The first-generation (1G) cellular wireless mobile system were analog and were based on frequency-division-multiple access (FDMA) technology. The second boost for the cellular industry came from the introduction of the second-generation (2G) digital technology standards, including Global System for Mobile (GSM), IS-136 (Time Division Multiple Access, TDMA), and Personal Digital …
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Millimeter waves are electromagnetic signals with frequencies ranging from 30 to 300 GHz that correspond to wavelengths of 10 to 1 mm in free space. Electromagnetic waves in the millimeter-wave band have attractive characteristics. One of their features is the wider usable frequency band compared with waves in the microwave …
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A dogfight, or dog fight, is an aerial battle between fighter aircraft, conducted at close range. Modern terminology for air-to-air combat is air combat maneuvering (ACM), which refers to tactical situations requiring the use of individual basic fighter maneuvers (BFM) to attack or evade one or more opponents. Fighter pilots …
Read More »An operating system is a computer program that supports a computer’s basic functions, and provides services to other programs (or applications) that run on the computer. The applications provide the functionality that the user of the computer wants or needs. The services provided by the operating system make writing the applications …
Read More »Artificial intelligence (AI) and additive manufacturing (AM) are both disruptive new technologies. AI has entered many aspects of our lives, but has not been fully realized in the world of AM. Because of the vast amount of data and the digital nature of the technology, AM offers tremendous opportunities in …
Read More »Militaries are facing complex operational and tactical environments such as the increasing challenge of non-state/lone actors; persistent rapid technological development along with its broad availability via the internet; and the advent and expansion of new domains of possible threat such as information systems, space, cyberspace, electronic warfare, and autonomous weapons. …
Read More »All modern personal computers including desktops, notebooks, smartphones, and tablets, are examples of general-purpose computers. General-purpose computing incorporates ‘Von Neumann’ approach, which states that an instruction fetch and a data operation cannot occur simultaneously. Therefore, being sequential machines, their performance is also limited. On the other hand, we have …
Read More »Quantum computing has the potential to create new machines that can vastly exceed the capabilities of today’s most powerful supercomputers. A quantum computer harnesses quantum mechanics to deliver huge leaps forward in processing power. Instead of the binary bits used by digital computers, quantum computers use qubits – subatomic particles …
Read More »The Product Requirements Document or PRD describes all aspects of a new idea required or desired to make its realization a success. The PRD is the bridge between the often vague project briefing and the highly detailed engineering implementation plan. It is also known as the Program Of Requirements (POR), …
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 …
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