Now showing items 1-20 of 111

    • A case study for the verification of complex timed circuits: IPCMOS 

      Peña Basurto, Marco Antonio; Cortadella, Jordi; Pastor Llorens, Enric; Smirnov, Alexandre (Institute of Electrical and Electronics Engineers (IEEE), 2002)
      Conference report
      Open Access
      The verification of a n-stage pulse-driven IPCMOS pipeline, for any n>0, is presented. The complexity of the system is 32n transistors and delay information is provided at the level of transistor The correctness of the ...
    • A hardware/software architecture for UAV payload and mission control 

      Pastor Llorens, Enric; López Rubio, Juan; Royo Chic, Pablo (2006)
      Conference report
      Open Access
      This paper presents an embedded hardware/software architecture specially designed to be applied on mini/micro Unmanned Aerial Vehicles (UAV). An UAV is low-cost non-piloted airplane designed to operate in D-cube ...
    • A macroscopic performance analysis of NASA’s northrop grumman RQ-4A 

      Pastor Llorens, Enric; Pérez Batlle, Marcos; Barrado Muxí, Cristina; Royo Chic, Pablo; Cuadrado Santolaria, Raúl (Multidisciplinary Digital Publishing Institute (MDPI), 2018-01-10)
      Article
      Open Access
      This paper presents the process of identification, from a macroscopic point of view, of the Northrop Grumman RQ-4A Global Hawk Remote-Piloted Aircraft System from real, but limited flight information. Performance parameters ...
    • A methodology for measuring the impact on flight inefficiency of future RPAS operations 

      Pérez Batlle, Marcos; Tadeo, Carlos; Pastor Llorens, Enric (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Conference report
      Restricted access - publisher's policy
      This paper presents a simple methodology for measuring the impact on flight inefficiency of future Remotely-Piloted Aircraft Systems (RPAS) operations. State-of-the-art inefficiency metrics have been selected and adapted ...
    • A Middleware architecture for Unmanned Aircraft Avionics 

      López, Juan; Royo Chic, Pablo; Pastor Llorens, Enric; Barrado Muxí, Cristina; Santamaria Barnadas, Eduard (Uiversity of Irvine, 2007-11)
      Conference report
      Open Access
      An Unmanned Aerial Vehicle is a non-piloted airplane designed to operate in dangerous and repetitive situations. With the advent of UAV's civil applications, UAVs are emerging as a valid option in commercial scenarios. ...
    • A new look at the conditions for the synthesis of speed-independent circuits 

      Pastor Llorens, Enric; Cortadella, Jordi; Roig Mansilla, Oriol (Institute of Electrical and Electronics Engineers (IEEE), 1995)
      Conference report
      Open Access
      This paper presents a set of sufficient conditions for the gate-level synthesis of speed-independent circuits when constrained to a given class of gate library. Existing synthesis methodologies are restricted to architectures ...
    • A new technique based on mini-UAS for estimating water and bottom radiance contributions in optically shallow waters 

      Montes Hugo, J. M.; Barrado Muxí, Cristina; Pastor Llorens, Enric (International Society for Photogrammetry and Remote Sensing (ISPRS), 2015)
      Conference report
      Open Access
      The mapping of nearshore bathymetry based on spaceborne radiometers is commonly used for QC ocean colour products in littoral waters. However, the accuracy of these estimates is relatively poor with respect to those derived ...
    • A novel methodology to predict regulations using deep learning 

      Mas Pujol, Sergi; Salamí San Juan, Esther; Pastor Llorens, Enric (Single European Sky ATM Research (SESAR), 2020)
      Conference report
      Open Access
      The current air traffic control system tries to allocate as many flights as possible in a scenario that is expected to be time-efficient, cost-efficient, and safe. To guaranty these safety conditions, it is performed a ...
    • A proposal for using UAS in radio navigation aids flight inspection 

      Ramírez Alcántara, Jorge; Barrado Muxí, Cristina; Pastor Llorens, Enric; García, J.C. (2009)
      Conference report
      Open Access
      The main objective of this paper is to contribute to the inherent necessity of the aerialtransport system to guarantee the safety of its users in an efficient manner. This efficiency isrequired to accomplish the objective ...
    • A Rudimentary Machine. Experiences in the Design of a Pedagogic Computer 

      Pastor Llorens, Enric; Sánchez Carracedo, Fermín; Corral González, Anna M. del (Publicat en web, 1999-07)
      Article
      Open Access
      This paper describes a pedagogic computer named \M aquina Rudimentaria". This computer has been de- signed to be used in a rst course on logic design or com- puter architecture; orthogonality and simplicity have been the ...
    • A structural encoding technique for the synthesis of asynchronous circuits 

      Carmona Vargas, Josep; Cortadella, Jordi; Pastor Llorens, Enric (Institute of Electrical and Electronics Engineers (IEEE), 2001)
      Conference report
      Open Access
      This paper presents a method for the automatic synthesis of asynchronous circuits from Petri net specifications. The method is based on a structural encoding of the system in such a way that a circuit implementation is ...
    • A Structural encoding technique for the synthesis of asynchronous circuits 

      Carmona Vargas, Josep; Cortadella, Jordi; Pastor Llorens, Enric (2000-12)
      External research report
      Open Access
      This paper presents a method for the automatic synthesis of asynchronous circuits from Petri net specifications. The method is based on a structural encoding of the system in such a way that a circuit implementation is ...
    • A taxonomy of UAS separation maneuvers and their automated execution 

      Pérez Batlle, Marcos; Pastor Llorens, Enric; Royo Chic, Pablo; Prats Menéndez, Xavier; Barrado Muxí, Cristina (2012)
      Conference report
      Open Access
      This paper proposes to create a taxonomy of separation conflicts between Unmanned Aerial Systems (UAS) and intruding aircrafts to facilitate its insertion in non-segregated airspace. The classification is created according ...
    • A telemetry modeling for intelligent UAV monitoring 

      Tristancho Martínez, Joshua; Barrado Muxí, Cristina; Pérez Mansilla, Sonia; Pastor Llorens, Enric (2009-10-19)
      Conference report
      Open Access
      An Unmanned Aerial Vehicle, UAV for short, is able to fly autonomously during all phases of flight, but has to be monitored from an operator station. In this article a better avionic system is proposed to optimize this ...
    • Advances in UAS for forest fire fighting 

      Pastor Llorens, Enric; Barrado Muxí, Cristina; López, Juan; Prats Menéndez, Xavier; Ramírez Alcántara, Jorge; Royo Chic, Pablo; Santamaria Barnadas, Eduard (Universidad Politécnica de Madrid, 2007)
      Conference report
      Open Access
    • An architecture for the development of complex UAS missions 

      Pastor Llorens, Enric; Barrado Muxí, Cristina; Royo Chic, Pablo; López Rubio, Juan; Santamaria Barnadas, Eduard (2009)
      Conference report
      Open Access
      The generalized development of UAS complex applications are still limited by the absence of systems that support the implementation of the actual mission. UAS design faces the development of specific systems to control ...
    • An architecture for the seamless integration of UAS 

      Pastor Llorens, Enric; Barrado Muxí, Cristina; López Rubio, Juan; Royo Chic, Pablo; Santamaria Barnadas, Eduard; Prats Menéndez, Xavier (2009)
      Conference lecture
      Restricted access - publisher's policy
    • An architecture for the seamless integration of UAS remote sensing missions 

      Pastor Llorens, Enric; Barrado Muxí, Cristina; Royo Chic, Pablo; López Rubio, Juan; Santamaria Barnadas, Eduard; Prats Menéndez, Xavier (2009)
      Conference report
      Open Access
      Unmanned Aerial Systems (UAS) are slowing becoming e cient platforms that can be applied in scienti c/commercial remote sensing applications. UAS may o er interesting bene ts in terms of cost, exibility, endurance, ...
    • An architecture to automate UAS operations in non-segregated airspace 

      Pastor Llorens, Enric; Royo Chic, Pablo; Santamaria Barnadas, Eduard; Pérez Batlle, Marcos; Barrado Muxí, Cristina; Prats Menéndez, Xavier (2011)
      Conference report
      Open Access
      Technology evolution in the field of Unmanned Aircraft Systems (UAS) will affect the Air Traffic Management (ATM) performance regarding to new military and civil applications. UAS, as new airspace users, will represent new ...
    • An Assessment for UAS depart and approach operations 

      Delgado Muñoz, Luis; Prats Menéndez, Xavier; Ferraz, Carlos; Royo Chic, Pablo; Pastor Llorens, Enric (2009-09)
      Conference lecture
      Restricted access - publisher's policy