Results 91 to 100 of about 1,023 (184)

Magnetospheric Multiscale Mission Navigation Performance During Apogee-Raising and Beyond [PDF]

open access: yes
The primary objective of the Magnetospheric Multiscale (MMS) Mission is to study the magnetic reconnection phenomena in the Earths magnetosphere. The MMS mission consists of four identical spinning spacecraft with the science objectives requiring a ...
Farahmand, Mitra   +4 more
core   +1 more source

A Review of Linear Multilateration Techniques and Applications

open access: yesIEEE Access
In multilateration, distances between an unknown location and several known points are used to determine the location of the unknown point. Papers on algorithms for multilateration, such as time of arrival (TOA), time difference of arrival (TDOA), and ...
Eric Widdison, David G. Long
doaj   +1 more source

A Look at the Recent Wireless Positioning Techniques With a Focus on Algorithms for Moving Receivers

open access: yesIEEE Access, 2016
Employment of ground-based positioning systems has been consistently growing over the past decades due to the growing number of applications that require location information where the conventional satellite-based systems have limitations.
Ashraf Tahat   +4 more
doaj   +1 more source

Temperatura do solo favorável para o início da semeadura do arroz irrigado no estado Rio Grande do Sul. [PDF]

open access: yes, 2011
Made available in DSpace on 2012-09-06T01:08:28Z (GMT). No. of bitstreams: 1 01.pdf: 1130017 bytes, checksum: 98e146889fe0cf4a1e639ca52f75883b (MD5) Previous issue date: 2011-03 ...
FERREIRA, J. S. A.   +3 more
core  

Conjunction Assessment Techniques and Operational Results from the Magnetospheric Multiscale Mission [PDF]

open access: yes
This paper will describe the results that have been obtained to date during the MMS mission concerning conjunction assessment. MMS navigation makes use of a weak-signal GPS-based system: this allows signals to be received even when MMS is flying above ...
Carpenter, Russell   +5 more
core   +1 more source

Satellite Search and Rescue Localization Technology based on Windowed CAF Estimation

open access: yesGuangtongxin yanjiu
【Objective】With the continuous development of satellite technology, the application of satellites to low coverage areas of ground information networks for personnel search and rescue is becoming increasingly popular.
ZHENG Chao, QU Dexin, ZHANG Gengxin
doaj  

Underwater Source Localization Using TDOA and FDOA Measurements With Unknown Propagation Speed and Sensor Parameter Errors

open access: yesIEEE Access, 2018
Underwater source localization problems are complicated and challenging: 1) the sound propagation speed is often unknown and the unpredictable ocean current might lead to the uncertainties of sensor parameters (i.e., position and velocity); 2) the ...
Bingbing Zhang   +3 more
doaj   +1 more source

Improved localization algorithm with FDOA measurements [PDF]

open access: yesProceedings of the 2nd Annual International Conference on Electronics, Electrical Engineering and Information Science (EEEIS 2016), 2017
Zhi-Jie Zheng   +3 more
openaire   +1 more source

Moving source geolocation algorithm and performance analysis using dual-satellites sequence measurements and calibration sources

open access: yesTongxin xuebao, 2015
The method for locating a moving source on earth using a sequence of time difference of arrival(TDOA)and frequency difference of arrival(FDOA)measurements pairs obtained by dual-satellites was presented in the presence of calibration sources with ...
Ding WANG, Li ZHANG, Ying WU
doaj   +2 more sources

Home - About - Disclaimer - Privacy