Results 71 to 80 of about 968,206 (211)

A Minimal Solution for Binocular Camera Relative Pose Estimation Based on the Gravity Prior

open access: yesRemote Sensing
High-precision positioning is the foundation for the functionality of various intelligent agents. In complex environments, such as urban canyons, relative pose estimation using cameras is a crucial step in high-precision positioning. To take advantage of
Dezhong Chen   +3 more
doaj   +1 more source

Transient response measurements on a satellite system [PDF]

open access: yes, 1977
A set of instruments designed to detect the occurance of electrical breakdown was flown on a synchronous-orbit satellite. The LeRC sensors were installed on cables inside the vehicle. Accordingly, they respond to signals coupled into the satellite wiring
Adamo, R. C., Nanevicz, J. E.
core   +1 more source

Secure Satellite Communication Systems Design with Individual Secrecy Rate Constraints

open access: yes, 2011
In this paper, we study multibeam satellite secure communication through physical (PHY) layer security techniques, i.e., joint power control and beamforming.
Han, Zhu   +3 more
core   +1 more source

The AMSC network control system [PDF]

open access: yes
The American Mobile Satellite Corporation (AMSC) is going to construct, launch, and operate a satellite system in order to provide mobile satellite services to the United States. AMSC is going to build, own, and operate a Network Control System (NCS) for
Garner, William B.
core   +1 more source

Satellite monitoring systems

open access: yesEos, Transactions American Geophysical Union, 1979
A circular describing satellite telemetry systems that can collect and transmit environmental data from remote regions of the world to regional resource information centers has been published by the U.S. Geological Survey.The 21‐page circular attempts to answer the most common questions asked about various satellite data collection systems and ...
openaire   +1 more source

An Intelligent Framework for Cyber-Physical Satellite System and IoT-Aided Aerial Vehicle Security Threat Detection. [PDF]

open access: yesSensors (Basel), 2023
Alturki N   +7 more
europepmc   +1 more source

Market scenarios and alternative administrative frameworks for US educational satellite systems [PDF]

open access: yes
Costs and benefits of developing an operational educational satellite system in the U.S. are analyzed. Scenarios are developed for each educational submarket and satellite channel and ground terminal requirements for a large-scale educational ...
Morgan, R. P.   +2 more
core   +1 more source

Specific construction tests [PDF]

open access: yes, 1980
The technical feasibility of the Satellite Power System (SPS) is discussed. The development of feasible operational concepts and conceptualization of specific construction tasks are examined. The logic flow of functional analyses of both the rectenna and
Mcrae, W. V., Jr.
core   +1 more source

S-cubed-a spacecraft and experiment description [PDF]

open access: yes
The launch of the Explorer 45 satellite and the instruments installed in the satellite are discussed. The scientific objectives of the first mission, the orbital parameters, and the capabilities of the data system are examined.
Hoffman, R. A., Longanecker, G. W.
core   +1 more source

A Minimal Solution Estimating the Position of Cameras with Unknown Focal Length with IMU Assistance

open access: yesDrones
Drones are typically built with integrated cameras and inertial measurement units (IMUs). It is crucial to achieve drone attitude control through relative pose estimation using cameras. IMU drift can be ignored over short periods.
Kang Yan   +4 more
doaj   +1 more source

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