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One of the more critical constraints to the continued growth of air traffic is the related concern regarding aircraft noise. This concern has resulted in increasingly stringent noise restrictions for airports, both nationally and internationally. One of the major stretch goals for NASA is to...

This IRAD (Internal Research and Development) project was conceived as an aircraft instrument and designed with specifications that are closely aligned with the science requirements of the Geostationary Coastal and Air Pollution Events (GEO-CAPE) mission. The work has been used to both advance the technology...

Mars Science Laboratory (MSL) flight software is designed to control all onboard functions of the flight system, consisting of three primary stages — cruise, entry-descent-landing (EDL), and rover — for the three mission phases. These three stages have common as well as distinct mission requirements that...

This software was developed for GSFC’s MAVEN (Mars Atmosphere and Volatile EvolutioN) program. The source of the MAVEN software was previously NASA program baselines for Juno, GRAIL, and MRO. Reused and re-engineered code from previous programs was combined with some new code to form the MAVEN program software...

Visual acuity (clearness of vision) usually is measured by an eye doctor using an eye chart. It measures the smallest letters that can be reliably identified by the patient at a specified distance. The traditional test requires the patient to look and report which letters they see.

The Time Series Product Tool (TSPT) is a MATLAB-based software application that computes and displays high-quality vegetation and environmental monitoring indices from high temporal revisit rate Moderate resolution Imaging Spectroradiometer (MODIS) and other satellite sensors. The original purpose of the...

The test complexes at John C. Stennis Space Center (SSC) require reliable and accurate data acquisition in order to analyze the results of rocket engine tests. Acquisition systems include high-speed data, low-speed data, event monitoring, and video feeds. In order to obtain accurate data, routine calibrations...

This work demonstrated the cost-saving and fault-tolerant benefits of virtualization technology by consolidating the flight software from multiple flight processors into a single virtualized system. In this study, a flight software system that was originally deployed on six...

Traffic flow management (TFM) of the National Airspace System (NAS) endeavors to deliver flights from their origins to their destinations while minimizing delays and respecting all capacities. There are several models for solving this problem. Some models aggregate...

MCT enables users to compose software from objects that can be assembled by end users to create integrated functionality. Applications are eliminated in favor of compositions of “live objects” that can be combined in different ways for different users and missions as required, in contrast to the more...

The 2014 Create the Future Design Contest – sponsored by COMSOL, Inc., Mouser Electronics, and Tech Briefs Media Group (publishers of NASA Tech Briefs) – recognized innovation in product design in seven categories: Aerospace & Defense, Automotive/Transportation, Consumer Products, Electronics,...

The most common way to generate a rate-compatible family of codes is puncturing. In this method, one starts with a low-rate mother code and then selectively discards some of the coded bits to arrive at higher-rate codes. This approach is simple, but is not free of problems. Specifically, the mother...