Results 111 to 120 of about 2,705,955 (242)

Adaptation dynamics of the quasispecies model

open access: yes, 2008
We study the adaptation dynamics of an initially maladapted population evolving via the elementary processes of mutation and selection. The evolution occurs on rugged fitness landscapes which are defined on the multi-dimensional genotypic space and have ...
C. Darwin   +9 more
core   +1 more source

Joint Design of LPI Transmit Waveform and Receive Beamforming Based on Neural Networks for FDA-MIMO

open access: yesLeida xuebao
Traditional Low Probability of Intercept (LPI) array radars that use phased array or Multiple-Input Multiple-Output (MIMO) systems face limitations in terms of controlling radiation energy only at specific angles and cannot achieve energy control over ...
Deshun LIU   +3 more
doaj   +1 more source

Classifying low probability of intercept radar using fuzzy artmap [PDF]

open access: yes, 2012
Electronic Support (ES) operations concern themselves with the ability to search for, intercept, track and classify threat emitters. Modern radar systems in turn aim to operate undetected by intercept receivers.
Potgieter, Pieter Frederick
core  

Intercept Behavior Analysis of Industrial Wireless Sensor Networks in the Presence of Eavesdropping Attack [PDF]

open access: yesarXiv, 2015
This paper studies the intercept behavior of an industrial wireless sensor network (WSN) consisting of a sink node and multiple sensors in the presence of an eavesdropping attacker, where the sensors transmit their sensed information to the sink node through wireless links.
arxiv  

Volume Doubling Condition and a Local Poincaré Inequality on Unweighted Random Geometric Graphs [PDF]

open access: yesarXiv, 2019
The aim of this paper is to establish two fundamental measure-metric properties of particular random geometric graphs. We consider $\varepsilon$-neighborhood graphs whose vertices are drawn independently and identically distributed from a common distribution defined on a regular submanifold of $\mathbb{R}^K$.
arxiv  

Time-frequency, bi-frequency detector analysis of noise technology radar [PDF]

open access: yes, 2006
Enemy integrated air defense systems (IADS) using low probability of intercept (LPI) emitters can cause significant problems for suppression of enemy air defense (SEAD) techniques.
Heuschel, Eugene R.
core  

Multi-User Multi-Carrier Differential Chaos Shift Keying Communication System

open access: yes, 2013
In this paper, a multi user Multi-Carrier Differential Chaos Shift Keying (MC-DCSK) modulation is presented. The system endeavors to provide a good trade-off between robustness, energy efficiency and high data rate, while still being simple.
Adouni, Sarra   +4 more
core   +1 more source

Guest Editorial: Advancements and future trends in noise radar technology

open access: yes
IET Radar, Sonar &Navigation, Volume 18, Issue 7, Page 983-985, July 2024.
Christoph Wasserzier   +4 more
wiley   +1 more source

Generative Deep Synthesis of MIMO Sensing Waveforms with Desired Transmit Beampattern [PDF]

open access: yesarXiv
This paper develops a generative deep learning model for the synthesis of multiple-input multiple-output (MIMO) active sensing waveforms with desired properties, including constant modulus and a user-defined beampattern. The proposed approach is capable synthesizing unique phase codes of on-the-fly, which has the potential to reduce interference ...
arxiv  

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