Keyword: Data acquisition and handling

Briefs: Medical
Semiselective Optoelectronic Sensors for Monitoring Microbes

Sensor systems are under development for use in real-time detection and quantitation of microbes in water without need for sampling. These systems include arrays of optical sensors; miniature, portable electronic data-acquisition circuits; and optoelectronic interfaces between the...

Briefs: Electronics & Computers

A radio receiver system that features enhanced capabilities for remote sensing by use of reflected Global Positioning System (GPS) signals has been developed. This system was...

Briefs: Manufacturing & Prototyping

Nielsen Engineering & Research (NEAR) recently developed an ultrathin data acquisition system for use in turbomachinery testing at NASA Glenn Research Center. This system integrates a microelectro-...

Briefs: Software
Software for a GPS-Reflection Remote-Sensing System

A special-purpose software Global Positioning System (GPS) receiver designed for remote sensing with reflected GPS signals is described in "Delay/Doppler-Mapping GPS-Reflection Remote-Sensing System" (NPO-30385), which appears on the previous page. The input accepted by this program comprises...

Briefs: Photonics/Optics
Laser Ranging Simulation Program

Laser Ranging Simulation Program (LRSP) is a computer program that predicts selected aspects of the performances of a laser altimeter or other laser ranging or remote-sensing systems and is especially applicable to a laser-based system used to map terrain from a distance of several kilometers. Designed to run in...

Briefs: Electronics & Computers

The Data Acquisition and Control Systems (DACS) Laboratory is a facility at Stennis Space Center that provides an off test-stand capability to develop data-acquisition and control systems for...

Briefs: Software
Software for Mobile Data-Communication Networks

Mobile Router is operating system code residing in a network router allowing the router to provide mobile-ipv4 functionality for any attached nodes. Mobile Router enables the entire network to roam. It is no longer necessary for every node in the network to run mobile Internet Protocol (IP)...

Briefs: Information Technology
Characteristics of Dynamics of Intelligent Systems

An investigation of nonlinear mathematical models of dynamics has led to the selection of characteristics that could be useful for distinguishing mathematically between the behaviors of (1) intelligent or living systems and (2) nonliving systems. As contemplated here, an intelligent or living...

Briefs: Medical

A diagnostic software system (DSS) now under development is intended to implement artificial neural networks (ANNs) that will analyze magnetoencephalographic (MEG) data to locate...

Briefs: Physical Sciences
System For Measuring Osmotic Transport Properties of a Membrane

The membrane test cell (MTC) is an automated laboratory apparatus that applies a known osmotic potential across a membrane and measures the kinetics of the resulting transport of solvents across the membrane as a function of time. Data acquired by use of the MTC should prove...

Briefs: Information Technology
Flash Automated Updating of Software in Multiple Computers

Program and data files in the Unified Control Modules (UCMs) of the Operational Television system at Kennedy Space Center are updated rapidly and automatically in a scheme that exploits unique features of the UCM design. Each UCM includes a VersaModule Eurocard (VME) chassis, in which...

Briefs: Photonics/Optics

A proposed radiometric instrument denoted the spotlight radiometer (SLR) would operate in a frequency band centered at ≈557 GHz and would scan in a conical or circular pattern. The SLR was conceived for use in...

Briefs: Electronics & Computers

During development and production, cell phones and other portable devices must be tested and calibrated with a power source that accurately simulates...

Briefs: Information Technology

A method of semi- automated ident- ification of biomaterials, now under development, is based on the use of a combination of neural-network and of self-...

Briefs: Information Technology

Windowed revocation is a technique for the revocation of the digital certificates that provide assurance of the auth- enticity and integrity of public encryption keys and associated...

Briefs: Electronics & Computers

A scheme for organizing and controlling sensor webs is based on artificial neural networks. [Sensor webs were described in “Sensor Webs” (NPO-20616), NASA Tech Briefs, Vol. 23, No. 10...

Briefs: Manufacturing & Prototyping

Compact, lightweight, sensitive correlation spectrometers for detecting gaseous byproducts of the onset of fire are under development. These spectrometers would be installed in...

Briefs: Electronics & Computers
Hybrid Electric-Field Sensor

The hybrid electric-field sensor (HEFS) has been proposed for measuring quasi-static electric fields — especially those associated with thunderstorms. The HEFS would combine the relative compactness, low cost, and low power consumption of prior inductionprobe- type electric-field sensors with the higher sensitivity...

Briefs: Physical Sciences
Software for Electromagnetic Detection of Buried Explosives

U-HUNTER (also called “UXOHUNTER”) is a computer program that affords knowledge-based real-time sensor- fusion and display capabilities for detecting buried objects and materials of interest. U-HUNTER is intended especially for inferring the presence of buried unexploded ordnance...

Briefs: Information Technology
Physical Model of Immune-Inspired Computing

A mathematical model that represents several physical and mental behaviors has been developed to enable the phenomenological description of basic functions of immune systems. This development is part of a continuing effort to improve the autonomy of robots and spacecraft by use of computational methods...

Briefs: Information Technology
Mathematical Model of a Quantum Decision Maker

A mathematical model of a quantum analog-computing device that would simulate the human decision-making process has been developed. Like the immune-inspired- computing model described in the preceding article, this model is intended to contribute to improvement in the autonomy of robots and...

Briefs: Electronics & Computers

A coder/decoder system (codec) is being developed for use in a digital voice communication system in which speech is encoded as a series of frames of data and transmitted over a noisy or lossy channel. Called a...

Briefs: Software
Gyroscope Automated Testbed

The Gyroscope Automated Testbed (GAT) is a fully automated inertial device characterization testbed. Rotational response parameterization and shortterm noise stability analysis are the fundamental principles behind the system. Complete response characterization, bias stability, sensitivity, and range are supported...

Briefs: Electronics & Computers
Reusable Software for Autonomous Diagnosis of Complex Systems

A software system designed to provide a purely signal-based diagnosis of virtually any time-varying system has been developed. This software is part of an overall concept called “Beacon-based Exception Analysis for Multimissions,” or BEAM. This concept provides for real-time...

Briefs: Photonics/Optics

A portable instrumentation system that includes an airborne and a ground-based subsystem acquires multispectral image data over swaths of terrain ranging in width from about 1/2 to 1 km. The...

Briefs: Physical Sciences

A highly sensitive, low-power, low-noise multifunctional active-excitation spectral analyzer (MAESA) that would span the wavelength range of 0.5 to 2.5 µm and would operate near room...

Briefs: Photonics/Optics
High-Performance Processor of Hyperspectral Images

The Remote Sensing Hyperspectral Engine (RSHE) is a special-purpose, portable computer that performs high-performance processing of hyperspectral image data collected by a remote-sensing optoelectronic apparatus. Typically, the remote-sensing apparatus is airborne or spaceborne, the images are...

Briefs: Physical Sciences
Integrated Environmental Monitoring Instrument

A miniature, battery-powered, semiautonomous environmental monitoring instrument contains advanced meteorological sensors, a Global Positioning System (GPS) receiver for determining its position, radio-communication circuitry, and a controller that performs measurement, control, and...

Briefs: Software
LabVIEW as Flight Software With VxWorks Operating System

A development effort under way at the time of reporting the information for this article is directed toward producing a version of the LabVIEW data-acquisition software that would be suitable for use as flight software that could be executed in the VxWorks real-time operating system....

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