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Journal Article

Autonomy and Intelligent Technologies for Advanced Inspection Systems

2013-09-17
2013-01-2092
This paper features a set of advanced technologies for autonomy and intelligence in advanced inspection systems of facility operations. These technologies offer a significant contribution to set a path to establish a system and an operating environment with autonomy and intelligence for inspection, monitoring and safety via gas and ambient sensors, video mining and speech recognition commands on unmanned ground vehicles and other platforms to support operational activities in the Cryogenics Test bed and other facilities and vehicles. These advanced technologies are in current development and progress and their functions and operations require guidance and formulation in conjunction with the development team(s) toward the system architecture.
Technical Paper

Decision Facilitator for Launch Operations Using Intelligent Agents

2005-10-03
2005-01-3367
Launch operations require millions of micro-decisions which contribute to the macro decision of ‘Go/No-Go’ for a launch. “Knowledge workers” (such as managers and technical professionals) need information in a timely precise manner as it can greatly affect mission success. The intelligent agent (web search agent) uses the words of a hypertext markup language document which is connected through the internet. The intelligent agent’s actions are to determine if its goal of seeking a website containing a specified target (e.g., keyword or phrase), has been met. There are few parameters that should be defined for the keyword search like “Go” and “No-Go”. Instead of visiting launch and range decision making servers individually, the decision facilitator constantly connects to all servers, accumulating decisions so the final decision can be decided in a timely manner.
Technical Paper

Internet Based Simulations of Debris Dispersion of Shuttle Launch

2004-11-02
2004-01-3082
The debris dispersion model during launch is so heterogeneous and interrelated with various factors; 3D graphics combined with physical models are useful in understanding the complexity of launch and range operations. Modeling and simulation in this area mainly focuses on orbital dynamics and range safety concepts, including destruct limits, telemetry and tracking, and population risk. Particle explosion modeling is the process of simulating an explosion by breaking the rocket into many pieces. The particles are scattered throughout their motion using the laws of physics eventually coming to rest. The size of the foot print explains the type of explosion and distribution of the particles. The shuttle launch and range operations discussed in this paper are based on the operations of the Kennedy Space Center, Florida, USA. Java 3D graphics provides geometric and visual content with suitable modeling behaviors of Shuttle launches.
Technical Paper

Integration of Dynamic Models in Range Operations

2004-11-02
2004-01-3083
This work addresses various real-time model interactions in order to make an efficient Internet based decision support tool for Shuttle launches. This tool depends on launch commit criteria coupled with physics based models. Dynamic interaction between a wide variety of simulation applications and techniques, embedded algorithms, and data visualizations are needed to exploit the full potential of modeling and simulation. This paper also discusses web based 3-D graphics and its application to range safety. The advantages of this dynamic model integration are secure accessibility and distribution of real time information to other NASA centers in support of launch operations.
Technical Paper

Microphone Array Phased Processing System (MAPPS): Phased Array System for Acoustic Measurements in a Wind Tunnel

1999-10-19
1999-01-5576
A processing system has been developed to meet increasing demands for detailed noise measurement of aircraft in wind tunnels. Phased arrays enable spatial and amplitude measurements of acoustic sources, including low signal-to-noise sources not measurable by conventional measurement techniques. The Microphone Array Phased Processing System (MAPPS) provides processing and visualization of acoustic array measurements made in wind tunnels. The system uses networked parallel computers to provide noise maps at selected frequencies in a near real-time testing environment. The system has been successfully used in two subsonic, hard-walled wind tunnels, the NASA Ames 7- by 10-Foot Wind Tunnel and the NASA Ames 12-Foot Wind Tunnel. Low level airframe noise that can not be measured with traditional techniques was measured in both tests.
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