Special Coverage

Lightweight Internal Device to Measure Tension in Hollow- Braided Cordage
System, Apparatus, and Method for Pedal Control
Dust Tolerant Connectors
Foldable and Deployable Power Collection System
Iodine-Compatible Hall Effect Thruster
Development of a Novel Electrospinning System with Automated Positioning and Control Software
2016 Create The Future Design Contest Open For Entries
Home

Terrain Model Registration

Model registration solves target tracking and target handoff problems. Ames Research Center, Moffett Field, California This technology is a method for registration of terrain models created using stereovision on a planetary rover. Most 3D model registration approaches use some variant of iterated closest point (ICP), which minimizes a norm based on the distances between corresponding points on an arbitrary 3D surface where closest points are taken to be corresponding points. The approach taken here instead projects the two surface models into a common viewpoint, rendering the models as they would be seen from a single range sensor. Correspondence is established by determining which points on the two surfaces project to the same location on the virtual range sensor image plane. The norm of the deviations in observed depth at all pixels is used as the objective function, and the algorithm finds the rigid transformation, which minimizes the norm. This recovered transformation can be used for visual odometry, rover pose estimation, and feature handoff.

Posted in: Briefs, Software

Read More >>

Error Budget for Pointing at Surface Features From Close Range

NASA’s Jet Propulsion Laboratory, Pasadena, California Traditional error budgets that characterize pointing capability in terms of a single radial angle lack sufficient information to support analysis of pointing error in terms of distance along a nearby surface.

Posted in: Briefs, Software

Read More >>

Traceable Automation with Remote Display and Interruptible Scheduler Version 1.04.0

Many complex procedures can be completed more quickly, under controlled conditions, and without human intervention or error. NASA’s Jet Propulsion Laboratory, Pasadena, California Traceable Automation with Remote Display and Interruptible Scheduler (TARDIS) is a software set designed for use in ground operations. TARDIS is a multi-mission automation framework that supports seamless integration of manual and automatic processing. It was developed to automate mission design and navigation (MDN) procedures, but is general enough to automate many other kinds of procedures as well. It allows users to define the tasks to run and the circumstances under which to run them. Thereafter, TARDIS watches the entire host computer and automatically runs the corresponding tasks as conditions change. It also watches the tasks as they run and logs their results. It provides a graphical user interface (GUI) front end, so users can monitor and control system state and task progress from any Web browser. As a result, many complex procedures can be completed more quickly, under controlled conditions, and without human intervention or error.

Posted in: Briefs, Software

Read More >>

Java Pathfinder (JPF) Core System

Ames Research Center, Moffett Field, California The JPF Core System is a framework to analyze and verify Java bytecode programs. The major component of JPF core is an extensible and runtime-configurable virtual machine (VM) that can be customized with runtime components such as specific instruction sets and plug-ins to observe program execution. The JPF core can store and restore program states, and comes with a configuration that constitutes a standalone software model checker that can be used to detect and analyze concurrency defects in Java applications like deadlocks or data race conditions.

Posted in: Briefs, Software

Read More >>

Single Doppler Retrieval Toolkit (SingleDop)

Marshall Space Flight Center, Alabama Single-Doppler retrieval of low-level, two-dimensional winds is desired to compare ground radar wind retrievals to satellite scatterometer wind retrievals. This needs to be integrated within the growing collection of open-source radar tools maintained by the Python Atmospheric/Ocean Sciences (PyAOS) community. SingleDop is a software module written in Python that retrieves 2D, low-level winds from either real or simulated Doppler radar data.

Posted in: Briefs, Software

Read More >>

Computing Efficient Onboard Analysis and Re-Scheduling

The objective is to speed up the responsiveness to onboard decision-making. NASA’s Jet Propulsion Laboratory, Pasadena, California Prior space missions have not routinely used onboard decision-making. The Autonomous Sciencecraft (ASE), flying onboard the Earth Observing One spacecraft, has been flying autonomous agent software for the past decade that enables it to analyze acquired imagery onboard, and use that analysis to determine future imaging. However, ASE takes approximately one hour to analyze and respond.

Posted in: Briefs, Software

Read More >>

libSPRITE

Marshall Space Flight Center, Alabama libSPRITE is a set of software libraries used in the development of software applications. The libraries provide components for encoding engineering units, math functions, a task scheduler built on top of pthreads, a publish/subscribe data distribution system, and a Lua scripting language interface.

Posted in: Briefs, Software

Read More >>

The U.S. Government does not endorse any commercial product, process, or activity identified on this web site.