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  • Regulations and Requirements

     Prats Menéndez, Xavier; Ramírez Alcantara, Jorge; Delgado Muñoz, Luis; Royo Chic, Pablo
    Date of publication: 2012-04
    Book chapter

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  • Requirements, issues, and challenges for sense and avoid in Unmanned Aircraft Systems

     Prats Menéndez, Xavier; Delgado Muñoz, Luis; Ramírez Alcantara, Jorge; Royo Chic, Pablo; Pastor Llorens, Enrique
    Journal of aircraft
    Date of publication: 2012-05
    Journal article

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    The sense and avoid capability is one of the greatest challenges that has to be addressed to safely integrate unmanned aircraft systems into civil and nonsegregated airspace. This paper gives a review of existing regulations, recommended practices, and standards in sense and avoid for unmanned aircraft systems. Gaps and issues are identified, as are the different factors that are likely to affect actual sense and avoid requirements. It is found that the operational environment (flight altitude, meteorological conditions, and class of airspace) plays an important role when determining the type of flying hazards that the unmanned aircraft system might encounter. In addition, the automation level and the data-link architecture of the unmanned aircraft system are key factors that will definitely determine the sense and avoid system requirements. Tactical unmanned aircraft, performing similar missions to general aviation, are found to be the most challenging systems from an sense and avoid point of view, and further research and development efforts are still needed before their seamless integration into nonsegregated airspace.

  • INTELLIGENT COMMUNICATIONS, OPERATIONS AND AVIONICS FOR ROBUST (UN)MANNED AERIAL SYSTEMS

     Barrado Muxí, Cristina; Prats Menéndez, Xavier; Royo Chic, Pablo; Santamaria Barnadas, Eduard; López Rubio, Juan; Ramírez Alcantara, Jorge; Delgado Muñoz, Luis; Salamí San Juan, Esther; Valero Garcia, Miguel; Pastor Llorens, Enrique
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  • Mart XXI o de com anar de la secundària a la universitat passant per Mart

     Almansa Lagunas, Clara; Blay Carreras, Estel; Casas Carbonell, Montserrat; Delgado Muñoz, Luis; Gutierrez Cabello, Jorge Luis; Jove Casulleras, Roger; Lopez Codina, Daniel; López Rubio, Juan; Loren Aguilar, Pablo; Marando, Graciela; Monfort Peligero, Lluís; Nebra, Norbert; Pera, Francesc; Portell Canal, Xavier; Ramírez Alcantara, Jorge; Sagardoy, Juli; Sánchez, Álex
    Date: 2011-11-22
    Report

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  • Mission formalism for UAS based navaid flight inspections

     Santamaria Barnadas, Eduard; Perez Batlle, Marcos; Ramírez Alcantara, Jorge; Barrado Muxí, Cristina; Pastor Llorens, Enrique
    Aviation Technology, Integration, and Operations
    Presentation's date: 2009-09
    Presentation of work at congresses

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    In previous work UAS have been proposed as the platform of choice for performing Navaid Flight Inspections. It is expected that the use of these platforms will significantly reduce time and monetary costs, but a number of issues must be addressed for UAS to become a real alternative. An important requirement for flight inspection missions is to minimize their impact on other air traffic. In this paper we focus on provisioning UAS with a level of operational agility comparable to that provided by a human on-board pilot. To avoid conflicts, the unmanned vehicle must be able to momentarily interrupt and later on resume the inspection operations in an automated manner. In this paper we analyze the operational requirements for a specific inspection mission and design a flight plan for its execution. Afterwards, a flight plan specification formalism, that will enable us to perform the inspection mission in a highly automated manner, is presented. Finally, we demonstrate how the flight plan design is translated to a suitable representation using this formalism and how the required operational agility is achieved.

  • A proposal for using UAS in radio navigation aids flight inspection

     Ramírez Alcantara, Jorge; Barrado Muxí, Cristina; Pastor Llorens, Enrique; García, J.C.
    AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
    Presentation's date: 2009-01-08
    Presentation of work at congresses

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  • Increasing eu security through the development of unmanned aerial

     Barrado Muxí, Cristina; Prats Menéndez, Xavier; Royo Chic, Pablo; Santamaria Barnadas, Eduard; López Rubio, Juan; Ramírez Alcantara, Jorge; Delgado Muñoz, Luis; Salamí San Juan, Esther; Pastor Llorens, Enrique
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  • Programa Platino

     Barrado Muxí, Cristina; Prats Menéndez, Xavier; Royo Chic, Pablo; Santamaria Barnadas, Eduard; López Rubio, Juan; Ramírez Alcantara, Jorge; Delgado Muñoz, Luis; Salamí San Juan, Esther; Pastor Llorens, Enrique
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  • Proposta AEROSEC Call Security (Novembre 2009)

     Delgado Muñoz, Luis; Prats Menéndez, Xavier; López Rubio, Juan; Barrado Muxí, Cristina; Santamaria Barnadas, Eduard; Ramírez Alcantara, Jorge; Royo Chic, Pablo; Salamí San Juan, Esther; Pastor Llorens, Enrique
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  • Projecte mima: valorización tecnológica sistema de mission management per uas

     Barrado Muxí, Cristina; Prats Menéndez, Xavier; Royo Chic, Pablo; Santamaria Barnadas, Eduard; López Rubio, Juan; Ramírez Alcantara, Jorge; Delgado Muñoz, Luis; Salamí San Juan, Esther; Pastor Llorens, Enrique
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  • NavAid Flight Inspection Optimization with UAS Technology

     Ramírez Alcantara, Jorge; Barrado Muxí, Cristina; Pastor Llorens, Enrique
    International Symposium on Precision Approach and Performance Based Navigation
    Presentation's date: 2008-10-15
    Presentation of work at congresses

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  • Smooth UAV: Evaluation and new strategies for the smooth integration of civil mission oriented UAV in non-segregated airspace

     Pastor Llorens, Enrique; Barrado Muxí, Cristina; Prats Menéndez, Xavier; Royo Chic, Pablo; Santamaria Barnadas, Eduard; López Rubio, Juan; Ramírez Alcantara, Jorge; Delgado Muñoz, Luis; Salamí San Juan, Esther; Perez Batlle, Marcos
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    Navaid flight inspection optimisation with UAS technology  Open access

     Ramírez Alcantara, Jorge; Barrado Muxí, Cristina; Pastor Llorens, Enrique
    International Symposium on Precision Approach and Performance Based Navigation
    Presentation of work at congresses

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    Current society requires to the aerial transport system (since decades ago) the capability to fly, in a safe manner, with unfavorable visibility conditions (night flies, with fog, among the clouds). This requirement makes the use of Radio Navigation Aids critical for the Aerial Transport System. Those NavAids could be seen as radiofrequency emitters which emission structure and geographic location allows the users (the flying aircrafts) to compute its position and course in an homogeneous way. Since the functional objective of a NavAid is to provide a radio-frequency emission with a known structure (spectrum, timing, power...) in order to identify this emission with the known site position, it shall be demonstrated that this emission corresponds with the standard. For this demonstration, a set of parameters shall be measured from the point of view of the final user. I.e: they shall be measured from the air, which is the place where they are used. The current use of general purpose aircrafts for flight inspection of NavAids provides the authorities with the magnitudes to be inspected measured in the same place that they are used but it has a big inconvenience: its price. This proposal has as its masterpiece the study of the technological and regulatory constraints of NavAids flight inspection using the UAS technology. This use allows the separation of the flight inspection in two segments: I. Air Segment. Essential elements in the air, antennas, sensors, data storage... II. Ground Segment. All those elements not strictly necessary for the ongoing inspection, spare parts, capability to carry personnel and ground equipment... Thanks to this, several benefits are obtained: With the proper use of telecommunications the inspection, platform could be seen (from a mission viewpoint) as a network of computers interacting in a common mission. The Air Segment could be resized, replacing the existing aircrafts (large, expensive of acquire and to maintain) by UAS adjusted to the needs in Flight Inspection: to carry sensors in the area to observe. This would bring flights the inherent characteristics of these devices: lower cost of the platform, lower operating costs, increased availability... Several aerial vehicles could be used simultaneously, reporting to a single Ground Segment station. By this provision, different areas could be simultaneously inspected reducing the number of coordinated actions with air navigation and decreasing the time of the inspection Flight. Summarizing: lower costs per flight test.

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    BAETULO XXI, o de com arribar a Mart des de la secundària  Open access

     Ayza, Assumpta; Berenguer Sau, Jordi; Carnerero Lopez, Sheila; Crespo Artiaga, Daniel; Lopez Codina, Daniel; López Rubio, Juan; Loren Aguilar, Pablo; Melo Vera, Maria Jesús; Monfort Peligero, Lluís; Pijuan, Caterina; Portell Canal, Xavier; Ramírez Alcantara, Jorge; Serrano Porta, Lydia
    Congrés d'Enginyeria i Cultura Catalana
    Presentation's date: 2008-12-05
    Presentation of work at congresses

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  • Intelligent Communications and Avionics for Robust Unmanned (Aerial) Systems (ICARUS)

     Pastor Llorens, Enrique; Barrado Muxí, Cristina; Prats Menéndez, Xavier; Royo Chic, Pablo; Santamaria Barnadas, Eduard; López Rubio, Juan; Ramírez Alcantara, Jorge; Solé Simó, Marc; Peña Basurto, Marco Antonio
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  • AUTOMATIC ECONOMIC RECONFIGURABLE UAV SYSTEM

     Pastor Llorens, Enrique; Barrado Muxí, Cristina; Prats Menéndez, Xavier; Royo Chic, Pablo; Santamaria Barnadas, Eduard; López Rubio, Juan; Ramírez Alcantara, Jorge; Delgado Muñoz, Luis; Salamí San Juan, Esther
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