Keyword: Telecommunications

Briefs: Information Technology

A digital signal-processing algorithm has been devised as a means of aligning (as defined below) the outputs of multiple receiving radio antennas in a large array for the purpose of...

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: Information Technology

Efforts are under way to develop data- acquisition, data- processing, and data- communication systems for monitoring disasters over large geographic areas by use of uninhabited...

Briefs: Software
Service Management Database for DSN Equipment

This data- and event-driven persistent storage system leverages the use of commercial software provided by Oracle for portability, ease of maintenance, scalability, and ease of integration with embedded, client-server, and multi-tiered applications. In this role, the Service Management Database...

Articles: Imaging

High-performance computing (HPC) has transformed science and engineering over the past 20 years, but some fields have yet to fully realize its benefits due to software limitations. This...

Application Briefs: Communications
Voice-over-IP communications system
Quintron
Santa Maria, CA
805-928-4343
www.quintron.com

Quintron was selected by NASA’s Ames Research Center (ARC)...

Who's Who: Aerospace

Nicholas Johnson is Chief Scientist and Program Manager for NASA’s Orbital Debris Program Office. In July 2008 he...

Briefs: Medical
Biomedical Wireless Ambulatory Crew Monitor

A compact, ambulatory biometric data acquisition system has been developed for space and commercial terrestrial use. BioWATCH (Bio medical Wireless and Ambulatory Telemetry for Crew Health) acquires signals from bio-medical sensors using acquisition modules attached to a common data and power bus....

Briefs: Electronics & Computers

A system of electronic hardware and software for synchronizing recordings from multiple, physically separated video cameras is being developed, primarily for use in multiple-look-...

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: Software
Auto-Generated Semantic Processing Services

Auto-Generated Semantic Processing (AGSP) Services is a suite of software tools for automated generation of other computer programs, denoted cross-platform semantic adapters, that support interoperability of computer-based communication systems that utilize a variety of both new and legacy...

Briefs: Software
Event Driven Messaging With Role-Based Subscriptions

Event Driven Messaging with Role-Based Subscriptions (EDM-RBS) is a framework integrated into the Service Management Database (SMDB) to allow for role-based and subscription-based delivery of synchronous and asynchronous messages over JMS (Java Messaging Service), SMTP (Simple Mail Transfer...

Articles: Electronics & Computers

Capacitive sensors can be used to measure many different physical parameters that are important when monitoring the health of patients. In particular, the technical advances made by sensor...

Briefs: Information Technology

Bounded-angle iterative decoding is a modified version of conventional iterative decoding, conceived as a means of reducing undetected- error rates for short low-density parity-check (LDPC)...

Application Briefs: Communications
Communications Systems Support NASA’s Unmanned Aircraft
Communications systems and support equipment
L-3 Communications Corp.
Communications Systems West
Salt Lake City, UT
801-594-2000
www.l-3com.com/csw/

NASA’s Dryden Flight Research Center in Edwards, CA has chosen L-3 Communications Systems West to...

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: Physical Sciences

A concept for an ultra-broad-band optical parametric amplifier or oscillator has emerged as a by-product of a theoretical study in fundamental quantum optics. The study was...

Briefs: Information Technology
TCP/IP Interface for the Satellite Orbit Analysis Program (SOAP)

The Transmission Control Protocol/Internet protocol (TCP/IP) interface for the Satellite Orbit Analysis Program (SOAP) provides the means for the software to establish real-time interfaces with other software. Such interfaces can operate between two programs, either on the same...

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
Telemetry, tracking, and command services
ITT Corporation
White Plains, NY
914-641-2000
www.itt.com

ITT Corporation has been selected by the NASA...

Who's Who: Communications

Glenn Rakow is the Development Lead for SpaceWire, a high-speed communications protocol for space-flight electronics originally developed in 1999 by the European...

Articles: Motion Control

For process industries, one of the greatest challenges plant operators face is finding a sensor technology that will provide reliable measurement of liquid levels in tanks while...

Articles: Photonics/Optics

In spectrometry, the more light gathered the better the results. Yet in many applications, both military and commercial, the need to protect instruments or operators from harsh...

Briefs: Electronics & Computers

A breadboard version of a transmitter for radio communication at a carrier frequency of 32 GHz (which is in the Ka band) utilizes a vector modulator operating at a carrier frequency...

Briefs: Software
Distributing Data to Hand-Held Devices in a Wireless Network

ADROIT is a developmental computer program for real-time distribution of complex data streams for display on Web-enabled, portable terminals held by members of an operational team of a spacecraft-command- and-control center who may be located away from the center. Examples of such...

Articles: Software

Companies are constantly looking for ways to monitor and track the critical device information that resides in their remote assets. They also need to understand the environments in which their devices...

Briefs: Electronics & Computers
Communication Limits Due to Photon-Detector Jitter

A theoretical and experimental study was conducted of the limit imposed by photon-detector jitter on the capacity of a pulse-position- modulated optical communication system in which the receiver operates in a photon-counting (weak-signal) regime. Photon-detector jitter is a random delay between...

Briefs: Software
Delivering Alert Messages to Members of a Work Force

Global Alert Resolution Network (GARNET) is a software system for delivering emergency alerts as well as less-urgent messages to members of the Goddard Space Flight Center work force via an intranet or the Internet, and can be adapted to similar use in other large organizations. Messages can...

Articles: Robotics, Automation & Control

When it comes to choosing a flowmetering device, some users assume “one size fits all.” In reality, there are significant differences between flowmeter types, and each design has its unique “pros and...