Results 31 to 40 of about 1,161 (185)

1D Convolutional Neural Networks Versus Automatic Classifiers for Known LPI Radar Signals Under White Gaussian Noise

IEEE Access, 2020
In this study we analyze the signal classification performances of various classifiers for deterministic signals under the additive White Gaussian Noise (WGN) in a wide range of signal to noise ratio (SNR) levels (-40dB to +20dB).
Alper Yildirim, Serkan Kiranyaz
doaj   +1 more source

Stability Evaluation and Parametric Optimization of Coal‐Concrete Composite Bearing Systems Under Mine‐Water‐Induced Deterioration: Experiments and FEINN Analysis

Energy Science &Engineering, EarlyView.
Mine‐water immersion tests reveal pronounced coal weakening (vs. minor concrete degradation), identifying coal pillars as the stability‐limiting component in composite dams. A coupled FEINN framework quantifies extreme‐pressure stability and ranks multi‐parameter designs via a normalized multi‐indicator scheme, enabling optimized dam configuration for ...
He Wen, Hongchuan Dai, Guixin Zhang, Pengzhe Li, Tong Yang, Cang Gong, Renbo Gao   +6 more
wiley   +1 more source

Integrating human acceptance into habitat suitability models for snow leopards in northern Bhutan

People and Nature, EarlyView.
Abstract Habitat suitability models are commonly used to assess the potential distribution of large carnivores by identifying ecologically favourable areas. However, these models often overlook human dimensions, such as conflict and acceptance, which can lead to overestimation of species ranges and a mismatch between predicted and actual distributions.
Dechen Lham, Dominik M. Behr, Stefan Sommer, Gabriele Cozzi, Arpat Ozgul   +4 more
wiley   +1 more source

On The Identification of Low Probability of Intercept Radar Signals using Time-Frequency Signal Analysis and Processing [PDF]

Journal of Electrical and Electronics Engineering, 2019
Low probability of intercept (LPI) radar signals are gaining recognition in the field of electronic warfare (EW) due to their unique characteristics. This paper presents an alternative method of analyzing and identifying these LPI signals using Wigner ...
AHMAD Ashraf Adamu, AJIYA Mohammed, YUSUF Zainab Yunusa, AIROBOMAN Abel Ehimen   +3 more
doaj  

Evaluating Testability of Permafrost Models Through Physical and Thermal Testing in Complex Mountain Terrain, Yukon, Canada

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Due to its subsurface nature, permafrost cannot be directly observed with the naked eye or optical remote sensing. Consequently, accurately describing its distribution and thermal state is challenging. This is especially true in vast, remote environments, where obtaining comprehensive field data is demanding or improbable.
Ria Nicholson, Philip P. Bonnaventure, Nick C. Noad, Madeleine C. Garibaldi, Rabecca Thiessen, Will Kochtitzky   +5 more
wiley   +1 more source

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

Journal of Field Robotics, EarlyView.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang, Hao Zhou, Dalin Zhou, Zhaojie Ju   +3 more
wiley   +1 more source

Examining the Role of Economic Complexity and Climate Readiness in the Climate‐Fishing Nexus

Sustainable Development, EarlyView.
ABSTRACT This paper investigates the climate‐fisheries association in Gulf Cooperation Council (GCC) nations from 1999 to 2022. A key objective is to explore the role of both the economic complexity index (ECI) and the climate readiness factor (READ) in the climate‐fishing nexus.
Mohamed Sami Ben Ali, Alanoud Al‐Maadid, Hicham Ayad   +2 more
wiley   +1 more source

From armed roots to airline routes in South America: A dual imprinting perspective

Strategic Management Journal, EarlyView.
Abstract Reserch Summary We propose that founding partner relationships can leave distinct imprints on organizations that differ in durability and in how they respond to subsequent changes involving the founding partner. Examining South American airlines founded between 1919 and 1984, we argue and find that such relationships simultaneously create an ...
Kunyuan Qiao, Shon R. Hiatt, Wesley D. Sine   +2 more
wiley   +1 more source

Adaptive Detection Algorithm With Dynamic Dual-Threshold for Low Probability of Intercept Radar Signals and Its FPGA Implementation

IEEE Access
This paper presents an adaptive signal detection algorithm with dynamic dual-threshold for low probability of intercept (LPI) radar signals in complex electromagnetic environments.
Xiaoji Wei, Bilu Luo, Chunfang Gao
doaj   +1 more source

Fuzzy Chance-constrained Programming Based Security Information Optimization for Low Probability of Identification Enhancement in Radar Network Systems [PDF]

Radioengineering, 2015
In this paper, the problem of low probability of identification (LPID) improvement for radar network systems is investigated. Firstly, the security information is derived to evaluate the LPID performance for radar network.
C. G. Shi, F. Wang, J.J. Zhou, J. Chen
doaj