Phones and other GPS-enabled devices pinpoint your location on Earth by contacting at least four satellites bearing atomic clocks. Each of these satellites provides a time stamp, and the system calculates your location based on the relative differences among those times. The accuracy of GPS Navigation is primary degraded due …
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Synchronizing modern electronic systems such as the Internet and GPS navigation is currently done using microwave atomic clocks that measure time based on the frequency of natural vibrations of cesium atoms. Those vibrations occur at microwave frequencies that can easily be used in electronic systems. Optical atomic clocks will …
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Emerging technologies such as space technology; 5G, Cloud computing, IoT, “big data” analytics, artificial intelligence, robotics, photonics, materials, nanotechnology; biotechnology; and quantum computing, have significant potential to create, significant social, economic, and military benefits. Therefore countries led by US, China and Russia are spending billions of dollars on them to gain …
Read More »Cloud computing is the delivery of different services through the Internet. Companies that provide cloud services enable users to store files and applications on remote servers and then access all the data via the Internet. Cloud computing is a popular option for people and businesses for a number of reasons …
Read More »The wearing of body armour provide troops an unparalleled advantage on the battlefield, improving survivability and reducing casualtiesis. It has also been very effective in reducing injuries and fatalities within the police force and correctional services. This protection comes at a price, however. U.S. ground troops today carry an …
Read More »High-throughput Satellite or HTS systems represent a new generation of satellite communications systems, that provide a significant increase in capacity than conventional communication satellites. They utilize frequency reuse and multiple spot beams to deliver vast throughput for the same amount of allocated orbital spectrum. The increase in capacity typically ranges from 2 …
Read More »Digital Signal Processors (DSP) take real-world signals like voice, audio, video, temperature, pressure, or position that have been digitized and then mathematically manipulate them. Signals need to be processed so that the information that they contain can be displayed, analyzed, or converted to another type of signal that may be …
Read More »Traditionally, the satellite industry has relied on geosynchronous earth orbit (GEO) satellites that take years to build and require very expensive launches to deliver them to orbit. Satellite networks using geosynchronous equatorial orbit (GEO) are effective at providing stationary coverage to a specific area, however, Latency issues due to the …
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A system is defined by NASA as a construct or collection of different elements that together produce results not obtainable by the elements alone. Systems Engineering (SE) is defined as: The process by which a customer’s needs are satisfied through the conceptualization, design, modeling, testing, implementation, and operation of a …
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Satellite communication systems consist of two main segments, the space segment and the earth or ground station. The ground station system coordinates the communication process with satellites in space. A communications satellite is an artificial satellite that relays and amplifies radio telecommunications signals via a transponder; it creates a communication …
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