Here are innovative solutions for your biggest challenges in Electronics and Software - Power Supplies and Management, Board-Level Electronics, Components and Batteries. You’ll find applications essential to military, aviation, medical and automotive design engineering.

Briefs: Information Technology
Improved Tracking of Targets by Cameras on a Mars Rover

A paper describes a method devised to increase the robustness and accuracy of tracking of targets by means of three stereoscopic pairs of video cameras on a Mars-rover-type exploratory robotic vehicle. Two of the camera pairs are mounted on a mast that can be adjusted in pan and tilt; the...

Briefs: Information Technology
GVIPS Models and Software

Two reports discuss, respectively, (1) the generalized viscoplasticity with potential structure (GVIPS) class of mathematical models and (2) the Constitutive Material Parameter Estimator (COMPARE) computer program. GVIPS models are constructed within a thermodynamics- and potential-based theoretical framework, wherein...

A four-port magic-T hybrid waveguide junction serves as the central component of a high-efficiency two-way power combiner circuit for transmitting a high-rate...

Briefs: Electronics & Computers
Switched Band-Pass Filters for Adaptive Transceivers

Switched band-pass filters are key components of proposed adaptive, software- defined radio transceivers that would be parts of envisioned digital-data- communication networks that would enable real-time acquisition and monitoring of data from geographically distributed sensors. Examples of...

Briefs: Electronics & Computers
Loss-of-Control-Inhibitor Systems for Aircraft

Systems to provide improved tactile feedback to aircraft pilots are being developed to help the pilots maintain harmony between their control actions and the positions of aircraft control...

Briefs: Electronics & Computers
Four-Way Ka-Band Power Combiner

A waveguide structure for combining the outputs of four amplifiers operating at 35 GHz (Ka band) is based on a similar prior structure used in the X band. The structure is designed to function with low...

Briefs: Electronics & Computers
Waveguide Calibrator for Multi-Element Probe Calibration

A calibrator, referred to as the "spider" design, can be used to calibrate probes incorporating multiple acoustic sensing elements. The application is an acoustic energy density probe, although the calibrator can be used for other types of acoustic probes. The calibrator relies on the use...

A special-purpose high-voltage power supply can be electronically switched on and off with fast rise and fall times, respectively. The output potential is programmable from 20 to 1,250...

Briefs: Electronics & Computers
Noncoherent DTTLs for Symbol Synchronization

Noncoherent data-transition tracking loops (DTTLs) have been proposed for use as symbol synchronizers in digital communication receivers. [Communication- receiver subsystems that can perform their assigned functions in the absence of synchronization with the phases of their carrier signals ("carrier...

Since their introduction in 1991, PC/104 standard based systems have been widely adopted in various applications. Unmanned aircraft control, onboard vehicle control and navigation...

By Ed Getty
Research Fellow
Procter & Gamble
Cincinnati, OH

For almost 165 of Procter & Gamble’s 170-year history, nearly all growth came from innovating...

Stretched Lens Array
ENTECH
Keller, TX
817-379-0100
www.entechsolar.com

ENTECH has been awarded a contract from NASA’s Glenn Research Center, which will...

A circuit and method for transmitting and receiving on-off-keyed (OOK) signals with fractional signal-to-noise ratios uses available high-temperature silicon-on-insulator (SOI)...

A method of computing channel capacities and error rates in multipulse pulse-position modulation (multipulse PPM) has been developed. The method makes it possible, when designing an...

An alternative method of adaptive selection of Golomb power-of-two (GPO2) codes has been devised for use in efficient, lossless encoding of sequences of non-negative integers from...

Briefs: Information Technology
Analysis of Performance of Stereoscopic Vision Software

A team of JPL researchers has analyzed stereoscopic vision software and produced a document describing its performance. This software is of the type used in maneuvering exploratory robotic vehicles on Martian terrain. The software in question utilizes correlations between portions of the...

Briefs: Information Technology
Estimating the Inertia Matrix of a Spacecraft

A paper presents a method of utilizing some flight data, aboard a spacecraft that includes reaction wheels for attitude control, to estimate the inertia matrix of the spacecraft. The required data are digitized samples of (1) the spacecraft attitude in an inertial reference frame as measured, for...

Briefs: Information Technology
Spatial Coverage Planning for Exploration Robots

A report discusses an algorithm for an onboard planning and execution technology to support the exploration and characterization of geological features by autonomous rovers. A rover that is capable of deciding which observations are more important relieves the engineering team from much of the...

Briefs: Information Technology
Two Mathematical Models of Nonlinear Vibrations

Two innovative mathematical models of nonlinear vibrations, and methods of applying them, have been conceived as byproducts of an effort to develop a Kalman filter for highly precise estimation...

Application Briefs: Electronics & Computers
Signal Processing System Supplied For NASA’s SCaN Program
VXS-based satellite communications development system
TEK Microsystems
Chelmsford, MA
978-244-9200
www.tekmicro.com

TEK Microsystems’ first VXS-based...

This method uses a magnetic-fieldresponse contact sensor that is designed to identify surface contact and motion between contact locations. The sensor has three components:...

A magnetic field response sensor is designed to measure displacement or rotation rate without a physical connection to a power source, microprocessor, data acquisition equipment, or...

Briefs: Electronics & Computers
Tachometers Derived From a Brushless DC Motor

The upper part of the figure illustrates the major functional blocks of a direction-sensitive analog tachometer circuit based on the use of an unexcited two-phase brushless dc motor as a rotation...

Briefs: Electronics & Computers
VCO PLL Frequency Synthesizers for Spacecraft Transponders

Two documents discuss a breadboard version of advanced transponders that, when fully developed, would be installed on future spacecraft to fly in deep space. These transponders will be required to be capable of operation on any deepspace- communications uplink frequency channel between...

Briefs: Electronics & Computers
Wide Tuning Capability for Spacecraft Transponders

A document presents additional information on the means of implementing a capability for wide tuning of microwave receiver and transmitter frequencies in the development reported in the immediately preceding article, "VCO PLL Frequency Synthesizers for Spacecraft Transponders" (NPO-42909). The...

An optoelectronic metrology apparatus now at the laboratory- prototype stage of development is intended to repeatedly determine distances of as much as several hundred meters, at...

Products: Electronics & Computers
Dual-Core VME Single-Board Computer Delivers Low Voltage

Curtiss-Wright Controls Embedded Computing (Leesburg, VA) offers the SVME/DMV-1901 6U VME single-board computer with the Intel® Core™ Duo processor running at speeds of 1.67 and 2.0 GHz.

Products: Electronics & Computers
PrXMC/PrPMC Module

The TPA-XMC™ PrXMC/PrPMC Module from Themis® Computer (Fremont, CA) provides dual 64-bit processing and flexible high-speed I/O while consuming as little as 15 watts. The energy-efficient module is based on P.A. Semi's...

Products: Electronics & Computers
IP Core Software for FPGA Chips

SERCOS International (Santa Rosa Beach, FL) has introduced Easy-I/O, a freely downloadable IP core software for low-cost FPGA chips that allows SERCOS III to be integrated into basic I/O slave devices with...

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