Keyword: Remote sensing

Briefs: Green Design & Manufacturing

NASA’s Langley Research Center has developed a waveform processing technique to eliminate signal noise resulting from sources of interference (scatterers) that can degrade continuous...

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Briefs: Test & Measurement
Mars Science Laboratory ChemCam Sun Safety

The Mars Science Laboratory (MSL) ChemCam instrument can be damaged when the Sun enters or passes through its field of view (FOV). There is no Sun cover, yet other instruments mounted with boresights pointing in the same direction must observe the Sun for scientific observations and for attitude...

Articles: Aerospace
Simulating the SLS Sound Suppression Water System

NASA’s next-generation Space Launch System (SLS) for deep space exploration consists of four RS-25 liquid rocket engines and...

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Briefs: Aerospace

The AeroPod, developed at NASA Goddard Space Flight Center’s Wallops Flight Facility, is a passive device that uses aerodynamic forces to stabilize an instrument package suspended from a kite...

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Briefs: Robotics, Automation & Control
Elimination of Yaw Component of Gyroscope Propagation Error During Arm Activity in MSL

When updating attitude during arm motion, gyroscope propagation error soon becomes greater than the tilt being monitored. The solution is to add an accelerometer-only mode that can update attitude without using gyroscopes, and to add the ability to monitor...

Briefs: Imaging
3D Imaging Laser System

NASA’s Goddard Space Flight Center has developed a non-scanning, 3D imaging laser system that uses a simple lens system to simultaneously generate a one-dimensional or two-dimensional array of optical (light) spots to illuminate an object, surface, or image to generate a topographic profile.

Briefs: Electronics & Computers
Reconfigurable Drive Current System

NASA’s Marshall Space Flight Center (MSFC) has developed compact, reconfigurable electronic devices to drive and control avionics instruments. Typical avionics systems function through centralized power distribution units (PDUs), which have complex, expensive, and time-consuming design, development, test,...

Briefs: Sensors/Data Acquisition

Millimeter-wave (mm-wave) imaging techniques are already a popular solution for imaging through dust and fog. While mm-wave offers excellent penetration to dust when compared with infrared or optical sensing,...

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Briefs: RF & Microwave Electronics
Wideband, Dual-Polarized, Ultra-Low-Noise Focal Plane Array Feed for Active/Passive Microwave Remote Sensing

NASA missions utilize active, passive, or both, microwave sounders with a large reflector antenna as an important component. In most of these applications, design engineers have realized that desirable science requirements (spatial and...

Briefs: Information Technology
Crisis Mapping Toolkit (CMT) V1

The increasing availability of accessible geospatial data with a turnaround time of days or hours provides unique opportunities for responders to better plan responses to crises, and to inform victims, friends, and relatives of local crisis conditions. However, this raw data is not readily interpretable by the...

NASA Spinoff: Green Design & Manufacturing
NASA Technology

Idaho is a nature-lover’s dream. Forests there blanket swaths of terrain, from the glassy lake regions of the northern Panhandle to the famous trout-fishing streams of the...

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Articles: Test & Measurement

The seconds to minutes of advance warning of an earthquake can allow people and systems to take actions to protect life and property from destructive shaking. Earthquake early...

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Briefs: Sensors/Data Acquisition
Advanced Rapid Imaging and Analysis for Earthquakes

Advanced Rapid Imaging and Analysis for Earthquakes (ARIA-EQ) will be the first coordinated effort to automate geodetic imaging capabilities so they can be used for hazard response. The innovation is an automatic geodetic imaging data system that is the foundation for an operational hazard...

Briefs: Robotics, Automation & Control
Rapid Forest Triage by Sub-Canopy Micro Air Vehicles

Today, tree distribution maps can only be generated manually in a very time-consuming process, and real-time microclimate mapping of a large 3D volume under tree canopy is not possible. A prototype small quadrotor unmanned aerial vehicle (UAV) system was developed that is able to maneuver in...

Briefs: Green Design & Manufacturing
Daily Mesoscale Sea Surface Salinity from Evaporation and Precipitation

Quantification of salinity is hampered by the lack of time and space resolution of existing measurements and models. At present, skin salinity measurements are available every few days with limited spatial resolution. Daily skin salinity products are full of gaps, which some...

Briefs: Aerospace
Parallelization of Snowflake Growth Simulation

Gravner and Griffeath have developed a serial numerical model that simulates the growth of snowflakes in three dimensions under the assumptions of 24-fold symmetry. To allow for much larger and asymmetric snowflakes as well as to reduce simulation time, their model was re-implemented using...

Briefs: Aerospace
Software for Inferring the Aerosol Water and Soot Fractions from Remote Sensing Measurements

Aerosol water content and soot concentrations are important components of aerosol forcing. Aerosols contain varying amounts of water depending upon their aerosol hygroscopicity, and anthropogenic aerosols are among the most hygroscopic aerosols; hence,...

Briefs: Green Design & Manufacturing

The Adélie penguin has a circum-Antarctic distribution and is widely considered a useful indicator of status and change in the Antarctic and Southern Ocean...

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Briefs: Photonics/Optics

All imaging systems from space are affected by disturbances originating in the spacecraft in the form of mechanical noise from thruster and reaction/momentum wheels, and sensor noise. A...

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Briefs: Sensors/Data Acquisition
Generating a Laser Linear Frequency Modulation Waveform for Application in Coherent Doppler Lidar

Frequency modulation of a single-frequency laser with a linear triangular waveform is of great interest to many laser remote sensing and interferometry applications. Linear frequency modulation of a continuous-wave (CW) laser beam can make target...

Briefs: Sensors/Data Acquisition
Multiple-Frequency-Band Software-Defined Radiometer

Remote sensing — the use of spacebased satellite technologies to obtain information on environmental variables — in combination with other types of data, can provide information on changes in the Earth’s surface and atmosphere that are critical for weather forecasting and responding to...

Briefs: Materials
Using Black Polyimide/Kevlar as a Metering Structure Multi-Layer Insulation (MLI)

Metering structures of remote sensing instruments often have large openings or access holes. Shear panels that are X-shaped, such as those proposed for the Neutron Star Interior Composition Explorer (NICER), generally consist of C-channels and L-brackets to...

Briefs: Green Design & Manufacturing
Digital Elevation Model Maker (DEMmaker)

The DEMmaker suite of software applications produces data products containing surface shape, reflectivity, and geomorphology (craters and rocks) for a desired planetary surface based on statistically accurate size and frequency distributions of geologic and surface impact features. The current version can...

Briefs: Electronics & Computers

Next-generation synthetic aperture radar (SAR) remote sensing platforms utilize new concepts such as the SweepSAR techniques that provide increased swath size,...

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Briefs: Robotics, Automation & Control
Visual Environment for Remote Virtual Exploration (VERVE)

VERVE is a 3D visualization system that provides situational awareness, science analysis tools, and data understanding capabilities for robotics researchers and exploration science operations. VERVE includes telemetry views that show remote system status, and can be extended to support...

Articles: Photonics/Optics

The successful exploitation of hyperspectral imaging sensors depends on the availability of accurate and complete spectral signature libraries. Coupled with the appropriate spectral...

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Briefs: Photonics/Optics
Domain-Engineered Magnesium-Oxide-Doped Lithium Niobate for Lidar-Based Remote Sensing

There are several frequency conversion applications associated with lidar-based remote sensing that would benefit from the use of high-quality, complex (i.e., chirped, multi-section, or otherwise modulated) domain-engineered magnesiumoxide- doped lithium...

NASA Spinoff: Manufacturing & Prototyping
NASA Technology

In satellite images, the waters of the Pearl River, which winds around NASA’s Stennis Space Center, are about the same brownish green typical of waterways the world over....

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Briefs: Data Acquisition
Neo-Geography Toolkit (NGT)

The Neo-Geography Toolkit (NGT) is a collection of open-source software tools for the automated processing of geospatial data, including images and maps. It can process raw raster data from remote sensing instruments and transform it into useful cartographic products such as visible image base maps, topographic...

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Articles: Test & Measurement

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