Results 111 to 120 of about 1,673 (220)

Results of the Apogee-Raising Campaign of the Magnetospheric Multiscale Mission [PDF]

open access: yes
This paper describes the apogee-raising campaign of the Magnetospheric Multiscale mission, where the spacecraft increased their apogee radii from 12 to 25 Earth radii in a total of 98 maneuvers. These maneuvers included an initial formation resize set to
Hollister, Jacob   +3 more
core   +1 more source

A Distributed Low-Degree-of-Freedom Aerial Target Localization Method Based on Hybrid Measurements

open access: yesRemote Sensing
For real-time detection scenarios such as battlefield reconnaissance and surveillance, where high positioning accuracy is required and receiving station resources are limited, we propose an innovative distributed aerial target localization method with ...
Xiaoshuang Jiao   +6 more
doaj   +1 more source

Commissioning MMS: Challenges and Lessons Learned [PDF]

open access: yes
This paper discusses commissioning of NASA's Magnetospheric MultiScale (MMS) Mission. The mission includes four identical spacecraft with a large, complex set of instrumentation.
Gramling, Cheryl   +4 more
core   +1 more source

Kalman filtering of FDOA/TDOA missile tracking system

open access: yes, 2001
The accuracy of a tracking system designed to determine the time, space and position information (TSPI) of an airborne missile by detecting its telemetry signal at a number of receiver sites is investigated. Doppler frequency measurements are converted to range differences between the missile and receiver sites, whose locations are known in three ...
openaire   +1 more source

Hybrid TDOA/FDOA and track optimization of UAV swarm based on A-optimality

open access: yesJournal of Systems Engineering and Electronics, 2023
Li Hao   +3 more
semanticscholar   +1 more source

Target localization method based on semi-definite relaxation with frequency difference of arrival

open access: yesDianxin kexue
The use of frequency measurements to achieve target positioning is characterized by low cost and high reliability. Using only frequency difference of arrival (FDOA) measurements, a precise localization method for static target position was proposed.
MAO Xiaoting, WU Xiaoping
doaj   +2 more sources

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