with Low-altitude Surveillance Radars

open access: greenLeida xuebao, 2022
Low-altitude small targets, represented by rotor unmanned aerial vehicles, always adopt slow move-and-stop strategy or employ an obstacle blocking strategy to avoid radar detection and conduct point-and-point strikes or interference on important ...
Kaiming XU   +4 more
doaj   +2 more sources

USING THE MATRIX PENCIL METHOD FOR RADAR MEASUREMENT OF AN ELEVATION ANGLE OF LOW-ALTITUDE TARGETS OVER AGITATED SEA [PDF]

open access: diamondРадиофизика и электроника, 2018
The paper focuses on the problem of increasing the accuracy of radar measurements of the elevation angle of the low-altitude targets over the sea. The Matrix Pencil method, as one of the means to resolve this problem, is studied in the paper. This method
Yu. A. Pedenko
doaj   +2 more sources

Home - About - Disclaimer - Privacy