Now showing items 1-3 of 3

    • Global analysis of direct transfers from lunar orbits to sun-earth libration point regimes 

      Masdemont Soler, Josep; Gómez Muntané, Gerard; Peng, Hao (Springer Nature, 2021-04-01)
      Article
      Open Access
      In this paper we look forward to obtain a global picture of simple transfer opportunities from Lunar to Sun-Earth libration orbits, useful for a preliminary design of these mission scenarios. Considering the trajectory of ...
    • Libration transfer design using patched elliptic three-body models and graphics processing units 

      Peng, Hao; Bai, Xiaoli; Masdemont Soler, Josep; Gómez Muntané, Gerard; Xu, Shijie (2017-01-01)
      Article
      Open Access
      Copyright © 2016 by the American Institute of Aeronautics and Astronautics, Inc. Design of the transfer from lunar orbits to the sun-Earth libration point region by direct searching in the highfidelity ephemeris model is ...
    • Modelling of quantization effects in digitally controlled dc-dc converters 

      Peng, Hao; Aleksandar, Prodic; Alarcón Cot, Eduardo José; Maksimovic, Eduard Alarcón And Dragan (Institute of Electrical and Electronics Engineers (IEEE), 2006-11)
      Article
      Restricted access - publisher's policy
      In digitally controlled dc-dc converters with a single voltage feedback loop, the two quantizers, namely the analog-to-digital (A/D) converter and the digital pulse-width modulator (DPWM), can cause undesirable limit-cycle ...