Electronics & Software

Communications

Briefs : Communications
Functional Enhancements to the FPGA Implementation of the Advanced Orbiting System Data Link Protocol

Dynamic frame sizing was added to the existing AOS Packet Service FPGA implementation. This capability provides in-flight system calibration functionality, allowing the spacecraft and ground station the means to optimize a communication link by...

Briefs : Communications
Communication System and Method Over High-Latency, Low-Bandwidth Networks

In high-latency, low-bandwidth networks such as those employed when communicating with an extraterrestrial object via wireless communication over hundreds or thousands of miles, it may be difficult or expensive to communicate large quantities of information in a reliable...

Briefs : Communications
CASH: Framework for Streamlined, Daily Updates

Secure, efficient, and effective communication is critical for the multinational Cassini mission to Saturn. Cassini teams share information through the use of internal Web pages. The challenge was to develop dynamic Web pages that did not require special understanding of HTML complexities and the...

Briefs : Communications
SCaN Optical Link Budget Tool

In response to the requirements of the Space-Based Relay Study (SBRS) undertaken by NASA in 2013, as well as the Integrated Radio and Optical Communications (iROC) project being conducted by NASA Glenn Research Center (GRC) beginning in 2012, a calculation procedure was required to rapidly assess the operation of...

News : Communications
Positioning Systems Improve Airport Logistics

Tow tractors, pushback tractors, tankers, luggage carts, air cargo, and catering vehicles crowd airport aprons. Poor weather conditions impede work on the apron even more. Researchers at the Fraunhofer Institute for Factory Operation and Automation IFF in Magdeburg are part of the EU project...

News : Energy
New Tool Guides Infrastructure Recovery After Disasters

A new computerized tool guides stakeholders in preparing for, and recovering from, natural and man-made disasters such as the cyclones in India that knocked out swaths of the Indian Railways Network. The method, developed by Northeastern University researchers, guides stake­holders in the...

News : Medical
NASA’s Wi-Fi Reflector Chip Speeds Up Wearables

Whether you're tracking your steps, monitoring your health, or sending photos from a smart watch, you want the battery life of your wearable device to last as long as possible. NASA's Jet Propulsion Laboratory in Pasadena, California, is working on microchips for wearable devices that reflect...

Briefs : Communications
Mars Relay CubeSat

When NASA and other agencies send landers to Mars and other planets, they rely on existing orbiters to relay the data during the critical entry, descent, and landing (EDL) phase. The current orbiters are aging and there...

News : Communications
Researchers Develop Biodegradable Computer Chip

In an effort to alleviate the environmental burden of electronic devices, a team of University of Wisconsin-Madison researchers has collaborated with the Madison-based U.S. Department of Agriculture Forest Products Laboratory (FPL) to develop a semiconductor chip made almost entirely of wood.

Briefs : Communications
VCSEL Laser Array for Communications

Optical communications in terrestrial and space environments require transmitted signals on the order of 40 GHz and higher, because of the uncertain and changing transmission environments. A robust communications system is needed that will provide these frequencies and substantial discrimination between...

Briefs : Communications
Providing a Real-Time Audible Message to a Pilot

An aircraft pilot would prefer to receive information on weather patterns, obstructions, and other conditions that may interfere with a flight plan, formal or informal, as the pilot’s flight proceeds, with a latency of no more than a few minutes. Learning of, and reacting to, a changing...

Briefs : Communications
Pass Plan Formatter (PPF) for Earth Sciences Ground Support System

The TRMM (Tropical Rainfall Measuring Mission) and Terra ESMO (Earth Science Mission Operations) Ground Systems needed a method of passing scheduling data through the Goddard Mission Services Evolution Center (GMSEC) bus to other subsystems without modifying the Planning and...

Briefs : Communications
Integrated Tool Archives, Extracts, and Analyzes Spacecraft Housekeeping Telemetry Data (GMSEC R3.0)

The Integrated Trending and Plotting System (ITPS) is a comprehensive tool for storage, extraction, analysis, and plots of spacecraft housekeeping telemetry data (GMSEC R3.0 — Goddard Mission Services Evolution Center). ITPS reports information...

Briefs : Communications
Low-Noise Analog APDs with Impact Ionization Engineering and Negative Feedback

Silicon avalanche photodiodes (Si APDs) have low dark current and low excess noise factor, and are currently used in many of NASA’s missions. Noise equivalent power (NEP) of 40 to 50 fW/(Hz)1/2 over 140-MHz bandwidth has been demonstrated for Si APDs. Si...

Briefs : Communications
Method to Improve Wireless System Communication Coverage in a Bended Tunnel Environment

The conventional methods of improving wireless system coverage performance are to increase the transmitter power and/or antenna gain. The high transmit power could lead to more power consumption and RF exposure issues. The use of a high-gain antenna could...

Technology Leaders

Tech Briefs TV

`