Test Strategies to Track Hypersonic Threats

Hypersonic weapons, unlike ballistic missiles, take unpredictable paths and can evade missile defense systems. To counter hypersonic technologies, radar engineers must build systems that have no...

Terahertz Energy Focused by Credit Card-Sized Device to Generate High-Resolution Images

Researchers have created a device that enables them to electronically steer and focus a beam of terahertz electromagnetic energy with extreme precision....

Q&A: Radar Imaging at Terahertz Frequencies

Professor Kenneth K. O. and his colleagues at The University of Texas at Dallas and Oklahoma State University have developed an innovative and affordable terahertz imager microchip that can enable...

Inverse Synthetic Aperture Radar

The high-bandwidth, high-resolution ISAR technology can be used to study subsurface structures.

Inkjet Printing of Metamaterials

Metamaterials that manipulate microwave energy can be fabricated using low-cost inkjet printing.

High-Altitude Unmanned Aerial Vehicle (UAV) for Monitoring Meteorological Parameters

The system uses infrasonic acoustics for weather monitoring and for drone or UAV activity.

Radar Enables Touch-Free Monitoring of Heart Sounds

Mobile radar devices could replace standard stethoscopes.

Radar Enables Cars to Spot Hazards Around Corners

Using radar commonly deployed to track speeders and fastballs, the automated system “sees” around corners to spot oncoming traffic and pedestrians.

“One-Way” Electronic Devices

These non-reciprocal devices on a compact chip pave the way for applications from two-way wireless to quantum computing.

Pseudo-Random Coding Technique for 3D Imaging

This technique offers enhanced resolution and improved system reliability for mapping and obstacle recognition and navigation for vehicles.

Photonic Microwave Generation Using On-Chip Optical Frequency Combs

Using integrated photonic chips fabricated at EPFL, scientists have demonstrated laser-based microwave generators.

Low-Bandwidth Radar Technology Provides Improved Detection of Objects

Radar technologies were originally designed to identify and track airborne military targets. Today, they're more often used to detect motor vehicles, weather formations,...

Using Vanadium Dioxide to Create Programmable Electronic Functions

Vanadium dioxide’s unique properties make it ideally suited for outperforming silicon and giving rise to a new generation of low-power electronic devices. This compound can...

Ground-Based System Guides UAVs to Avoid Collisions

The Federal Aviation Administration (FAA) averages more than 100 reports a month of interactions between unmanned aircraft systems (UAS) and commercial or private planes. For UAS to fly in...

Radar Scanner Tests Wind Turbine Blades for Defects

Wind power has become an indispensable part of an environmentally friendly power supply. Therefore, it is important for this growth market that wind turbines become more efficient, more...

Tunable, High-Isolation RF/Microwave Circulator

A new high-isolation RF circulator provides enhanced detection ranges (radar) and improved reception (communications) by reducing signal leakage and undesirable internal reflections between...

Airborne Sense-and-Avoid Radar Panel

Although unmanned aerial systems (UAS) have proven increasingly useful in a variety of applications, their widespread usage within the National Airspace System is limited because of regulatory...

Digital Beamforming Interferometry

NASA Goddard Space Flight Center has developed a new radar approach that uses a single phased array antenna and a single-pass configuration to generate interferograms, known as Digital Beamforming...

Active Remote Sensing Radiometer

System and Method for Generating a Frequency-Modulated Linear Laser Waveform

NASA's Langley Research Center has made a breakthrough improvement in laser frequency modulation. Frequency modulation technology has been used for surface...

System and Method for Generating a Frequency-Modulated Linear Laser Waveform

NASA’s Langley Research Center has made a breakthrough improvement in laser frequency modulation. Frequency modulation technology has been used for surface...

Method and Apparatus for Measuring Surface Air Pressure

NASA’s Langley Research Center has developed a novel method for long-range atmospheric pressure sensing. Based on known properties involving oxygen density, the technology is able to...

Rice Crop Models Stabilize Global Markets and Enable Efficient Irrigation

When global food prices spiked dramatically in late 2007 and into 2008, with the costs of many basic dietary staples doubling or even tripling, protests and riots...

Balancing Motor Control, Radiation Tolerance, and Power Consumption in Space Applications

Modern satellites use motors for many purposes — moving solar panels for optimum alignment to the Sun; moving reaction wheels to change the...