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https://gitlab.ibr.cs.tu-bs.de/tschuber/ns-3-leo.git
synced 2025-06-08 18:13:57 +02:00
Move utils to thesis
This commit is contained in:
Tim Schubert
parent
ab0fcddb3e
commit
10c4cdda49
11 changed files with 2 additions and 191 deletions
1
utils/.gitignore
vendored
1
utils/.gitignore
vendored
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.venv/
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#!/usr/bin/env python3
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import logging as log
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import fileinput
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from sys import argv
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from skyfield.api import Topos, load
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log.basicConfig(level=log.DEBUG)
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"""
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Converts pairs of format `name longitute latitude` to `ns3::Vector` format in ITRF frame
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See `ns3::Vector::operator >>`
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"""
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def isogeo():
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for i in range(-60,60,5):
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for j in range(-180,180,5):
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yield "foo,%f,%f" % (i, j)
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"""
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Stores the vector data
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"""
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class Vector:
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def __init__(self, x, y, z):
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self.x = x
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self.y = y
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self.z = z
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def __repr__(self):
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return "%f:%f:%f" % (self.x, self.y, self.z)
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if __name__ == "__main__":
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if len(argv) > 1:
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if argv[1] == "-r":
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f = isogeo()
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else:
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f = fileinput.input(argv[1])
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else:
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f = fileinput.input()
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for line in f:
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_, lat, lng = line.split(',')
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location = Topos(float(lat), float(lng))
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d = location.itrf_xyz().m
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print(Vector(d[0], d[1], d[2]))
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@ -1,30 +0,0 @@
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#!/bin/sh
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set -u
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set -e
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search=$1
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# Get the ids of sats matching the search term
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if [ ! -f ids.txt ]
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then
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curl https://celestrak.com/pub/satcat.txt | grep "$search" | cut -b14-18 > ids.txt
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fi
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# Download TLE data for each sat
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while read id
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do
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if [ ! -f $id.txt ]
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then
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wget "https://celestrak.com/satcat/tle.php?CATNR=$id" -O $id.txt
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fi
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# 6000 s ~ 95 min ~ 1 orbital period
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done < ids.txt
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while read id
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do
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if [ ! -f $id.waypoints ]
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then
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./tle2wps.py $id.txt 2020 08 28 6000 > $id.waypoints
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fi
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done < ids.txt
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set datafile separator comma
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set key autotitle columnheader
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set xrange [-180:180]
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set yrange [-90:90]
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set grid
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set size ratio -1
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set xlabel "Latitude"
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set ylabel "Longitude"
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set term pdfcairo font "Nexus,12" size 20cm,10cm
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set output 'airports.pdf'
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plot '../data/ground-stations/airports.csv' using 3:2
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set datafile separator ",:"
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set key autotitle columnheader
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set terminal gif animate size 2000,2000
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set output 'output.gif'
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unset xtics
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unset ytics
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unset ztics
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unset border
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set xrange [-8e6:8e6]
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set yrange [-8e6:8e6]
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set zrange [-8e6:8e6]
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set parametric
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set isosamples 20,20
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unset key
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unset title
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set hidden3d
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# number of nodes per time slot
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EARTH=6.370e6
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sats=ARG1
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ground=ARG2
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numsats=ARG3
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numsamples=ARG4
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do for [j=0:numsamples-1] {
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splot [-pi:pi][-pi/2:pi/2] EARTH*cos(u)*cos(v), EARTH*sin(u)*cos(v), EARTH*sin(v), \
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ground using 1:2:3 lt rgb "green", \
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sats using 3:4:5:2 every ::(j*numsats)::((j+1)*numsats)
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}
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@ -1,3 +0,0 @@
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#!/bin/sh
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shuf $1 | head -n $2 | ./geo2vec.py
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skyfield==1.26
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#!/usr/bin/env python3
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"""
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Creates a stream of waypoints using SGP4 and two-line element (TLE) information
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Up-to-date TLEs can be obtained from [Celestrak](https://celestrak.com/satcat/search.php)
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"""
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import logging as log
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import argparse
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from datetime import datetime
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from skyfield.api import EarthSatellite, Time, load, utc
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log.basicConfig(level=log.DEBUG)
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"""
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Class for exporting `ns3::Waypoint` in its own serialized format.
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See `ns3::Waypoint::operator <<`
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"""
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class Waypoint:
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def __init__(self, time, x, y, z):
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self.time = time
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self.x = x
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self.y = y
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self.z = z
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def __repr__(self):
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return("%fs $ %f:%f:%f" % (self.time, self.x, self.y, self.z))
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"""
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Use Skyfield to generate the waypoints
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"""
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if __name__ == "__main__":
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parser = argparse.ArgumentParser(description='Process some integers.')
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parser.add_argument('tle', type=str, help='Two-line element data')
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parser.add_argument('year', type=int, help='year to start at')
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parser.add_argument('month', type=int, help='month to start at')
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parser.add_argument('day', type=int, help='day to start at')
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parser.add_argument('duration', type=int, help='duration in seconds')
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args = parser.parse_args()
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ts = load.timescale(builtin=True)
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sats = load.tle_file(args.tle)
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log.info("Loaded %d satellites" % len(sats))
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duration = args.duration
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for sat in sats:
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log.info("Generating waypoints for %s" % sat.name)
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# skyfield will automatically overflow the seconds and produce the next correct second
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t_start = ts.utc(year=args.year, month=args.month, day=args.day)
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for t in ts.utc(year=args.year, month=args.month, day=args.day, second=range(1, duration, 1)):
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geocentric = sat.at(t)
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t_rel = (t.tai - t_start.tai) * 10**5
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d = geocentric.itrf_xyz().m
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wp = Waypoint(t_rel, d[0], d[1], d[2])
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print(wp)
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4
wscript
4
wscript
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@ -12,6 +12,7 @@ def build(bld):
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'helper/arp-cache-helper.cc',
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'helper/isl-helper.cc',
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'helper/leo-channel-helper.cc',
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'helper/leo-input-fstream-container.cc',
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'helper/leo-orbit-node-helper.cc',
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'helper/nd-cache-helper.cc',
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'helper/ground-node-helper.cc',
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'model/mock-channel.cc',
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'model/isl-mock-channel.cc',
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'model/isl-propagation-loss-model.cc',
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'utils/leo-input-fstream-container.cc',
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]
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module_test = bld.create_ns3_module_test_library('leo')
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'helper/arp-cache-helper.h',
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'helper/isl-helper.h',
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'helper/leo-channel-helper.h',
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'helper/leo-input-fstream-container.h',
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'helper/leo-orbit-node-helper.h',
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'helper/nd-cache-helper.h',
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'helper/ground-node-helper.h',
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'model/mock-channel.h',
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'model/isl-mock-channel.h',
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'model/isl-propagation-loss-model.h',
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'utils/leo-input-fstream-container.h',
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]
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if bld.env.ENABLE_EXAMPLES:
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