Software

360° Visual Detection and Object Tracking on an Autonomous Surface Vehicle

This software addresses the problem of an autonomous vehicle patrolling a region for objects of interest using multiple cameras. The system must identify and track the objects over time and localize their positions in the world. It implements an autonomous perception and situation awareness system, which receives images from an omnidirectional camera head, identifies objects of interest in these images, and probabilistically tracks the objects’ presences over time, even as they may exist outside of sensor range.

Posted in: Software, Briefs

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Simulation of Charge Carrier Mobility in Conducting Polymers

Electric conduction in polymers is one of the key elements in avoiding catastrophic internal electrostatic discharge in dielectrics during space missions. This software package enables the simulation of carrier mobility for any given site concentration, which is a material design parameter that can be varied in experimental studies. The software computes the charge mobility for a disordered network of carrier sites. The mobility is obtained by computing the average drift velocity for an applied electric field. The mobility is given by the ratio of the drift velocity to the electric field.

Posted in: Physical Sciences, Software, Briefs

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Observational Data Formatter Using CMOR for CMIP5

The current software has been developed to work on NASA instrument datasets, an upgrade over similar software that only worked on datasets from climate model output. NASA is attempting to reformat satellite data to fit the specific and highly detailed data format and metadata requirements for CMIP5 (Coupled Model Intercomparison Project Phase 5). This software has relieved science data teams from multiple instruments from the task of understanding and conforming to the CMIP5 data requirements.

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What They Didn’t Teach You in Engineering School About Heat Transfer

Until recently, the commercial software available for CFD typically has been geared towards specialists, limiting its widespread use. Besides being expensive, these tools have either been difficult, cumbersome or time-consuming to use. As a result, engineering analysis for applications such as heat transfer traditionally have been carried out by specialists in analysis departments, separate from mainstream design and development departments.

Posted in: Software, White Papers

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CFD for Mechanical Design Engineers - “A Paradigm Shift for Better Design”

There is demonstrated, real value in using CFD to analyze products earlier in the product development lifecycle than has been possible under the common scenario of reserving this important analysis regimen for CFD specialists.

Posted in: Software, White Papers

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Solving the System-Level Thermal Management Challenges of LEDs

As thermal management continues to be critical to LED performance, thermal simulation is playing an increasingly important role in LED system design. New generation CAD-embedded thermal and fluid simulation software makes it possible for LED systems designers to diagnose thermal problems, evaluate a large number of design alternatives quickly, and iterate rapidly to an optimal solution. Another bonus? Having a deep understanding of the computational aspects of fluid dynamics is no longer a requirement...

Posted in: Software, White Papers

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Convex Hull-Based Plume and Anomaly Detection

A number of deep space missions have imaged plumes at Io, Enceladus, and other smaller bodies. These phenomena provide valuable information regarding these bodies. To date, this imagery has been captured fortuitously. The ability to utilize onboard processing to conduct campaigns capturing large numbers of images and to detect when a plume event is occurring would open up new mission paradigms. Extended temporal campaigns could provide comprehensive detail on these events’ frequency and character.

Posted in: Physical Sciences, Software, Briefs, TSP

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