Results 31 to 40 of about 11,248 (224)

Stealth analysis and sensitivity calculation of ship air-intake grille

open access: yesZhongguo Jianchuan Yanjiu, 2019
[Objectives] Since the geometric parameters of the ship air-intake grilles are numerous,the calculation cost of radar wave stealth performance optimizing for all parameters is too high,and the geometric parameter sequences with high Radar Cross Section ...
Du Xiaojia, Ding Fan
doaj   +1 more source

Validation Of Naval Platform Electromagnetic Tools Via Model And Full-Scale Measurements [PDF]

open access: yes, 2004
Reliable EMC predictions are very important in the design of a naval platform's topside. Currently, EMC predictions of a Navy ship are verified by scale model and full-scale measurements.
Graaff, Jasper van der, Leferink, Frank
core   +2 more sources

Evaluation of Developing Ratio Frequency Stealth Radar System [PDF]

open access: yesAdvances in Computer Science Research, 2016
Aimed at evaluating ratio frequency stealth of weapon system. This paper briefly introduces the the ratio frequency stealth technology development history of radar system, points out how radar system realize its ratio frequency stealth ability, and gives the index of evaluating ratio frequency stealth capability of radar system.Finally, introduces the ...
Zhuangzhi Han, Chaoxuan Shang, Yang Zhao
openaire   +1 more source

On the use of AESA (Active Electronically Scanned Array) Radar and IRST (InfraRed Search&Track) System to Detect and Track Low Observable Threats [PDF]

open access: yesMATEC Web of Conferences, 2019
The radar has been indisputably the most important sensor in the battlefield, allowing early warning and tracking of air vehicles. Modern fighter ircraft employing AESA fire control radars are able to acquire and track targets at long ranges, in the ...
Gaitanakis George-Konstantinos   +2 more
doaj   +1 more source

Passive forward scatter radar based on satellite TV broadcast for air target detection: preliminary experimental results [PDF]

open access: yes, 2017
The focus of this paper is on the detection of airborne targets and on the estimation of their velocity by means of passive forward scatter radar systems based on the DVB-S as transmitter of opportunity.
Arcangeli, Andrea   +4 more
core   +1 more source

Ultrabroad Microwave Absorption Ability and Infrared Stealth Property of Nano-Micro CuS@rGO Lightweight Aerogels

open access: yesNano-Micro Letters, 2022
Developing ultrabroad radar-infrared compatible stealth materials has turned into a research hotspot, which is still a problem to be solved. Herein, the copper sulfide wrapped by reduced graphene oxide to obtain three-dimensional (3D) porous network ...
Yue Wu   +6 more
doaj   +1 more source

Ultra-Low Sidelobe Waveforms Design for LPI Radar Based on Joint Complementary Phase-Coding and Optimized Discrete Frequency-Coding

open access: yesRemote Sensing, 2022
In this paper, in order to reduce the probability of the radar waveform intercepted by the passive detection system, the time-bandwidth product of the radar waveform is increased, and the detection probability of the radar waveform to the target is ...
Yuxiao Song   +5 more
doaj   +1 more source

Research on electromagnetic scattering characteristics of flexible stealth material based on its 3D model

open access: yesAIP Advances, 2023
With the widespread adoption of flexible stealth materials (FSMs) in radar stealth application, understanding their electromagnetic scattering information has become increasingly crucial.
Xin Gao   +4 more
doaj   +1 more source

Spotting Suspicious Link Behavior with fBox: An Adversarial Perspective

open access: yes, 2014
How can we detect suspicious users in large online networks? Online popularity of a user or product (via follows, page-likes, etc.) can be monetized on the premise of higher ad click-through rates or increased sales.
Beutel, Alex   +3 more
core   +1 more source

Ultralow‐Frequency Epsilon‐Near‐Zero States in 3D‐Printed High‐Entropy Alloy Metacomposites for Ultra‐Thin Perfect RF Absorption

open access: yesAdvanced Materials, EarlyView.
Rozanov causality limit—a compulsive proportional thickness‐wavelength relationship (nd ∝ λ)—makes it challenging to develop perfect absorption with both thin thickness and low frequency. Herein, a cocktail effect in high‐entropy alloys (HEA) is crucially utilized for lowering plasma frequency to achieve epsilon‐near‐zero states, which finally enables ...
Peitao Xie   +7 more
wiley   +1 more source

Home - About - Disclaimer - Privacy