Briefs: Electronics & Computers
A proposed heterodyne receiver would be capable of detecting electromagnetic radiation in both of two orthogonal linear polarizations, separating sidebands, and providing...
Briefs: Information Technology
An application-layer protocol and a network architecture have been proposed for data communications among multiple autonomous spacecraft that are required to fly in a precise...
Briefs: Software
Terminal Descent Sensor Simulation
Sulcata software simulates the operation of the Mars Science Laboratory (MSL) radar terminal descent sensor (TDS). The program models TDS radar antennas, RF hardware, and digital processing, as well as the physics of scattering from a coherent ground surface. This application is specific to this sensor and is...
Briefs: Electronics & Computers
A superconducting hot-electron bolometer has been built and tested as a prototype of high-sensitivity, rapid-response detectors of submillimeter-wavelength radiation. There are diverse...
Briefs: Semiconductors & ICs
Modules containing multiple monolithic microwave integrated-circuit (MMIC) chips have been built as prototypes of transmitting/receiving (T/R) modules for millimeter-wavelength radar systems, including...
Briefs: Electronics & Computers
A system that includes a Global Positioning System (GPS) antenna and associated apparatus for keeping the antenna aimed upward has been developed for use aboard a...
Briefs: Electronics & Computers
The figure shows a dual-beam, dual- polarization Ku-band antenna, the reflector of which comprises an assembly of small reflectarrays arranged in a piecewise-planar approximation of a parabolic...
Briefs: Physical Sciences
An analog electronic camera that is part of a metrology system measures the varying direction to a light-emitting diode that serves as a bright point target. In the original application for which...
Briefs: Physical Sciences
This compact, lightweight, dual- frequency antenna feed developed for future soil moisture and sea surface salinity (SSS) missions can benefit future soil and...
Briefs: Software
The term “submillimeter confocal imaging active module” (SCIAM) denotes a proposed airborne coherent imaging radar system that would be suitable for use in reconnaissance, surveillance, and...
Briefs: Electronics & Computers
Reducing Interference in ATC Voice Communication
Three methods have been proposed to be developed to enable reduction of the types of interference that often occur among voice-communication radio signals involved in air-traffic control (ATC). For historical reasons and for compatibility with some navigation systems, control towers and aircraft...
Briefs: Physical Sciences
Magnetic-field-response sensors have been developed for use in measuring levels of fluids under extreme conditions. The sensors work without wire connections or direct physical contact with...
Briefs: Electronics & Computers
An effort to develop large-aperture, wide-angle-scanning reflectarray antennas for microwave radar and communication systems is underway. In an antenna of this type as envisioned,...
Briefs: Software
Mission and Assets Database
Mission and Assets Database (MADB) Version 1.0 is an SQL database system with a Web user interface to centralize information. The database stores flight project support resource requirements, view periods, antenna information, schedule, and forecast results for use in mid-range and long-term planning of Deep Space...
Application Briefs: Communications
ITT Corporation
White Plains, NY
914-641-2000
www.itt.com
ITT Corporation has been selected by the NASA...
Briefs: Electronics & Computers
Interferometric synthetic aperture radar (InSAR) has been shown to provide very sensitive measurements of surface deformation and displacement on the order of 1 cm. Future...
Briefs: Electronics & Computers
Quasi-Optical Transmission Line for 94-GHz Radar
A quasi-optical transmission line (QOTL) has been developed as a low-loss transmission line for a spaceborne cloud-observing radar instrument that operates at a nominal frequency of 94 GHz. This QOTL could also readily be redesigned for use in terrestrial millimeter- wave radar systems and...
Briefs: Information Technology
Converting From CVF to AAF
A computer program called “dsn config converter” automates what had been a manual process for updating the multi-mission adaptation file (multi.aaf) used by a multiple- mission- command- sequence- generating process comprised of a combination of the AUTOGEN and APGEN programs mentioned in the immediately preceding...
Briefs: Electronics & Computers
To support NASA's planned 20-year mission to provide sustained global precipitation measurement (EOS-9 Global Precipitation Measurement (GPM)), a deployable antenna has been...
Briefs: Electronics & Computers
Wide-Band Radar for Measuring Thickness of Sea Ice
A wide-band penetrating radar system for measuring the thickness of sea ice is under development. The need for this or a similar system arises as follows: Spatial and temporal variations in the thickness of sea ice are important indicators of heat fluxes between the ocean and atmosphere and,...
Briefs: Electronics & Computers
System for Measuring Flexing of a Large Spaceborne Structure
An optoelectronic metrology system is used for determining the attitude and flexing of a large spaceborne radar antenna or similar structure. The measurements are needed for accurate pointing of the antenna and correction and control of the phase of the radar signal wavefront. The...
Briefs: Electronics & Computers
The figure depicts selected aspects of a very-high-frequency (VHF) microstrip-patch antenna designed and built to satisfy requirements specific to an airborne synthetic-aperture radar...
Briefs: Software
Post-Flight Estimation of Motion of Space Structures: Part 1
A computer program estimates the relative positions and orientations of two space structures from data on the angular positions and distances of fiducial objects on one structure as measured by a target-tracking electronic camera and laser range finders on another structure. The...
Briefs: Software
The DSN Array Simulator (wherein "DSN" signifies NASA's Deep Space Network) is an updated version of software previously denoted the DSN Receive Array Technology Assessment Simulation. This software (see figure) is used...
Briefs: Electronics & Computers
A new version of the double-Y balun, transitioning from an unbalanced microstrip to a balanced coplanar strip (CPS) line, has been designed to feed a complementary spiral antenna with an...
Briefs: Electronics & Computers
Compact, highly customizable digital receivers are being developed for the system described in "Radar Interferometer for Topographic Mapping of Glaciers and Ice Sheets" (NPO-43962), NASA Tech Briefs,...
Briefs: Electronics & Computers
The cup cylindrical waveguide antenna (CCWA) is a short backfire microwave antenna capable of simultaneously supporting the transmission or reception of two distinct signals having opposite circular...
Briefs: Medical
Hand-Held Units for Short-Range Wireless Biotelemetry
Special-purpose hand-held radio- transceiver units have been proposed as means of short-range radio powering and interrogation of surgically implanted microelectromechanical sensors and actuators. These units are based partly on the same principles as those of the units described in...
Briefs: Medical
Telemetry systems of a type that have been proposed for the monitoring of physiological functions in humans would include the following subsystems:
Surgically implanted...
Top Stories
Blog: Software
A Chat with an AI CAD Designer via ChatGPT
Blog: Propulsion
Mech Suit Gives Humans 50X Strength
Quiz: Energy
INSIDER: Automotive
Reused car batteries rev up electric grid
Blog: Manned Systems
7 Questions with Astronaut Eileen Collins
Technology & Society: Design
Question of the Week
Blog: Artificial Intelligence: Meet Human Intelligence
Webcasts
Upcoming Webinars: Photonics/Optics
Specifying Laser Modules for Optimized System Performance
Upcoming Webinars: Communications
The Power of Optical & Quantum Technology, Networking, &...
On-Demand Webinars: Software
How to Achieve Seamless Deployment of Level 3 Virtual ECUs for Automotive...
On-Demand Webinars: Manufacturing & Prototyping
Tailoring Additive Manufacturing to Your Needs: Strategies for Performance and...
On-Demand Webinars: Sensors/Data Acquisition
Driver-Monitoring: A New Era for Advancements in Sensor Technology
On-Demand Webinars: Electronics & Computers
Leveraging Machine Learning in CAE to Reduce Prototype Simulation and Testing
Trending Stories
Products: Photonics/Optics
Product of the Month: LED Light Engines for Large FOV Fluorescence Imaging...
Articles: Data Acquisition
Leveraging Machine Data to Improve the Bottom Line
Briefs: Mechanical & Fluid Systems
HEXPANDO Expanding Head for Fastener-Retention Hexagonal Wrench
Briefs: Mechanical & Fluid Systems
Folding Elastic Thermal Surface — FETS
Articles: Motion Control
Valves for Pneumatic Cylinders and Actuators
Blog: Design