Results 21 to 30 of about 6,747,559 (262)

Parameter Estimation of LFM Signal in Low Signal-to-Noise Ratio Using Cross-Correlation Function

open access: yesAdvances 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
doaj   +1 more source

Direction finding of correlated sources in extremely low SNR environment [PDF]

open access: yesJournal of Engineering Science and Military Technologies
Direction-Finding (DF) in low Signal-to-Noise Ratio (SNR)environments presents challenges in accurate Angle-of-Arrival (AOA)estimation, resolution, and maximum detection range due to extrinsicsources and hardware imperfections, particularly when dealing ...
Osama Elkasrawi   +3 more
doaj   +1 more source

Prospects of FMCW-based frequency diverse array radar

open access: yesThe 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
doaj   +1 more source

A prototype rule based system for electronic warfare [PDF]

open access: yes, 1991
This thesis examines the feasibility of using an expert system to solve the threat identification problem in the radar signal environment. Such systems can be used to support the Electronic Warfare Officer (EWO) in decision- making.
Hsiung, Wen-Cheng
core   +2 more sources

Mathematical analyses of the GPS receiver interference tolerance and mean time to loss lock

open access: yesDefence 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
doaj   +1 more source

The Power Gain Difference Method Analysis

open access: yesSensors, 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
doaj   +1 more source

Naval Warfare Studies Institute Newsletter, 2022-01-27 [PDF]

open access: yes, 2022
Unnumbered issueMilitary leaders need intellectual agility to steer through the 21st century threat landscape.In this issue, we walk you through the critical thinking branch of the Naval Warfare Studies Institute at Naval Postgraduate School and how NPS ...

core   +2 more sources

Naval Warfare Studies Institute Newsletter, 2022-01-13 [PDF]

open access: yes, 2022
Unnumbered issueHappy New Year! In this issue, we walk you through the emerging technologies branch of the Naval Warfare Studies Institute at Naval Postgraduate School.

core   +2 more sources

Naval Warfare Studies Institute Newsletter, 2023-10-04

open access: yes, 2023
Happy New Fiscal Year! NPS, and the NWSI team particularly, has been working hard over the summer on several initiatives. In this newsletter, we update you on the latest Warfare Innovation Continuum and recent efforts by our Wargaming ...

core   +2 more sources

Rapid Prototyping of Reduced-Height Dielectric Lens with One-Take 3D Printing for Antenna Directivity Enhancement

open access: yesApplied Sciences, 2022
In this work, we present a method for designing a dielectric lens with a reduced height that is easily printed with one-take 3D printing. For the first time, we prove that the configuration of a printout made of resin material can be modified for ...
Wonkyo Kim   +4 more
doaj   +1 more source

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