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Real-Time Aerodynamic Parameter Estimation Without Airflow Angle Measurements

Langley Research Center, Hampton, Virginia Accurate measurements of airflow angles are among the most expensive and difficult to obtain in flight testing because of the complexity of the airflow near the aircraft and the consequent need to carefully mount and calibrate the sensors. A novel technique was developed for determining aerodynamic stability and control parameters from flight data in real time, without airflow angle measurements (airflow angle and sideslip angle).

Posted in: Briefs, TSP

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Method for Improving Control Systems with Normalized Adaptation by Optimal Control Modification

Ames Research Center, Moffett Field, California A new technology has been developed for improving performance and stability of control systems. This method represents a significant advancement in the state-of-the-art of adaptive control technology. The present invention is a new type of adaptive control law, called optimal control modification, which blends two control technologies together: optimal control and adaptive control.

Posted in: Briefs

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Airborne Coordinated Conflict Resolution and Detection (ACCoRD) Framework

This is a prototype implementation of a mathematical framework for state-based conflict detection and resolution algorithms. Langley Research Center, Hampton, Virginia To accommodate the predicted increase in air traffic, the next generation of air traffic management (ATM) systems relies on operational concepts where the responsibility for separation is distributed between airborne and ground systems. These distributed modes of operation are enabled by new positioning and communication technology that provides precise state information for ownship and traffic aircraft. A critical component of a distributed ATM system is the airborne conflict detection and resolution (CD&R) system. A CD&R system warns pilots about predicted traffic conflicts and advises them on resolution maneuvers.

Posted in: Briefs, TSP

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Integrated Pitot Health Monitoring System

John H. Glenn Research Center, Cleveland, Ohio The health and integrity of aircraft sensors and instruments play a critical role in aviation safety. Inaccurate or false readings due to icing of airspeed sensors in flight can lead to improper decision-making, resulting in serious consequences. Icing or blockages of pitot airspeed sensors provide very little indication of sensor malfunction. Sensor output may indicate high, low, or nonfunctioning state, and not be responsive to actual changes in airspeed.

Posted in: Briefs, TSP

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NASA Aircraft Management Information System (NAMIS)

Lyndon B. Johnson Space Center, Houston, Texas The NASA Aircraft Management Information System (NAMIS) is an Enterprise Resource Planning/Mission Support software suite designed to meet both the mission support requirements and the business management requirements of NASA Johnson Space Center’s (JSC) Aircraft Operations Division (AOD). The concept and 11 high-level requirements were conceived in 1996. NAMIS was then developed over a period of 12 years in a series of modular, integrated components designed to meet those 11 requirements. The requirements were adopted by NASA’s Intercenter Aircraft Operations Panel (IAOP) in March 2003 as the basis for defining a common aircraft management solution for use at all NASA centers to replace both legacy systems and paper-based systems with one integrated software solution to track aircraft-related activities for NASA.

Posted in: Briefs, TSP

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Sector 33 App

Ames Research Center, Moffett Field, California Sector 33 is a mobile app for the Apple and Android mobile platforms that provides a single-user, interactive air traffic control simulator (game) for mobile devices. The main features of the app include an interactive air traffic control simulation with numerous problems for two to five airplanes; introductory videos on air traffic control; scoring for the problems; awards for reaching levels of achievement; integrated solution hints; a short introduction to the simulator; help; and hints for simple proportional reasoning math needed to solve the problems perfectly.

Posted in: Briefs

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Retinal Light Processing Using Carbon Nanotubes

This chip can be used as an electrical or optical sensor for the retina. Ames Research Center, Moffett Field, California NASA has patented a new technology called the Vision Chip, an implantable device that has the potential to restore or supplement visual function in a diseased or damaged retina. This technology could benefit millions of people in the US and globally who suffer from degenerative diseases of the eye’s retina such as age-related macular degeneration (AMD), retinitis pigmentosa (RP), and, in some cases, diabetic retinopathy. The Vision Chip is targeted to treat AMD and other degenerative diseases of the retina by replacing a compromised retinal photoreceptor system with an array of equivalent external photoreceptors and carbon nanotube (CNT) “towers” (bundles of CNTs) that provide a pathway to transmit signals from the external photoreceptors to an active layer of retina.

Posted in: Briefs

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