Results 81 to 90 of about 1,023 (184)

Integration of attention mechanism and CNN-BiGRU for TDOA/FDOA collaborative mobile underwater multi-scene localization algorithm

Complex & Intelligent Systems
The aim of this study is to address the issue of TDOA/FDOA measurement accuracy in complex underwater environments, which is affected by multipath effects and variations in water sound velocity induced by the challenging nature of the underwater ...
Duo Peng, Ming Shuo Liu, Kun Xie
doaj   +1 more source

Detection of PUE- Attack in Cognitive Radio Networks [PDF]

, 2015
Cognitive Radios (CR) are the radios that are widely used in the wireless networks. It is a software based air interface network . Due to the air interface, the probability of attacks increases.
, Megha Chopra, Sonika Soni
core   +2 more sources

Finding optimal trajectory points for TDOA/FDOA geo-location sensors

2009 43rd Annual Conference on Information Sciences and Systems, 2009
In emitter geo-location estimation systems, it is well known that the geometry between sensors and the emitter can seriously impact the accuracy of the location estimate. Here we consider a case where a set of sensors is tasked to perform a sequence of location estimates on an emitter as the sensors progress throughout their trajectories.
Ran Ren, Mark L. Fowler, N. Eva Wu
openaire   +1 more source

Navigation Operations for the Magnetospheric Multiscale Mission [PDF]

The Magnetospheric Multiscale (MMS) mission employs four identical spinning spacecraft flying in highly elliptical Earth orbits. These spacecraft will fly in a series of tetrahedral formations with separations of less than 10 km.
Carpenter, Russell, Farahmand, Mitra, Long, Anne   +2 more
core   +1 more source

Основні засади історичного та теоретичного музикознавства [PDF]

, 2019
Робоча програма навчальної дисципліни для аспірантів спеціальності 025 Музичне мистецтво освітньо-наукового рівня «доктор філософії» освітньо-наукової програми 025 Музичне ...
Лігус, Ольга Марківна
core  

Configuration Optimization of Renewable Energy Systems Based on FDOA

Zhongguo dianli
With the increasing demand for clean energy worldwide, how to optimize the renewable energy system to reduce the dependence on the traditional power grid is becoming increasingly important.
Lin ZHAO, Shangmin GUO, Wenying SHANG, Jian DONG, Wei WANG   +4 more
doaj   +1 more source

Sensitivity of Magnetospheric Multi-Scale (MMS) Mission Navigation Accuracy to Major Error Sources [PDF]

, 2011
The Magnetospheric Multiscale (MMS) mission consists of four satellites flying in formation in highly elliptical orbits about the Earth, with a primary objective of studying magnetic reconnection. The baseline navigation concept is independent estimation
Car[emter. Russell, Long, Anne, Olson, Corwin   +2 more
core   +1 more source

Forest Fire Discrimination Based on Angle Slope Index and Himawari-8

Remote Sensing
In the background of high frequency and intensity forest fires driven by future warming and a drying climate, early detection and effective control of fires are extremely important to reduce losses.
Pingbo Liu, Gui Zhang
doaj   +1 more source

Moving target positioning algorithm based on multidimensional scaling analysis from TDOA and FDOA with sensor uncertainties

Cogent Engineering
The problem of moving target localization from range and velocity difference measurements has attracted considerable attention in recent years. In this article, a novel weighted multidimensional scaling (MDS) algorithm is proposed to estimate the ...
Hesham Ibrahim Ahmed
doaj   +1 more source

Location Estimation of Beacon in MEOSAR System [PDF]

, 2020
This paper describes the satellite aided search and rescue system that provides services to save the lives at the distress or emergency regions.
H., Sowmya C., Srinivasaiah, H. C.
core   +1 more source