Keyword: Radio equipment

Briefs: Materials
Fibers of Aligned Single-Wall Carbon Nanotubes and Process for Making the Same

Single-wall carbon nanotubes (SWNTs) are fullerenes of closed-cage carbon molecules typically arranged in hexagons and pentagons. Commonly known as “buckytubes,” these cylindrical carbon structures have extraordinary properties, including high electrical and...

Briefs: Information Technology
Software-Defined Beacon Receiver Implementation Using Frequency Estimation Algorithms

The objective of this work was to develop a robust, cost-effective receiver with maximum dynamic range to track the frequency and power variation of a beacon signal. The result was the development of a frequency estimation algorithm that yields a more accurate...

Application Briefs: Manufacturing & Prototyping
FDM® (Fused Deposition Modeling™) technology and ULTEM 9085 thermoplastic
Stratasys Direct Manufacturing (RedEye, Solid Concepts, and Harvest...
Articles: Sensors/Data Acquisition

More than three million Americans are currently living with glaucoma, an eye disorder with few symptoms in its early stages. Globally, the number may increase to almost 80 million by 2020, according...

INSIDER: Electronics & Computers

A Yale lab has developed a new, radio frequency processing device that allows information to be controlled more effectively, opening the door to a new generation of...

Briefs: Software
Rule-Based Analytic Asset Management for Space Exploration Systems (RAMSES)

Human space systems, such as the International Space Station (ISS) and future planned missions to the lunar surface and beyond, require the crew’s ability to locate and manage the physical resources that are required for use to achieve mission objectives. However, the...

Articles: Sensors/Data Acquisition

Touch screens are slowly but surely creeping into every aspect of our day-to-day lives. It’s not unlikely that you wake up to a cellphone alarm, adjust the room temperature on a thermostat, change the radio...

Briefs: Electronics & Computers
An Earth-Observing, Frequency-Agile Radar Receiver for RFI Mitigation

The Soil Moisture Active Passive (SMAP) mission will have the first L-band radar/radiometer sensor suite dedicated to global measurements of soil moisture. For the radar sensor, the requirements for achieving high backscatter measurement accuracy from low-Earth orbit present a...

Briefs: Information Technology
Integrated and Automated Software Test Environment for JPL Software Defined Radio

Software has been developed that provides an integrated and automated test environment for the Space Telecommunications Radio System (STRS). This software package is Linux based and provides interactive and scripted control to test the JPL Software Defined Radio...

Articles: Aerospace
The Polariton Interferometer — A Novel Inertial Navigation System Frederick Moxley
Louisiana State University
Baton Rouge, LA
Briefs: Electronics & Computers

Photovoltaic cell arrays are used on robotic rovers on the Mars surface, but dust accumulation on the surface of the solar cells reduces their exposure to light radiation and thus degrades their performance....

Briefs: Physical Sciences

Keysight Technologies (formerly Agilent Technologies) develops world-leading equipment for solving tough measurement challenges. The company’s Infiniium 90000 Q-Series...

Briefs: Information Technology
Computer Modeling for Generation of Synthetic Radio Reflection-Transmission Tomography (RRTT) Data

Numerical algorithms capable of generating synthetic radio tomography data (reflection transmission data) for asteroids, comets, and other near-Earth orbits (NEOs) were developed. Future missions to main asteroid belt objects, NEOs, and other small...

Briefs: Information Technology
Missing Value Imputation in Astronomical Time-Series Data

A document describes a solution to missing flux values in time-domain optical and radio astronomical survey data that form “light curves.” The technique incorporates a priori astronomical knowledge into a missing value imputation technique. It is assumed that missing values in...

Articles: Manufacturing & Prototyping

The technologies NASA develops don’t just blast off into space. They also improve our lives here on Earth. Life-saving search-and-rescue tools, implantable medical devices, advances in commercial aircraft...

Briefs: Electronics & Computers
Multi-Tone, High-Frequency Synthesizer for CubeSat-Borne Beacon Transmitter for Radio Wave Atmospheric Propagation Studies

This report presents the design, construction, and test results of a novel multitone, multi-band, high-frequency synthesizer for application in a space-borne (including a CubeSat) beacon transmitter for radio wave...

Briefs: Software
Gridded Atmosphere Products from GPS Radio Occultation Measurements with Bayesian Interpolation Technique

GPS radio occultation measurements are vital for climate monitoring and atmospheric temperature change detection. However, the data are irregularly distributed in space and time, which makes it inconvenient for many applications.

Briefs: Sensors/Data Acquisition

The current radio infrastructure for firefighters provides voice communications, but does not support data transfer capability for continuous monitoring of...

Briefs: Physical Sciences

Existing observing systems are inadequate to measure a variety of dynamic atmospheric processes. Ground-based or airborne systems do not observe over sufficiently large regions to capture...

Briefs: Electronics & Computers
Interactive Inventory Monitoring

The invention is a radio frequency identity detector (RFID)-based system that assists a user in location of an item, in response to an electronic query for the status of the item. The item(s) being sought may be a book on a library shelf, an item from a store inventory, a legal or financial document, a medical...

Briefs: Physical Sciences

Deployable Fresnel rings (DFRs) significantly enhance the realizable gain of an antenna. This innovation is intended to be used in combination with another antenna element, as the DFR itself acts as a focusing or...

Briefs: Electronics & Computers
Microwave Kinetic Inductance Detector With Selective Polarization Coupling

A conventional low-noise detector requires a technique to both absorb incident power and convert it to an electrical signal at cryogenic temperatures. This innovation combines low-noise detector and readout functionality into one device while maintaining high absorption,...

Briefs: Materials

Mechanisms are used widely in engineering applications due to their ability to translate force and movement. They are found in kinematic pairs, gears, cams, linkages,...

Articles: Medical
Vitalflo James Dieffenderfer, Mike Brown, and Leigh Johnson
North Carolina State University,
Apex, NC

Over 25 million Americans have been diagnosed with asthma, and of...

Briefs: Physical Sciences

In popular perception, the vastness of space is an empty vacuum dotted with stars, planets, black holes, and other celestial formations. In reality, astrophysicists have shown...

Briefs: Electronics & Computers

The Mixed Signal Radio Frequency Interface Front (MSRFIF) end is an energy harvesting product that can work from low frequencies (60 Hz or less) up to 250 MHz. Since analog signal processing may be needed for...

Briefs: Mechanical & Fluid Systems
Mechanism for Deploying a Long, Thin-Film Antenna From a Rover

Observations with radio telescopes address key problems in cosmology, astrobiology, heliophysics, and planetary science including the first light in the Universe (Cosmic Dawn), magnetic fields of extrasolar planets, particle acceleration mechanisms, and the lunar ionosphere. The Moon...

Articles: Software

A frequency selective surface that acts as an RF filter and helps reduce the radar cross-section of antennas consists of a pattern of geometrical objects. There are literally thousands of...

Application Briefs: Lighting

Libelium recently announced the availability of a new smart lighting solution for Smart Cities deployments based on the modular Waspmote Plug & Sense! wireless sensor...