دوره 7, شماره 1

 

ارسال های اخیر

  • FPGA Implementation of JPEG and JPEG2000-Based Dynamic Partial Reconfiguration on SOC for Remote Sensing Satellite On-Board Processing 

    Chekini, A.؛ Naji, H. R. (پژوهشگاه هوافضا و انجمن هوافضای ایران، شماره ثبت مجوز نشریه از وزارت فرهنگ و ارشاد اسلامی 82946 مورخ 1397/07/02, 2014-03-21)
    This paper presents the design procedure and implementation results of a proposed hardware which performs different satellite Image compressions using FPGA Xilinx board. First, the method is described and then VHDL code ...

  • Effects of Some Parameters on Thermal Control of a LEO Satellite 

    Farhani, F.؛ Anvari, A. (پژوهشگاه هوافضا و انجمن هوافضای ایران، شماره ثبت مجوز نشریه از وزارت فرهنگ و ارشاد اسلامی 82946 مورخ 1397/07/02, 2014-03-21)
    Satellite thermal control ensures safe operating temperature ranges for satellite components throughout the mission life. Effects of altitude, spin, and position of satellite radiator(s) on the thermal control of a small ...

  • Reliability Determination of a Sounding Rocket Separation System Using its Reliability Block Diagram and FMEA 

    Farsi, M. A.؛ Eslami, A. A.؛ Gorgin, R. (پژوهشگاه هوافضا و انجمن هوافضای ایران، شماره ثبت مجوز نشریه از وزارت فرهنگ و ارشاد اسلامی 82946 مورخ 1397/07/02, 2014-03-21)
    Separation system is one of the most important systems in rockets. The influence of this system on mission success cannot be ignored. In this paper, reliability of a sounding rocket separation system is determined using ...

  • Approximate Viscous Shock-Layer Analysis of Axisymmetric Bodies in Perfect Gas Hypersonic Flow 

    Ghasemloo, S.؛ Noori, S. (پژوهشگاه هوافضا و انجمن هوافضای ایران، شماره ثبت مجوز نشریه از وزارت فرهنگ و ارشاد اسلامی 82946 مورخ 1397/07/02, 2014-03-21)
    In this paper, an approximate axisymmetric method is developed which can reliably calculate fully viscous hypersonic flow over blunt-nosed bodies. In this method, a Maslen's second-order pressure expression is used instead ...

  • Laminar and Turbulent Aero Heating Predictions over Blunt Body in Hypersonic Flow 

    Hosseini, S. A.؛ Noori, S. (پژوهشگاه هوافضا و انجمن هوافضای ایران، شماره ثبت مجوز نشریه از وزارت فرهنگ و ارشاد اسلامی 82946 مورخ 1397/07/02, 2014-03-21)
    In the present work, an engineering method is developed to predict laminar and turbulent heating-rate solutions for blunt reentry spacecraft at hypersonic conditions. The calculation of aerodynamic heating around blunt ...

  • Fuzzy Sliding Mode for Spacecraft Formation Control in Eccentric Orbits 

    Imani, A.؛ Bahrami, M. (پژوهشگاه هوافضا و انجمن هوافضای ایران، شماره ثبت مجوز نشریه از وزارت فرهنگ و ارشاد اسلامی 82946 مورخ 1397/07/02, 2014-03-21)
    The problem of relative motion control for spacecraft formation flying in eccentric orbits is considered in this paper. Due to the presence of nonlinear dynamics and external disturbances, a robust fuzzy sliding mode ...

  • Satellite Conceptual Design Multi-Objective Optimization Using Co Framework 

    Jafarsalehi, A.؛ Mirshams, M.؛ Emami, R. (پژوهشگاه هوافضا و انجمن هوافضای ایران، شماره ثبت مجوز نشریه از وزارت فرهنگ و ارشاد اسلامی 82946 مورخ 1397/07/02, 2014-03-21)
    This paper focuses upon the development of an efficient method for conceptual design optimization of a satellite. There are many option for a satellite subsystems that could be choice, as acceptable solution to implement ...