Results 11 to 20 of about 100,068 (284)
A Soft-Kill Reinforcement Learning Counter Unmanned Aerial System (C-UAS) With Accelerated Training
IEEE Access, 2023 In recent years, unmanned aerial vehicles (UAVs) have gained significant popularity and are used for many applications, from entertainment to surveillance and the modern battlefield.
Douglas Lopes Da Silva +3 more
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Radar Position Estimation by Sequential Irradiation of ESM Receivers
Sensors, 2021 In this article, a new technique for determination of 2D signal source (target) position is proposed. This novel approach, called the Inscribed Angle (InA), is based on measuring the time difference of sequential irradiation by the main beam of the ...
Petr Hubáček +2 more
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Sensors, 2022 In this paper, a new method for detecting and estimating the parameters of a binary phase shift keying (BPSK) signal, based on a cross-correlation function, is proposed. The proposed method consists of two stages.
Van Minh Duong +4 more
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Applied Sciences, 2021 Source enumeration is an important procedure for radio direction-of-arrival finding in the multiple signal classification (MUSIC) algorithm. The most widely used source enumeration approaches are based on the eigenvalues themselves of the covariance ...
Yunseong Lee +7 more
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Parameter Estimation of LFM Signal in Low Signal-to-Noise Ratio Using Cross-Correlation Function
Advances in Electrical and Electronic Engineering, 2021 The pulse with intra-pulse modulation plays an important role in the design of radar systems. The first class of the signals type is the linear frequency modulation technique.
Minh Van Duong +4 more
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Narrow band space scanning two-dimensional linear frequency diverse array radar
The Journal of Engineering, 2019 Two–dimensional (2D) linear frequency diverse array (FDA) concept is extended to scan a 2D wide angular sector. This is achieved by highly unequal frequency increments in orthogonal 2D directions of the array.
Ramazan Çetiner, Altunkan Hizal
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Prospects of FMCW-based frequency diverse array radar
The Journal of Engineering, 2019 The linear frequency modulated (LFM) frequency modulated continuous wave (FMCW)-based frequency diverse array (FDA) radar concept is investigated in detail. The radar operates as a linear pulsed FMCW/FDA in the transmission (TX) mode while it operates as
Ramazan Çetiner +3 more
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Violence and warfare in prehistoric Japan [PDF]
, 2017 The origins and consequences of warfare or largescale intergroup violence have been subject of long debate. Based on exhaustive surveys of skeletal remains for prehistoric hunter-gatherers and agriculturists in Japan, the present study examines levels of
Arimatsu, Yui +5 more
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Mathematical analyses of the GPS receiver interference tolerance and mean time to loss lock
Defence Technology, 2019 In this paper, novel mathematical expressions are derived for the Global Positioning System (GPS) receiver interference tolerance in the presence of different types of interference signals such as: continuous wave interference, narrowband interference ...
Ehab M. Shaheen, Sherif A. Elgamel
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The Power Gain Difference Method Analysis
Sensors, 2020 In this paper, we propose a new approach to passively locate the 3D position of a signal source. This novel technique, called the power gain difference (PGD), is based only on measuring the received signal strength (RSS) with multiple sensors deployed in
Jiří Veselý +2 more
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