Rajesh Uppal

Rajesh Uppal

  • Joined: January 29, 2016
  • Articles: 3626

Solar fiber optic lighting for daylighting of high-rise intensive buildings and military shelters

solarlighting

Conventional daylighting scheme employing windows and skylights are no longer so useful especially for daylighting of high-rise and intensive buildings. Residential buildings with limited natural lighting are generally lit by fuel-based electricity which contributes to increase of CO2 concentration in…...

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Miniaturized RF passive components like filters, inductors and capacitors required for future 5G and IoT requirements

Miniaturefilter

The RF design consists of passive as well as active components. The inductors, capacitors, and resistors are one of the three passive elements that are the foundations of all electronics. The discrete and passive components are an integral part of…...

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Cyber Security Situational Awareness tools on Defense Platform Networks are critical for Cyber Warfare

situation awareness1

Cyberspace is understood as the fifth domain of warfare equally critical to military operations as land, sea, air, and space. Success of military operations in the physical domains is increasingly dependent on the availability of, and access to, cyberspace. The…...

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DARPA HACCS employing AI for cybersecurity by developing autonomous software agents, that will infiltrate adversary’s networks, detect botnets and neutralize them

Defense research unit neutralize botnets

As the complexity of software is growing software vulnerabilites are also increasing. According to two US based organizations that track vulnerability disclosure, the number of software vulnerabilities has gradually grown year-over-year achieving its highest peak in 2017. Computers are not…...

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DARPA DeMi developing technologies for space based telescope on it’s military CubeSat satellite for Space Surveillance Awareness

spacetelescope

The volume of space between the Earth’s surface out to geosynchronous orbit is enormous—equivalent to 240,000 times all the Earth’s oceans. Yet the number of objects calling that volume home is growing all the time—not just with satellites but with…...

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DARPA operationalizes Space Surveillance Telescope in Australia, earlier handed over to Air Force Space Command to protect satellites from orbiting junk and space weapons

SST

A U.S.-developed space surveillance telescope has been assembled at a new facility in Western Australia and is expected to start operating in 2022, the U.S. Space Force Space and Missile Systems Center announced April 2020. The telescope, designed to track and…...

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Phased array antennas for phased array radars to satellite constellations to SATCOM On-The-Move (SOTM) on warships

USNavyCOMMS01 Feb17

Wireless electronic systems have been relying on dish antennas to send and receive signals. These systems have been widely used where directivity is important and many of those systems work well at a relatively low cost after years of optimization.…...

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The denial of GPS services during Kargil War has driven ISRO to develop Indian Regional Navigation Satellite System (IRNSS), superior to GPS

IRNSS Indian regional navigation satellite system 1

The Global Positioning System (GPS), is a global navigation satellite system (GNSS) that provides location and time information in all weather conditions, anywhere on or near the Earth where there is an unobstructed line of sight to four or more…...

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DARPA V-SPELLS to develop automated tools for understanding, Re-engineering and Assurance of legacy software of Defense and Aerospace systems

DARPAV SPELLS

The complexity of  aerospace and defense software has grown manyfold. For example, the U.S. Air Force F-22 Raptor jet fighter, consists of about 1.7 million lines of software code, while the F-35 joint strike fighter has about 5.7 million lines…...

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Hybrid Free Space Optics (FSO)/Radio Frequency (RF) communication systems can improve the performance of Free space optical communications

Hybrid FSO RF communication system

Free-space optical communication (FSO) is an optical communication technology that uses light propagating in free space to wirelessly transmit data for telecommunications or computer networking. “Free space” means air, outer space, vacuum, or something similar. FSO operates on the Line-of-Sight…...

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