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Rajesh Uppal

Distributed optical fiber sensors (DOFS) are superb for infrastructure and earthquake monitoring

The fiber optic sensors also called as optical fiber sensors use optical fiber or sensing element.  These Sensors can measure a large variety of parameters, such as temperature, pressure, strain, refractive index, vibrations, displacements, bending, loading, and liquid level or concentration of chemical species.   Over the past decade, optical …

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Photonic ADCs have removed the bottlenecks of bandwidth limitations and timing jitter of electronic analog-to-digital converter (ADC)

The performance of digital receivers used in modern military radar, communication, and surveillance systems is often limited by the performance of the analog-to-digital converter (ADC) used to digitize the received signal. Ultrafast ADCs are critical in military applications such as military software-defined radio, radar, and electronic counter-warfare (ECW) that require …

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Auxiliary ships for Afloat support sealift capacity is decisive in maintaining the wide spectre of current naval operations around the globe

Auxiliary ships are vital to maintaining a strong and efficient naval fleet. They are designed to perform multiple roles to effectively support combatant ships in and out of battle, as well as complete other similar naval operations. Although auxiliaries assist other ships and do not execute primary combatant operations, they …

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Enhanced Long-Range Navigation (eLORAN) will complement GPS under Navigation Warfare environment

The world’s shipping industry is experiencing strong growth, which is expected to continue. Ships are getting larger and faster, sea-lanes are becoming more crowded, and crews are increasingly relying on electronic navigation systems to operate in this environment . The newly proposed concept of e-Navigation will improve safety, security, and …

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Nanotechnology based sensors for rapid, sensitive and reliable detection of explosives

In recent years, spread of terrorism has assumed an alarming proportion across the globe, because of the simplicity and variety of schemes by which these explosive-based weapons can be deployed causing enormous damage to public safety and environmental pollution. This has emphasized the need for rapid, sensitive and reliable detection …

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Militaries race to develop Quantum radar that would render Stealth Aircraft Obsolete, monitor Ballistic missiles to low altitude satellites

The utility of Modern high frequency Radars have become degraded due to  innovation in stealth that resulted include unusual shapes that deflect radar waves—like the US B-2 bomber’s “flying wing” design (above)—as well as carbon-based materials and novel paints.  China and Russia have since gotten stealth aircraft of their own, …

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DARPA’s LwLL developing more efficient machine learning by massively reducing the amount of labeled data needed to train accurate models

Deep learning is a type of machine learning in which a model learns to perform classification tasks directly from images, text, or sound. Deep learning is usually implemented using a neural network architecture. Deep learning architectures such as deep neural networks, deep belief networks, recurrent neural networks and convolutional neural …

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DARPA GAPS program developing hardware and software architectures that can provide physical security like air-gaps

Today, modern computing systems are incapable of creating sufficient security protections such that they can be trusted with the most sensitive data while simultaneously being exposed to untrusted data streams.” “Therefore, for the most sensitive computing systems, [the Department of Defense] and commercial industry have in certain places adopted a …

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Metasurfaces enable innovative wireless receivers and transmitters for 5G communications, remote sensing and radar applications

Metamaterials are artificially structured materials designed to control and manipulate physical phenomena such as light and other electromagnetic waves, sound waves and seismic waves in unconventional ways, resulting in exotic behavior that’s not found in nature. This class of micro- and nano-structured artificial media are predicted to be able to protect …

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Structural electronics to disrupt the automotive and aerospace sectors by replacing dumb components with smart materials, smart skin, load-bearing parts, and e-textiles

The term, structural electronics (SE), refers to a next-generation based electronics technology, which involves the printing of functional electronic circuitries, across irregular-shaped architectures. SE is expected to replace bulky load-bearing structures within a circuitry with smart electronic components that can conform to complex shapes for ensuring optimum space utilization. SE …

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