Results 31 to 40 of about 3,233,370 (145)

Quantum Illumination at the Microwave Wavelengths [PDF]

, 2015
Quantum illumination is a quantum-optical sensing technique in which an entangled source is exploited to improve the detection of a low-reflectivity object that is immersed in a bright thermal background.
Barzanjeh, Shabir, Guha, Saikat, Pirandola, Stefano, Shapiro, Jeffrey H., Vitali, David, Weedbrook, Christian   +5 more
core   +4 more sources

Vision-Based Target Detection and Positioning Approach for Underwater Robots

IEEE Photonics Journal, 2023
The accurate target detection under different environmental conditions and the real-time target positioning are vital for the successful accomplishment of underwater missions of Remotely operated vehicles (ROVs).
Yanli Li, Weidong Liu, Le Li, Wenbo Zhang, Jingming Xu, Huifeng Jiao   +5 more
doaj   +1 more source

Length summation in noise [PDF]

, 2019
To investigate the effect of background noise on visual summation, we measured the contrast detection thresholds for targets with or without a white noise mask in luminance contrast. The targets were Gabor patterns placed at 3° eccentricity to either the
Chen, C-C., Tyler, C. W., Yeh, Y-H. C.
core   +1 more source

Wideband Waveform Design for Robust Target Detection

, 2014
Future radar systems are expected to use waveforms of a high bandwidth, where the main advantage is an improved range resolution. In this paper, a technique to design robust wideband waveforms for a Multiple-Input-Single-Output system is developed.
Panahi, Ashkan, Ström, Marie, Viberg, Mats   +2 more
core   +1 more source

A Floating Small Target Identification Method Based on Doppler Time Series Information

Remote Sensing
Traditional radar detection methods heavily rely on the signal-to-clutter ratio (SCR); a variety of feature-based detection methods have been proposed, providing a new way for radar detection and the recognition of weak targets.
Hengli Yu, Hao Ding, Zheng Cao, Ningbo Liu, Guoqing Wang, Zhaoxiang Zhang   +5 more
doaj   +1 more source

Online self-repair of FIR filters [PDF]

, 2003
Chip-level failure detection has been a target of research for some time, but today's very deep-submicron technology is forcing such research to move beyond detection.
Benso, Alfredo, Di Carlo, Stefano, Di Natale, Giorgio, Prinetto, Paolo Ernesto   +3 more
core   +1 more source

Sea-detecting Radar Experiment and Target Feature Data Acquisition for Dual Polarization Multistate Scattering Dataset of Marine Targets

Leida xuebao, 2023
Marine target detection and recognition depend on the characteristics of marine targets and sea clutter. Therefore, understanding the essential features of marine targets based on the measured data is crucial for advancing target detection and ...
Jian GUAN, Ningbo LIU, Guoqing WANG, Hao DING, Yunlong DONG, Yong HUANG, Kaixiang TIAN, Mengyu ZHANG   +7 more
doaj   +1 more source

Dolphin-inspired target detection for sonar and radar

, 2014
Gas bubbles in the ocean are produced by breaking waves, rainfall, methane seeps, exsolution, and a range of biological processes including decomposition, photosynthesis, respiration and digestion.
Leighton, T.G., White, P.R.
core   +1 more source

A Dynamic False Alarm Rate Control Method for Small Target Detection in Non-Stationary Sea Clutter

Journal of Marine Science and Engineering
Sea surface non-stationarity poses significant challenges to sea-surface small target detection, particularly in maintaining a stable false alarm rate (FAR).
Yunlong Dong, Jifeng Wei, Hao Ding, Ningbo Liu, Zheng Cao, Hengli Yu   +5 more
doaj   +1 more source

Multi-target detection and recognition by UAVs using online POMDPs [PDF]

, 2013
This paper tackles high-level decision-making techniques for robotic missions, which involve both active sensing and symbolic goal reaching, under uncertain probabilistic environments and strong time constraints.
Lesire, Charles, Ponzoni Carvalho Chanel, Caroline, Teichteil-Königsbuch, Florent   +2 more
core   +1 more source