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137 lines
2.9 KiB
C++
137 lines
2.9 KiB
C++
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Tim Schubert <ns-3-leo@timschubert.net>
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*/
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#ifndef LEO_CIRCULAR_ORBIT_MOBILITY_MODEL_H
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#define LEO_CIRCULAR_ORBIT_MOBILITY_MODEL_H
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#include "ns3/vector.h"
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#include "ns3/object.h"
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#include "ns3/log.h"
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#include "ns3/mobility-model.h"
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#include "ns3/nstime.h"
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#define LEO_EARTH_RAD_KM 6371.0090
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#define LEO_EARTH_GM_KM_E10 39.8600436
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namespace ns3 {
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/**
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* \ingroup leo
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* \brief Keep track of the orbital postion and velocity of a satellite.
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*
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* This uses simple circular orbits based on the inclination of the orbital
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* plane and the height of the satellite.
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*/
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class LeoCircularOrbitMobilityModel : public MobilityModel
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{
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public:
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/**
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* Register this type with the TypeId system.
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* \return the object TypeId
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*/
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static TypeId GetTypeId (void);
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LeoCircularOrbitMobilityModel ();
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virtual ~LeoCircularOrbitMobilityModel ();
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/**
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* km/s
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*/
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double GetSpeed () const;
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double GetAltitude () const;
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void SetAltitude (double h);
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double GetInclination () const;
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void SetInclination (double incl);
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private:
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/**
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* Orbit height in m
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*/
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double m_orbitHeight;
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/**
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* Inclination in rad
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*/
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double m_inclination;
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/**
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* Longitudinal offset in rad
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*/
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double m_longitude;
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/**
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* Offset on the orbital plane in rad
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*/
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double m_offset;
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/**
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* Current position
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*/
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Vector3D m_position;
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/**
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* Time precision for positions
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*/
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Time m_precision;
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/**
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* \return the current position.
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*/
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virtual Vector DoGetPosition (void) const;
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/**
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* \param position the position to set.
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*/
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virtual void DoSetPosition (const Vector &position);
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/**
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* \return the current velocity.
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*/
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virtual Vector DoGetVelocity (void) const;
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/**
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* Get the normal vector of the orbital plane
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*/
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Vector3D PlaneNorm () const;
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double GetProgress (Time t) const;
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/**
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* Advances a satellite by a degrees on the orbital plane
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*/
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Vector3D RotatePlane (double a, const Vector3D &x) const;
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/**
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* Calculate the position at time
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*
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* \param t time
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*/
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Vector CalcPosition (Time t) const;
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/**
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* Calc the latitude depending on simulation time inside ITRF coordinate
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* system
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*/
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double CalcLatitude () const;
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Vector Update ();
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};
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}
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#endif
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