Keyword: Radar

Articles: Aerospace

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...

Briefs: RF & Microwave Electronics

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

Q&A: Research Lab

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...

Briefs: Imaging
The high-bandwidth, high-resolution ISAR technology can be used to study subsurface structures.
Briefs: Materials
Metamaterials that manipulate microwave energy can be fabricated using low-cost inkjet printing.
Briefs: Sensors/Data Acquisition
The system uses infrasonic acoustics for weather monitoring and for drone or UAV activity.
Briefs: Medical
Mobile radar devices could replace standard stethoscopes.
Briefs: Imaging
Using radar commonly deployed to track speeders and fastballs, the automated system “sees” around corners to spot oncoming traffic and pedestrians.
Briefs: Electronics & Computers
These non-reciprocal devices on a compact chip pave the way for applications from two-way wireless to quantum computing.
Briefs: Sensors/Data Acquisition
This technique offers enhanced resolution and improved system reliability for mapping and obstacle recognition and navigation for vehicles.
Briefs: Photonics/Optics
Using integrated photonic chips fabricated at EPFL, scientists have demonstrated laser-based microwave generators.
Briefs: RF & Microwave Electronics

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

Briefs: Green Design & Manufacturing
Hyperfine Interpolated Range Finding for CW Lidar, Radar, and Sonar Using Repeating Waveforms and Fourier Transform Reordering

NASA's Langley Research Center has developed a novel fine interpolation technique that is useful in signal processing for applications in lidar, sonar, radar, and similar modalities. The interpolation technique uses...

Briefs: Transportation

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...

Briefs: Aerospace

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...

Briefs: Test & Measurement

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...

Briefs: Communications

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

Briefs: Electronics & Computers
Device for and Method of Computer Intrusion Anticipation, Detection, and Remediation

Initially, relatively powerful computers were constructed as unique mainframes operated by larger corporations on isolated networks. Then, computers with modest amounts of computing power were made available to individuals as standalone personal computers. The...

Briefs: Aerospace

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...

Briefs: Software
Python Interface to Dual-Pol Radar Algorithms (DualPol)

This object-oriented Python module facilitates precipitation retrievals (e.g., hydrometeor type, precipitation rate, precipitation mass, particle size distribution) from polarimetric radar data. It leverages existing open-source radar software packages to perform all-in-one retrievals that...

Briefs: Photonics/Optics

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...

Briefs: Sensors/Data Acquisition
Briefs: Green Design & Manufacturing
Three-Band Cloud and Precipitation Radar

After many years of use of Tropical Rainfall Measurement Mission (TRMM) and CloudSat data, focus groups within the cloud and precipitation science community produced requirements for the next generation of missions. The first draft of Aerosol-Cloud-Ecosystem mission requirements was formalized in 2009,...

Briefs: Photonics/Optics

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

Application Briefs: Photonics/Optics

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

Briefs: Test & Measurement

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...

Briefs: Electronics & Computers
A High-Efficiency Power Module

Innovators at NASA’s Glenn Research Center have developed a microwave power module to power radar, communications, and/or navigation interchangeably. This high-efficiency, all-solid-state microwave power module (MPM) is based on a multi-stage distributed-amplifier design, which is capable of very wideband...

Articles: Aerospace

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...

Articles: Motion Control

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