902 resources related to Military satellites
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2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting
The joint meeting is intended to provide an international forum for the exchange of information on state of the art research in the area of antennas and propagation, electromagnetic engineering and radio science
The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems including the latest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation and more. The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.
All fields of satellite, airborne and ground remote sensing.
To promote awareness, understanding, advancement and application of ocean engineering and marine technology. This includes all aspects of science, engineering, and technology that address research, development, and operations pertaining to all bodies of water. This includes the creation of new capabilities and technologies from concept design through prototypes, testing, and operational systems to sense, explore, understand, develop, use, and responsibly manage natural resources.
Theoretical advances, applications, and ideas in the fields of Information Sciences and Systems
The IEEE Aerospace and Electronic Systems Magazine publishes articles concerned with the various aspects of systems for space, air, ocean, or ground environments.
Experimental and theoretical advances in antennas including design and development, and in the propagation of electromagnetic waves including scattering, diffraction and interaction with continuous media; and applications pertinent to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques.
The theory, design and application of Control Systems. It shall encompass components, and the integration of these components, as are necessary for the construction of such systems. The word `systems' as used herein shall be interpreted to include physical, biological, organizational and other entities and combinations thereof, which can be represented through a mathematical symbolism. The Field of Interest: shall ...
IEEE Communications Magazine was the number three most-cited journal in telecommunications and the number eighteen cited journal in electrical and electronics engineering in 2004, according to the annual Journal Citation Report (2004 edition) published by the Institute for Scientific Information. Read more at http://www.ieee.org/products/citations.html. This magazine covers all areas of communications such as lightwave telecommunications, high-speed data communications, personal communications ...
Each tutorial reviews currents communications topics in network management and computer and wireless communications. Available tutorials, which are 2.5 to 5 hours in length contains the original visuals and voice-over by the presenter. IEEE Communications Surveys & Tutorials features two distinct types of articles: original articles and reprints. The original articles are exclusively written for IEEE Communications Surveys & Tutorials ...
OCEANS '85 - Ocean Engineering and the Environment, 1985
Since 1960, we have had a space platform, either orbiting the Earth or seemingly fixed in space, using telescopes and radars to collect global environmental information in very short periods of time. These new systems permit observations of great accuracy and on-time scales consistent with environmental changes that are important to marine users. Many R&D satellites have already proved the ...
2009 International Conference on Computational Intelligence and Software Engineering, 2009
Because of the features of chaos sequences, a novel image position scrambling method, which is called new chaos transform, is firstly presented. And a practical image encryption algorithm based on 2-D wavelet transform and chaos transform is put forward. Three steps are included in our algorithm. Firstly, to decompose the image by 2-D wavelet-transform and get four sub-images. Secondly, to ...
2010 International Conference on Communications and Mobile Computing, 2010
A new method has been proposed for assessing availability of satellite navigation system. Software has been compiled to simulate BeiDou-2 (BD-2) constellation with 12 satellites and GPS constellation. Based on 27 stations of Crustal Moment Observation Network of China, satellite visibility, dilution of precision (DOP), and availability of BD-2, GPS and integrated BD-2/GPS are calculated and analyzed in detail. Simulation ...
1995 IEEE Aerospace Applications Conference. Proceedings, 1995
The author discusses future developments in military Space technology and its utilisation.<<ETX>>
2008 2nd International Symposium on Systems and Control in Aerospace and Astronautics, 2008
The objective of this work is to solve the problems of On-board Computer (OBC) in Micro-satellite. With the limit of size and weight, and the requirement of multifunction and high-performance, itpsilas almost impossible to design an eligible Micro-satellite OBC by regular methods. To address this issue, this paper researches reconfiguration technique, and proposes one OBC design based on it. The ...
Geothermal Energy in the Military
IMS 2012 Microapps - Custom OFDM Validation of Wireless/Military DSP Algorithms and RF Components Daren McClearnon, Jin-Biao Xu, Agilent EEsof
The Full Spectrum: COSMIC Satellites Use GPS to Forecast Weather
Group on Earth Observations(GEOSS): Applications
IEEE Entrepreneurship @ Hello Tomorrow Global Summit: Bluefield Tech
Inside Kiva Systems - Warehouse Robots at Work
How To Build a Robotic Fly
Humanoid Robot Puts Telepresence on Wheels
Q-Band CMOS Transmitter System-on-Chip - Tim Larocca - RFIC Showcase 2018
Promise of Point of Care Technologies - Keynote Geoffrey Ling - IEEE EMBS at NIH, 2019
Honda U3-X Personal Mobility Device in NY
Safety Synergies and Engineering Opportunities Complex Systems in Life Sciences
Oral History: Jerry Minter
Defense Department's Crusher Field Demonstration
Detecting a GPS Spoof from a Superyacht
IROS TV 2019- Macau- Episode 1- Robots Connecting People
iPhone-flown drone carries cameras
Large UAS Support: Non Terrestrial Networks - Dallas Brooks - B5GS 2019
Since 1960, we have had a space platform, either orbiting the Earth or seemingly fixed in space, using telescopes and radars to collect global environmental information in very short periods of time. These new systems permit observations of great accuracy and on-time scales consistent with environmental changes that are important to marine users. Many R&D satellites have already proved the utility of space-based marine observations. Beginning in 1987, a large number of foreign and domestic operational marine remote sensing systems will be placed in space. This planned capability represents a $1.5B investment in systems that will usher in an important era of capabilities. The impact will be similar to the extention of communications industries in space. This paper discusses each of the emerging satellite systems and their application horizon.
Because of the features of chaos sequences, a novel image position scrambling method, which is called new chaos transform, is firstly presented. And a practical image encryption algorithm based on 2-D wavelet transform and chaos transform is put forward. Three steps are included in our algorithm. Firstly, to decompose the image by 2-D wavelet-transform and get four sub-images. Secondly, to scramble the low frequency sub-image and the high frequency sub- image by chaos transform on same keys. Finally, the encrypted image is obtained by inverse wavelet transform of the scrambling coefficients. Experiment result shows that the encrypted image and the original image have good identity. And our algorithm has higher safe performance with satisfactory experiment results.
A new method has been proposed for assessing availability of satellite navigation system. Software has been compiled to simulate BeiDou-2 (BD-2) constellation with 12 satellites and GPS constellation. Based on 27 stations of Crustal Moment Observation Network of China, satellite visibility, dilution of precision (DOP), and availability of BD-2, GPS and integrated BD-2/GPS are calculated and analyzed in detail. Simulation results reveal that the visibility of BD-2 is superior to that of GPS and the variation of DOP of the former is more stable in China. The system availability of BD-2 is superior to that of GPS. And the integrated BD-2/GPS system is superior to any single system in all respects of positioning performance. Without other aided technical measures, GPS is insufficient for the requirement of availability of the required navigation performance (RNP), and BD-2 and integrated BD-2/GPS can meet the requirement of RNP under some conditions.
The author discusses future developments in military Space technology and its utilisation.<<ETX>>
The objective of this work is to solve the problems of On-board Computer (OBC) in Micro-satellite. With the limit of size and weight, and the requirement of multifunction and high-performance, itpsilas almost impossible to design an eligible Micro-satellite OBC by regular methods. To address this issue, this paper researches reconfiguration technique, and proposes one OBC design based on it. The reconfigurable OBC can achieve the multifunction and high processing ability, and there are several measures to ensure the reliability.
The need to operate DoD communications networks on both military and commercial satellites requires an integrated management system which can plan, control and monitor the warfighter's Earth and space segment assets. This paper describes a management system architecture, suitable for the 21st century, which can be adapted to the defense information infrastructure control center (DIICC) hierarchy. The paper provides an overview of the differences between current military and commercial management systems, presents an operational concept for a future integrated system, lists functional requirements, and discusses enterprise and database management issues. Although the paper deals with SHF satellite systems, many of the concepts presented can be extended to UHF (225 MHz to 400 MHz) and EHF (44/20 GHz) satellite systems. The SHF bands include military satellites operating at X-band (8/7 GHz) and commercial satellites operating at C-band (6/4 GHz) and Ku-band (14/11 or 12 GHz).
The problems to use radionavigational GPS receivers for frequency standard characteristics control are discussed. It is shown, that such problems can be solved for some conditions with help of low-cost GPS receiver SVeeSix-CM3. The results of experimental researchers, which confirm this conclusion are presented.
The satellite communication world is rapidly evolving towards an extensive diversification of offered services. Under the pressure of public or private demand, commercial market growth incites investors, service providers, operators and system designers to elaborate innovative satcom projects capable of satisfying a wide range of potential users. It seems unthinkable that the military community shouldn't seek to take advantage of the attractive capabilities offered by these emerging systems either as standard subscribers, or as specific users. The paper presents one of these new projects, named EAST (Euro African Satellite Telecommunication), developed under an initiative of Matra Marconi Space and destinated to offer mobile and fixed communication services. After a description of the system architecture and performance, what the military may expect from the system is discussed.
High-efficiency multijunction cells have been fabricated for use in space concentrator modules at concentrations of 8-15 suns. Modeling and optimization efforts to modify Spectrolab's 1-sun cells for use at concentration are described. An experimental population of 200 cells of 3.5 cm/sup 2/ aperture area (4.2 cm/sup 2/ total area) grown using a variety of conditions had an average efficiency of 29.6% at 8 suns AMO. This population included several cells which exceeded 31% aperture area efficiency and 32% active area efficiency. A Spectrolab cell was measured in ENTECH's mini-concentrator module (at approximately 8 suns) with a combined lens/cell mini-module efficiency of 30.8% under outdoor sunlight, which-is, to our knowledge, the first time the 30% barrier has been broken for such a module.
This paper presents in the first part a short overview of the Global Positioning System (shortly GPS), used to explain the software approach described in the paper's body. This software approach makes possible to emphasize the main aspects of signal processing blocks in GPS receiver, illustrating the entire process involved in coordinates calculation. The software model is implemented and tested in Matlab, but most components are proven to be functional in Octave. The paper describes the most important blocks and present results of simulation.
This standard defines the interdisciplinary tasks that are required throughout a systemﾒs life cycle to transform stakeholder needs, requirements, and constraints into a system solution. This standard is intended to guide the development of systems for commercial, government, military, and space applications. The information applies to a project within an enterprise that is responsible for developing a product design and ...