Results 51 to 60 of about 17,836 (241)
Radar sounding using the Cassini altimeter waveform modeling and Monte Carlo approach for data inversion observations of Titan's seas [PDF]
, 2016 Recently, the Cassini RADAR has been used as a sounder to probe the depth and constrain the composition of hydrocarbon seas on Saturn's largest moon, Titan.
Hayes, A. +5 more
core +1 more source
LPI Optimization Framework for Radar Network Based on Minimum Mean-Square Error Estimation
Entropy, 2017 This paper presents a novel low probability of intercept (LPI) optimization framework in radar network by minimizing the Schleher intercept factor based on minimum mean-square error (MMSE) estimation.
Ji She +3 more
doaj +1 more source
Group Iterative Spectrum Thresholding for Super-Resolution Sparse Spectral Selection [PDF]
, 2013 Recently, sparsity-based algorithms are proposed for super-resolution spectrum estimation. However, to achieve adequately high resolution in real-world signal analysis, the dictionary atoms have to be close to each other in frequency, thereby resulting ...
Li, Huanghuang +3 more
core +1 more source
The elimination of broker voting in director elections [PDF]
, 1980 In 2009, the Securities and Exchange Commission (SEC) reformed shareholder voting by eliminating uninstructed broker voting in director elections. We use this reform as a quasi-natural experiment to assess the value of shareholder empowerment.
Akyol, Ali C. +2 more
core +25 more sources
IET Radar, Sonar & Navigation, 2021 Recent years have seen a steady convergence of Radar and Communications band Radio Frequency (RF) transceiver systems. Not only have Communications systems colonised large swathes of previously allocated Radar bands but there is also a convergence of ...
William Coventry +3 more
doaj +1 more source
Mutual interference and low probability of interception capabilities of noise radar
IET Radar, Sonar & Navigation, 2008 Recently, there has been considerable interest in noise radar over a wide spectrum of applications, such as through-wall surveillance, tracking, Doppler estimation, polarimetry, interferometry, ground penetrating or subsurface profiling, detection, synthetic aperture radar (SAR) imaging, inverse SAR imaging, foliage penetration imaging etc.
T. Thayaparan +2 more
openaire +1 more source
Research on radar task scheduling with power constraint
The Journal of Engineering, 2019 Aiming at the task-scheduling problem of phased array radar subject to low probability of intercept (LPI), the radar radiation power constraint and power agility features are analysed.
Yong-Kun Wang, Shi-You Zheng
doaj +1 more source
Defence Technology, 2023 Nyquist Folding Receiver (NYFR) is a perceptron structure that realizes a low probability of intercept (LPI) signal analog to information. Aiming at the problem of LPI radar signal receiving, the time domain, frequency domain, and time-frequency domain ...
Tao Wan, Kai-li Jiang, Hao Ji, Bin Tang
doaj +1 more source
Critical rainfall conditions for the initiation of torrential flows: results from the Rebaixader catchment (Central Pyrenees) [PDF]
, 2016 Torrential flows like debris flows or debris floods are fast movements formed by a mix of water and different amounts of unsorted solid material. They generally occur in steep torrents and pose high risk in mountainous areas.
Abanco Martínez de Arenzana, Claudia +3 more
core +2 more sources
LPI Radar Detection Based on Deep Learning Approach with Periodic Autocorrelation Function
Sensors, 2023 In electronic warfare systems, detecting low-probability-of-intercept (LPI) radar signals poses a significant challenge due to the signal power being lower than the noise power.
Do-Hyun Park +3 more
doaj +1 more source