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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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September, 2022
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10 September
Global race for 5G for connected homes, autonomous vehicles and drones, smart cities and Military
Mobile communications systems have evolved through wireless technology innovation into 2G, 3G, and then 4G to keep pace with ever-increasing voice and data traffic. Every generation of wireless technology brought many improvements including speed enabling many new applications. 1G was analog cellular. 2G technologies, such as CDMA, GSM, and TDMA, …
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9 September
Massive MIMO key to delivering mobile 5G will move to extreme MIMO in 6G
The capacity of a wireless link is generally measured in bits per second per Hertz (b/s/Hz). The methods available to increase this capacity in a traditional Single Input, Single Output (SISO) wireless system are fairly limited: increase the bandwidth, allowing a corresponding increase in the bits per second, or increase …
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9 September
Reconfigurable intelligent surface (RIS) or Large Intelligent Surface (LIS) creating an intelligent electromagnetic environment for wireless communications
Reconfigurable intelligent surface (RIS)—known also as intelligent reflecting surface (IRS), and large intelligent surface (LIS)—is a programmable structure that can be used to control the propagation of electromagnetic (EM) waves by changing the electric and magnetic properties of the surface. These elements form a low-profile 2D reflecting or transmission array, …
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8 September
Earth stations on moving platforms (ESOMPs)
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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6 September
5G in Aviation
The future of aviation worldwide is one of significant continuing growth in air travel, air cargo, and private general aviation. In parallel with this growth, a significant increase in the supporting information infrastructure will need to occur. The infrastructure will support two primary functions: aviation operational needs (which includes airline …
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5 September
System integration
System integration is defined in engineering as the process of bringing together the component sub-systems into one system (an aggregation of subsystems cooperating so that the system is able to deliver the overarching functionality) and ensuring that the subsystems function together as a system. With regards to software solutions, …
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2 September
Military Laser Rangefinder essential for observation, target location and long range fire-control
A laser rangefinder is a rangefinder that uses a laser beam to determine the distance to an object. The most common form of laser rangefinder operates on the time of flight principle by sending a laser pulse in a narrow beam towards the object and measuring the time taken by …
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1 September
Laser sensors for military sonars and monitoring military assets and earthquakes
Laser, a device that stimulates atoms or molecules to emit light at particular wavelengths and amplifies that light, typically producing a very narrow beam of radiation. Lasers deliver coherent, monochromatic, well-controlled, and precisely directed light beams. Laser technology has observed a great advancement over the last few decades. This technology is …
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August, 2022
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29 August
Unmanned Autonomous helicopters for emergency relief and military operations
The helicopter is a type of aircraft which is lifted and propelled by one or more sets of horizontally revolving overhead rotors. It has two rotors that spin several blades. A blade is a tilted airfoil, just like an airplane wing. As it speeds through the air, each blade generates …
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