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Rajesh Uppal

Troposcatter systems to provide backup to Satellite communications amid increasing space warfare threat

The dominant mode of communication today uses antennas to transmit information carrying high frequency signals using antennas which at the receive site produce an electrical signal which is amplified and demodulated by the receiver equipment. However this form of communication is limited by line of sight propagation limiting the range …

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Wireless consumer Electronics product design and testing RF/ Over The Air (OTA) measurement systems/chambers

Consumer Electronics product design and development has come a long way from traditional product development. Earlier, product development involved a semi-conductor company building a reference design around a brought out silicon/processor and promoting it in the targeted market segment. Some examples include semiconductor companies like Texas Instruments and Analog Devices, …

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Digital Camera design and manufacturing

A digital camera is a camera that captures photographs in digital memory. Most cameras produced today are digital, largely replacing those that capture images on photographic film.   Digital and digital movie cameras share an optical system, typically using a lens with a variable diaphragm to focus light onto an …

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Growing China Pakistan security and military nexus threat to national security of India, and United States

2021 marked 70 years of Pak-China’s diplomatic relations. China–Pakistan share a close strategic partnership since 1950s. The 1962 Sino-India War strengthened the relationship and, in 1963, Pakistan agreed to cede part of Kashmir to China, 5,180 Sq. Km of land in Karakoram region of north Kashmir. In return, China began …

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Multi-Wavelength Lasers sources for enhancing capacity of data centers and Networks

In communication applications like the internet, the most simple form of optical communication is with a single fiber consisting of a single wavelength laser TX/RX scheme. In fiber-optic communications, wavelength-division multiplexing (WDM) is a technology that multiplexes a number of optical carrier signals onto a single optical fiber by using different …

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Cyber threats and CyberSecurity technology trends

Cyber threats have become an increasingly important issue for businesses and individuals alike. As technology continues to evolve and become more integrated into our daily lives, cyber criminals are finding new and innovative ways to exploit vulnerabilities in the digital world.   Cyberattacks are frequent and increasingly complex, perpetrated by …

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DARPA developing new material system capable of more effective high energy gamma-ray shielding

One of biggest threat to  the deployed aerospace and defense electronics systems is radiation. Long term exposure of astronauts to radiation   is equally challenging. This force can occur naturally in space and at high altitudes on Earth, or can come in massive doses from the detonation of nuclear weapons. Deep-space and …

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Hyper-intelligent systems and Lethal Autonomous Weapons (LAWs) are gravest risk to mankind

Robotics has made significant progress, since its first deployment as an industrial robot more than 50 years ago. Robots are now days being used extensively in manufacturing, services, healthcare/medical, defense, and space. They have enhanced safety of humans from dangerous tasks, improved the productivity and the quality of life. In …

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Cyber threats of Cryptocurrency and Cryware

Bitcoin is a digital currency that allows for the transfer of payment between two parties, without the help of a bank—and without government oversight. On average, more than 250,000 bitcoin transactions occur every day, and with a market capitalization in excess of $66 billion, bitcoin has become the largest cryptocurrency in …

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DARPA Cornerstone to protect soldiers against blast or impact-induced behavioral and cognitive injury

Some 1 million people suffer traumatic brain injuries annually. Concussion can cause inner ear damage that can cause dizziness, anxiety, depression, moodiness, balance problems and irritability, said Elizabeth Kirkpatrick, the physical therapist for the Fort Drum Traumatic Brain Injury Clinic. The three different forms of TBI—severe, moderate, and mild—all manifest …

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