Aeronautical Radio, Incorporated (ARINC), established in 1929, was a major provider of transport communications and systems engineering solutions for eight industries: aviation, airports, defense, government, healthcare, networks, security, and transportation. ARINC had installed computer data networks in police cars and railroad cars and also maintains the standards for line-replaceable units.[citation needed]ARINC was formerly headquartered in Annapolis, Maryland, and had two regional headquarters in London, established in 1999 to serve the Europe, Middle East, and Africa region, and Singapore, established in 2003 for the Asia Pacific region. ARINC had more than 3,200 employees at over 120 locations worldwide.The sale of the company by Carlyle Group to Rockwell Collins was completed on December 23, 2013, and from November 2018 onward operates as part of Collins Aerospace.
In this paper, A neural network estimation-based nonlinear predictive model control(NN-NMPC) method is proposed to improve the station-keeping performance for a multi-vectored propeller airship. First, the kinematic model and dynamic model of the airship is introduced, and the station-keeping control problem is formulated. Then, a nonlinear model predictive control strategy, combined with radial basis function neural network(RBFNN) approximation is specified to the station-keeping problem, and the stability analysis is implemented. Finally, the simulation results are illustrated to prove the robustness and effectiveness of the proposed NN-NMPC controller. Simulation results show that NN-NMPC method can attenuate the unknown parameters of the airship effectively and drive it to the desired fixed point.
This paper summarizes the accomplishments of RTCA, Inc.'s Special Committee 159 (SC-159) over the past 30 years including the many documents that SC-159 has produced. The paper emphasizes the importance of these documents towards the adoption of the Global Positioning System (GPS) for civil aviation applications through their widespread use by the Federal Aviation Administration (FAA), other civil aviation authorities, the International Civil Aviation Organization (ICAO), and other organizations. Lastly, the paper describes a recently approved update to SC-159's Terms of Reference for new products to be developed from the present time through 2023.
Beginning in the late 70's, the Aircraft Communications Addressing and Reporting System (ACARS) has evolved from a basic pilot time tracing system to a two-way communications system for Airline Operational Control (AOC), tracking aircraft movement, and providing critical performance information, such as engine health. In the 90's Air Traffic Services (ATS) and Air Traffic Control (ATC) two-way communications were added. Typical ATC Infrastructure has thoroughly addressed the security of the ground to ground data communications network. However, another area of Data Communications Information Assurance that should be investigated is the ground to cockpit link. This paper proposes a plan to investigate that link.
We present the methods and results for the figure testing and spectral calibration of the narrow- and wide-band etalons for the Improved Solar Observing Optical Network's dual-etalon tunable imaging filters. The ISOON system comprises a distributed network of ground-based patrol telescopes that gather full-disk data for the monitoring of solar activity and for the development of more reliable space weather models. The etalon figure testing consists mainly of testing the cavity flatness and coating uniformity of each etalon. For this testing a series of exposures is taken as the etalon is tuned through a stable spectral line and a full-aperture line profile correlation method is employed to map the variations in the effective cavity thickness. Calibration of the etalons includes absolute calibration of the cavity mean spacing change corresponding to a controller step and calibration of plate parallelism and spacing settings for each spectral region of interest. Developmental acceptance testing and calibration procedures were performed in a laboratory environment using a HeNe laser source. A calibration method that uses illumination in the telluric lines is also described. This latter method could be used to conduct calibration in the field without the use of an artificial light source.
