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satellite-mobility-observer-test.cc
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1/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2/*
3 * Copyright (c) 2013 Magister Solutions Ltd
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation;
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 *
18 * Author: Sami Rantanen <sami.rantanen@magister.fi>
19 */
20
26
27#include "../model/satellite-constant-position-mobility-model.h"
28#include "../model/satellite-mobility-observer.h"
29#include "../model/satellite-propagation-delay-model.h"
30#include "../model/satellite-utils.h"
31#include "../utils/satellite-env-variables.h"
32
33#include "ns3/double.h"
34#include "ns3/log.h"
35#include "ns3/simulator.h"
36#include "ns3/singleton.h"
37#include "ns3/test.h"
38
39using namespace ns3;
40
41// definitions for reference elevation angle table, g_refElAngles
42static const uint32_t g_latitudeCount = 19;
43static const uint32_t g_longitudeCount = 37;
44
45static const double g_firstLatValue = -90.00;
46static const double g_firstLonValue = -180.00;
47
48static const double g_latStep = 10.00;
49static const double g_lonStep = 10.00;
50
51// reference test values, when sphere (radius 6378137 [m]) is used as reference ellipsoid
52// satellite is at location latitude 0.00, longitude 33.00, altitude 35786000 [m]
53// values in table are with altitude 0 [m]
54//
55// row = latitude from -90 ... 90 with 10 degrees step
56// col = longitude from -180 ... 180 with 10 degrees step
57//
58static const double g_refElAngles[g_latitudeCount][g_longitudeCount] = {
59 {
60 -8.6018742e+00, -8.6018742e+00, -8.6018742e+00, -8.6018742e+00, -8.6018742e+00,
61 -8.6018742e+00, -8.6018742e+00, -8.6018742e+00, -8.6018742e+00, -8.6018742e+00,
62 -8.6018742e+00, -8.6018742e+00, -8.6018742e+00, -8.6018742e+00, -8.6018742e+00,
63 -8.6018742e+00, -8.6018742e+00, -8.6018742e+00, -8.6018742e+00, -8.6018742e+00,
64 -8.6018742e+00, -8.6018742e+00, -8.6018742e+00, -8.6018742e+00, -8.6018742e+00,
65 -8.6018742e+00, -8.6018742e+00, -8.6018742e+00, -8.6018742e+00, -8.6018742e+00,
66 -8.6018742e+00, -8.6018742e+00, -8.6018742e+00, -8.6018742e+00, -8.6018742e+00,
67 -8.6018742e+00, -8.6018742e+00,
68 },
69
70 {
71 -1.6704625e+01, -1.7493055e+01, -1.8012186e+01, -1.8246050e+01, -1.8187401e+01,
72 -1.7838061e+01, -1.7208826e+01, -1.6318974e+01, -1.5195434e+01, -1.3871747e+01,
73 -1.2386929e+01, -1.0784340e+01, -9.1106057e+00, -7.4145745e+00, -5.7462845e+00,
74 -4.1558514e+00, -2.6922153e+00, -1.4016983e+00, -3.2637365e-01, 4.9768367e-01,
75 1.0421305e+00, 1.2878816e+00, 1.2262239e+00, 8.5934923e-01, 2.0021921e-01,
76 -7.2821655e-01, -1.8943228e+00, -3.2594126e+00, -4.7795075e+00, -6.4070521e+00,
77 -8.0924743e+00, -9.7855486e+00, -1.1436585e+01, -1.2997501e+01, -1.4422852e+01,
78 -1.5670881e+01, -1.6704625e+01,
79 },
80
81 {
82 -2.4576013e+01, -2.6154391e+01, -2.7198607e+01, -2.7670434e+01, -2.7552023e+01,
83 -2.6847888e+01, -2.5584395e+01, -2.3806912e+01, -2.1575549e+01, -1.8960673e+01,
84 -1.6039194e+01, -1.2892100e+01, -9.6032842e+00, -6.2593405e+00, -2.9498717e+00,
85 2.3226561e-01, 3.1913676e+00, 5.8305290e+00, 8.0550058e+00, 9.7774715e+00,
86 1.0924793e+01, 1.1445248e+01, 1.1314514e+01, 1.0538752e+01, 9.1538106e+00,
87 7.2208060e+00, 4.8194220e+00, 2.0406964e+00, -1.0192362e+00, -4.2636521e+00,
88 -7.5978706e+00, -1.0930338e+01, -1.4172702e+01, -1.7239467e+01, -2.0047834e+01,
89 -2.2518238e+01, -2.4576013e+01,
90 },
91
92 {
93 -3.2150830e+01, -3.4559650e+01, -3.6169920e+01, -3.6902409e+01, -3.6718280e+01,
94 -3.5627470e+01, -3.3686477e+01, -3.0986701e+01, -2.7639000e+01, -2.3760356e+01,
95 -1.9465727e+01, -1.4865194e+01, -1.0065058e+01, -5.1713370e+00, -2.9441703e-01,
96 4.4461307e+00, 8.9176003e+00, 1.2972465e+01, 1.6450908e+01, 1.9189792e+01,
97 2.1039320e+01, 2.1885576e+01, 2.1672558e+01, 2.0414606e+01, 1.8193117e+01,
98 1.5139226e+01, 1.1410534e+01, 7.1704160e+00, 2.5744409e+00, -2.2357749e+00,
99 -7.1331465e+00, -1.2002325e+01, -1.6735261e+01, -2.1226341e+01, -2.5368068e+01,
100 -2.9048360e+01, -3.2150830e+01,
101 },
102
103 {
104 -3.9340005e+01, -4.2663495e+01, -4.4926798e+01, -4.5969303e+01, -4.5706421e+01,
105 -4.4160181e+01, -4.1450862e+01, -3.7756269e+01, -3.3266805e+01, -2.8156901e+01,
106 -2.2575234e+01, -1.6647050e+01, -1.0482042e+01, -4.1841877e+00, 2.1377900e+00,
107 8.3595752e+00, 1.4330196e+01, 1.9861842e+01, 2.4723918e+01, 2.8648396e+01,
108 3.1356671e+01, 3.2613755e+01, 3.2296196e+01, 3.0436121e+01, 2.7209219e+01,
109 2.2875939e+01, 1.7715647e+01, 1.1983180e+01, 5.8918217e+00, -3.8641798e-01,
110 -6.7125435e+00, -1.2969801e+01, -1.9052647e+01, -2.4856049e+01, -3.0265212e+01,
111 -3.5146265e+01, -3.9340005e+01,
112 },
113
114 {
115 -4.6006510e+01, -5.0377333e+01, -5.3449005e+01, -5.4896833e+01, -5.4529539e+01,
116 -5.2398361e+01, -4.8765619e+01, -4.3969265e+01, -3.8312737e+01, -3.2027268e+01,
117 -2.5278415e+01, -1.8185662e+01, -1.0841716e+01, -3.3289119e+00, 4.2661058e+00,
118 1.1837327e+01, 1.9241765e+01, 2.6277592e+01, 3.2658732e+01, 3.7994962e+01,
119 4.1806163e+01, 4.3619473e+01, 4.3158455e+01, 4.0497024e+01, 3.6015197e+01,
120 3.0207381e+01, 2.3523617e+01, 1.6311315e+01, 8.8197845e+00, 1.2243958e+00,
121 -6.3490162e+00, -1.3804110e+01, -2.1057702e+01, -2.8025122e+01, -3.4605077e+01,
122 -4.0662117e+01, -4.6006510e+01,
123 },
124
125 {
126 -5.1930043e+01, -5.7520985e+01, -6.1664013e+01, -6.3706420e+01, -6.3181670e+01,
127 -6.0221250e+01, -5.5425332e+01, -4.9408454e+01, -4.2595155e+01, -3.5239767e+01,
128 -2.7490147e+01, -1.9435029e+01, -1.1133295e+01, -2.6328414e+00, 6.0148092e+00,
129 1.4739663e+01, 2.3433938e+01, 3.1922592e+01, 3.9915329e+01, 4.6932754e+01,
130 5.2230631e+01, 5.4870709e+01, 5.4190691e+01, 5.0376730e+01, 4.4284022e+01,
131 3.6803157e+01, 2.8567067e+01, 1.9969144e+01, 1.1246230e+01, 2.5419583e+00,
132 -6.0538155e+00, -1.4480449e+01, -2.2689549e+01, -3.0630706e+01, -3.8235778e+01,
133 -4.5396738e+01, -5.1930043e+01,
134 },
135
136 {
137 -5.6763473e+01, -6.3721803e+01, -6.9350213e+01, -7.2406072e+01, -7.1595300e+01,
138 -6.7322356e+01, -6.1051957e+01, -5.3761638e+01, -4.5899432e+01, -3.7661064e+01,
139 -2.9133792e+01, -2.0356792e+01, -1.1348040e+01, -2.1185707e+00, 7.3174061e+00,
140 1.6932120e+01, 2.6669719e+01, 3.6421102e+01, 4.5972840e+01, 5.4890661e+01,
141 6.2253932e+01, 6.6299419e+01, 6.5223137e+01, 5.9587071e+01, 5.1443019e+01,
142 4.2196812e+01, 3.2529315e+01, 2.2765306e+01, 1.3067511e+01, 3.5195690e+00,
143 -5.8361176e+00, -1.4978614e+01, -2.3896132e+01, -3.2576186e+01, -4.0994468e+01,
144 -4.9096993e+01, -5.6763473e+01,
145 },
146
147 {
148 -6.0018125e+01, -6.8243134e+01, -7.5780862e+01, -8.0930434e+01, -7.9407340e+01,
149 -7.2901185e+01, -6.5003558e+01, -5.6632347e+01, -4.8002623e+01, -3.9171269e+01,
150 -3.0147310e+01, -2.0921952e+01, -1.1479516e+01, -1.8030130e+00, 8.1215023e+00,
151 1.8300042e+01, 2.8723815e+01, 3.9357750e+01, 5.0116479e+01, 6.0796148e+01,
152 7.0799966e+01, 7.7720429e+01, 7.5667940e+01, 6.6957660e+01, 5.6556579e+01,
153 4.5806960e+01, 3.5082849e+01, 2.4526346e+01, 1.4198272e+01, 4.1213054e+00,
154 -5.7027141e+00, -1.5283649e+01, -2.4637188e+01, -3.3780337e+01, -4.2726850e+01,
155 -5.1480271e+01, -6.0018125e+01,
156 },
157
158 {
159 -6.1181558e+01, -6.9969924e+01, -7.8698721e+01, -8.7394065e+01, -8.3918289e+01,
160 -7.5212668e+01, -6.6463206e+01, -5.7643574e+01, -4.8726780e+01, -3.9685056e+01,
161 -3.0489905e+01, -2.1112394e+01, -1.1523783e+01, -1.6966442e+00, 8.3934130e+00,
162 1.8765296e+01, 2.9429276e+01, 4.0383351e+01, 5.1609653e+01, 6.3071832e+01,
163 7.4714498e+01, 8.6465700e+01, 8.1757338e+01, 7.0040060e+01, 5.8461787e+01,
164 4.7088358e+01, 3.5967660e+01, 2.5128442e+01, 1.4581832e+01, 4.3244734e+00,
165 -5.6577772e+00, -1.5386361e+01, -2.4887136e+01, -3.4188224e+01, -4.3318546e+01,
166 -5.2306916e+01, -6.1181558e+01,
167 },
168
169 {
170 -6.0018125e+01, -6.8243134e+01, -7.5780862e+01, -8.0930434e+01, -7.9407340e+01,
171 -7.2901185e+01, -6.5003558e+01, -5.6632347e+01, -4.8002623e+01, -3.9171269e+01,
172 -3.0147310e+01, -2.0921952e+01, -1.1479516e+01, -1.8030130e+00, 8.1215023e+00,
173 1.8300042e+01, 2.8723815e+01, 3.9357750e+01, 5.0116479e+01, 6.0796148e+01,
174 7.0799966e+01, 7.7720429e+01, 7.5667940e+01, 6.6957660e+01, 5.6556579e+01,
175 4.5806960e+01, 3.5082849e+01, 2.4526346e+01, 1.4198272e+01, 4.1213054e+00,
176 -5.7027141e+00, -1.5283649e+01, -2.4637188e+01, -3.3780337e+01, -4.2726850e+01,
177 -5.1480271e+01, -6.0018125e+01,
178 },
179
180 {
181 -5.6763473e+01, -6.3721803e+01, -6.9350213e+01, -7.2406072e+01, -7.1595300e+01,
182 -6.7322356e+01, -6.1051957e+01, -5.3761638e+01, -4.5899432e+01, -3.7661064e+01,
183 -2.9133792e+01, -2.0356792e+01, -1.1348040e+01, -2.1185707e+00, 7.3174061e+00,
184 1.6932120e+01, 2.6669719e+01, 3.6421102e+01, 4.5972840e+01, 5.4890661e+01,
185 6.2253932e+01, 6.6299419e+01, 6.5223137e+01, 5.9587071e+01, 5.1443019e+01,
186 4.2196812e+01, 3.2529315e+01, 2.2765306e+01, 1.3067511e+01, 3.5195690e+00,
187 -5.8361176e+00, -1.4978614e+01, -2.3896132e+01, -3.2576186e+01, -4.0994468e+01,
188 -4.9096993e+01, -5.6763473e+01,
189 },
190
191 {
192 -5.1930043e+01, -5.7520985e+01, -6.1664013e+01, -6.3706420e+01, -6.3181670e+01,
193 -6.0221250e+01, -5.5425332e+01, -4.9408454e+01, -4.2595155e+01, -3.5239767e+01,
194 -2.7490147e+01, -1.9435029e+01, -1.1133295e+01, -2.6328414e+00, 6.0148092e+00,
195 1.4739663e+01, 2.3433938e+01, 3.1922592e+01, 3.9915329e+01, 4.6932754e+01,
196 5.2230631e+01, 5.4870709e+01, 5.4190691e+01, 5.0376730e+01, 4.4284022e+01,
197 3.6803157e+01, 2.8567067e+01, 1.9969144e+01, 1.1246230e+01, 2.5419583e+00,
198 -6.0538155e+00, -1.4480449e+01, -2.2689549e+01, -3.0630706e+01, -3.8235778e+01,
199 -4.5396738e+01, -5.1930043e+01,
200 },
201
202 {
203 -4.6006510e+01, -5.0377333e+01, -5.3449005e+01, -5.4896833e+01, -5.4529539e+01,
204 -5.2398361e+01, -4.8765619e+01, -4.3969265e+01, -3.8312737e+01, -3.2027268e+01,
205 -2.5278415e+01, -1.8185662e+01, -1.0841716e+01, -3.3289119e+00, 4.2661058e+00,
206 1.1837327e+01, 1.9241765e+01, 2.6277592e+01, 3.2658732e+01, 3.7994962e+01,
207 4.1806163e+01, 4.3619473e+01, 4.3158455e+01, 4.0497024e+01, 3.6015197e+01,
208 3.0207381e+01, 2.3523617e+01, 1.6311315e+01, 8.8197845e+00, 1.2243958e+00,
209 -6.3490162e+00, -1.3804110e+01, -2.1057702e+01, -2.8025122e+01, -3.4605077e+01,
210 -4.0662117e+01, -4.6006510e+01,
211 },
212
213 {
214 -3.9340005e+01, -4.2663495e+01, -4.4926798e+01, -4.5969303e+01, -4.5706421e+01,
215 -4.4160181e+01, -4.1450862e+01, -3.7756269e+01, -3.3266805e+01, -2.8156901e+01,
216 -2.2575234e+01, -1.6647050e+01, -1.0482042e+01, -4.1841877e+00, 2.1377900e+00,
217 8.3595752e+00, 1.4330196e+01, 1.9861842e+01, 2.4723918e+01, 2.8648396e+01,
218 3.1356671e+01, 3.2613755e+01, 3.2296196e+01, 3.0436121e+01, 2.7209219e+01,
219 2.2875939e+01, 1.7715647e+01, 1.1983180e+01, 5.8918217e+00, -3.8641798e-01,
220 -6.7125435e+00, -1.2969801e+01, -1.9052647e+01, -2.4856049e+01, -3.0265212e+01,
221 -3.5146265e+01, -3.9340005e+01,
222 },
223
224 {
225 -3.2150830e+01, -3.4559650e+01, -3.6169920e+01, -3.6902409e+01, -3.6718280e+01,
226 -3.5627470e+01, -3.3686477e+01, -3.0986701e+01, -2.7639000e+01, -2.3760356e+01,
227 -1.9465727e+01, -1.4865194e+01, -1.0065058e+01, -5.1713370e+00, -2.9441703e-01,
228 4.4461307e+00, 8.9176003e+00, 1.2972465e+01, 1.6450908e+01, 1.9189792e+01,
229 2.1039320e+01, 2.1885576e+01, 2.1672558e+01, 2.0414606e+01, 1.8193117e+01,
230 1.5139226e+01, 1.1410534e+01, 7.1704160e+00, 2.5744409e+00, -2.2357749e+00,
231 -7.1331465e+00, -1.2002325e+01, -1.6735261e+01, -2.1226341e+01, -2.5368068e+01,
232 -2.9048360e+01, -3.2150830e+01,
233 },
234
235 {
236 -2.4576013e+01, -2.6154391e+01, -2.7198607e+01, -2.7670434e+01, -2.7552023e+01,
237 -2.6847888e+01, -2.5584395e+01, -2.3806912e+01, -2.1575549e+01, -1.8960673e+01,
238 -1.6039194e+01, -1.2892100e+01, -9.6032842e+00, -6.2593405e+00, -2.9498717e+00,
239 2.3226561e-01, 3.1913676e+00, 5.8305290e+00, 8.0550058e+00, 9.7774715e+00,
240 1.0924793e+01, 1.1445248e+01, 1.1314514e+01, 1.0538752e+01, 9.1538106e+00,
241 7.2208060e+00, 4.8194220e+00, 2.0406964e+00, -1.0192362e+00, -4.2636521e+00,
242 -7.5978706e+00, -1.0930338e+01, -1.4172702e+01, -1.7239467e+01, -2.0047834e+01,
243 -2.2518238e+01, -2.4576013e+01,
244 },
245
246 {
247 -1.6704625e+01, -1.7493055e+01, -1.8012186e+01, -1.8246050e+01, -1.8187401e+01,
248 -1.7838061e+01, -1.7208826e+01, -1.6318974e+01, -1.5195434e+01, -1.3871747e+01,
249 -1.2386929e+01, -1.0784340e+01, -9.1106057e+00, -7.4145745e+00, -5.7462845e+00,
250 -4.1558514e+00, -2.6922153e+00, -1.4016983e+00, -3.2637365e-01, 4.9768367e-01,
251 1.0421305e+00, 1.2878816e+00, 1.2262239e+00, 8.5934923e-01, 2.0021921e-01,
252 -7.2821655e-01, -1.8943228e+00, -3.2594126e+00, -4.7795075e+00, -6.4070521e+00,
253 -8.0924743e+00, -9.7855486e+00, -1.1436585e+01, -1.2997501e+01, -1.4422852e+01,
254 -1.5670881e+01, -1.6704625e+01,
255 },
256
257 {
258 -8.6018742e+00, -8.6018742e+00, -8.6018742e+00, -8.6018742e+00, -8.6018742e+00,
259 -8.6018742e+00, -8.6018742e+00, -8.6018742e+00, -8.6018742e+00, -8.6018742e+00,
260 -8.6018742e+00, -8.6018742e+00, -8.6018742e+00, -8.6018742e+00, -8.6018742e+00,
261 -8.6018742e+00, -8.6018742e+00, -8.6018742e+00, -8.6018742e+00, -8.6018742e+00,
262 -8.6018742e+00, -8.6018742e+00, -8.6018742e+00, -8.6018742e+00, -8.6018742e+00,
263 -8.6018742e+00, -8.6018742e+00, -8.6018742e+00, -8.6018742e+00, -8.6018742e+00,
264 -8.6018742e+00, -8.6018742e+00, -8.6018742e+00, -8.6018742e+00, -8.6018742e+00,
265 -8.6018742e+00, -8.6018742e+00,
266 }};
267
294class SatMobilityObserverTestCase : public TestCase
295{
296 public:
297 SatMobilityObserverTestCase();
298 virtual ~SatMobilityObserverTestCase();
299
300 private:
301 virtual void DoRun(void);
302};
303
304SatMobilityObserverTestCase::SatMobilityObserverTestCase()
305 : TestCase("Test satellite mobility observer model.")
306{
307}
308
312
313void
314SatMobilityObserverTestCase::DoRun(void)
315{
316 // Set simulation output details
317 SatEnvVariables::GetInstance()->DoInitialize();
318 SatEnvVariables::GetInstance()->SetOutputVariables("test-sat-mobility-observer", "", true);
319
320 // create mobilities
321 Ptr<SatConstantPositionMobilityModel> gwMob = CreateObject<SatConstantPositionMobilityModel>();
322 Ptr<SatConstantPositionMobilityModel> utMob = CreateObject<SatConstantPositionMobilityModel>();
323 Ptr<SatConstantPositionMobilityModel> satMob = CreateObject<SatConstantPositionMobilityModel>();
324
325 // create propagation delays
326 Ptr<SatConstantPropagationDelayModel> gwProgDelay =
327 CreateObject<SatConstantPropagationDelayModel>();
328 Ptr<SatConstantPropagationDelayModel> utProgDelay =
329 CreateObject<SatConstantPropagationDelayModel>();
330
331 // set propagation delays
332 gwProgDelay->SetDelay(Seconds(200));
333 utProgDelay->SetDelay(Seconds(300));
334
335 // set satellite position, altitude is the Earth radius
336 double earthRadius =
337 CalculateDistance(GeoCoordinate(0.00, 0.00, 0.00).ToVector(), Vector(0, 0, 0));
338 GeoCoordinate satellitePosition = GeoCoordinate(0.00, 0.00, earthRadius);
339 satMob->SetGeoPosition(satellitePosition);
340
341 // set some positions to UT and GW
342 gwMob->SetGeoPosition(GeoCoordinate(0.00, 0.00, 0.00));
343 utMob->SetGeoPosition(GeoCoordinate(0.00, 0.00, 0.00));
344
345 // create mobility observers
346 Ptr<SatMobilityObserver> utObserver = CreateObject<SatMobilityObserver>(utMob, satMob);
347 Ptr<SatMobilityObserver> gwObserver = CreateObject<SatMobilityObserver>(gwMob, satMob);
348
349 utObserver->ObserveTimingAdvance(utProgDelay, gwProgDelay, gwMob);
350 double timingAdvance = utObserver->GetTimingAdvance().GetSeconds();
351
352 // check that we use correct earth radius
353 NS_TEST_ASSERT_MSG_EQ(earthRadius, 6378137, "Earth radius is not what expected");
354
355 // check that timing advance is correct
356 NS_TEST_ASSERT_MSG_EQ(timingAdvance, 500, "Timing Advance incorrect");
357
358 // Test that we get 0 degrees elevation angle at range points, where we stop seeing satellite
359 gwMob->SetGeoPosition(GeoCoordinate(60.00, 0.00, 0.00));
360 utMob->SetGeoPosition(GeoCoordinate(00.0, 60.00, 0.00));
361
362 double utEl = utObserver->GetElevationAngle();
363 double gwEl = gwObserver->GetElevationAngle();
364
365 NS_TEST_ASSERT_MSG_EQ(utEl, 0, "UT elevation angle incorrect");
366 NS_TEST_ASSERT_MSG_EQ(gwEl, 0, "GW elevation angle incorrect");
367
368 gwMob->SetGeoPosition(GeoCoordinate(-60.0, 0.00, 0.00));
369 utMob->SetGeoPosition(GeoCoordinate(0.00, -60.00, 0.00));
370
371 utEl = utObserver->GetElevationAngle();
372 gwEl = gwObserver->GetElevationAngle();
373
374 NS_TEST_ASSERT_MSG_EQ(utEl, 0, "UT elevation angle incorrect");
375 NS_TEST_ASSERT_MSG_EQ(gwEl, 0, "GW elevation angle incorrect");
376
377 gwMob->SetGeoPosition(GeoCoordinate(45.00, 45.00, 0.00));
378 utMob->SetGeoPosition(GeoCoordinate(-45.00, -45.00, 0.00));
379
380 utEl = utObserver->GetElevationAngle();
381 gwEl = gwObserver->GetElevationAngle();
382
383 NS_TEST_ASSERT_MSG_EQ(utEl, 0, "UT elevation angle incorrect");
384 NS_TEST_ASSERT_MSG_EQ(gwEl, 0, "GW elevation angle incorrect");
385
386 gwMob->SetGeoPosition(GeoCoordinate(-45.00, 45.00, 0.00));
387 utMob->SetGeoPosition(GeoCoordinate(45.00, -45.00, 0.00));
388
389 utEl = utObserver->GetElevationAngle();
390 gwEl = gwObserver->GetElevationAngle();
391
392 NS_TEST_ASSERT_MSG_EQ(utEl, 0, "UT elevation angle incorrect");
393 NS_TEST_ASSERT_MSG_EQ(gwEl, 0, "GW elevation angle incorrect");
394
395 // Test that we get valid elevation angle at points where we should see satellite
396
397 gwMob->SetGeoPosition(GeoCoordinate(44.01, 45.00, 0.00));
398 utMob->SetGeoPosition(GeoCoordinate(45.00, -42.00, 0.00));
399
400 utEl = utObserver->GetElevationAngle();
401 gwEl = gwObserver->GetElevationAngle();
402
403 NS_TEST_ASSERT_MSG_EQ(std::isnan(utEl), false, "UT elevation angle incorrect");
404 NS_TEST_ASSERT_MSG_EQ(std::isnan(gwEl), false, "GW elevation angle incorrect");
405
406 gwMob->SetGeoPosition(GeoCoordinate(10.0, 10.00, 0.00));
407 utMob->SetGeoPosition(GeoCoordinate(0.00, 0.00, 0.00));
408
409 utEl = utObserver->GetElevationAngle();
410 gwEl = gwObserver->GetElevationAngle();
411
412 NS_TEST_ASSERT_MSG_EQ(std::isnan(utEl), false, "UT elevation angle incorrect");
413 NS_TEST_ASSERT_MSG_EQ(std::isnan(gwEl), false, "GW elevation angle incorrect");
414
415 // Test that we get invalid elevation angle at points where we shouldn't see satellite
416
417 gwMob->SetGeoPosition(GeoCoordinate(45.01, 45.00, 0.00));
418 utMob->SetGeoPosition(GeoCoordinate(45.00, -45.01, 0.00));
419
420 utEl = utObserver->GetElevationAngle();
421 gwEl = gwObserver->GetElevationAngle();
422
423 NS_TEST_ASSERT_MSG_EQ(std::isnan(utEl), true, "UT elevation angle incorrect");
424 NS_TEST_ASSERT_MSG_EQ(std::isnan(gwEl), true, "GW elevation angle incorrect");
425
426 gwMob->SetGeoPosition(GeoCoordinate(90.0, 0.00, 0.00));
427 utMob->SetGeoPosition(GeoCoordinate(0.00, 180.00, 0.00));
428
429 utEl = utObserver->GetElevationAngle();
430 gwEl = gwObserver->GetElevationAngle();
431
432 NS_TEST_ASSERT_MSG_EQ(std::isnan(utEl), true, "UT elevation angle incorrect");
433 NS_TEST_ASSERT_MSG_EQ(std::isnan(gwEl), true, "GW elevation angle incorrect");
434
435 // Test that we get correct elevation angle with our reference satellite
436
437 satellitePosition.SetLatitude(0.00);
438 satellitePosition.SetLongitude(33.00);
439 satellitePosition.SetAltitude(35786000.00);
440 satMob->SetGeoPosition(satellitePosition);
441
442 Ptr<UniformRandomVariable> randAlt = CreateObject<UniformRandomVariable>();
443 randAlt->SetAttribute("Min", DoubleValue(-200.00));
444 randAlt->SetAttribute("Max", DoubleValue(600.00));
445
446 gwObserver->SetAttribute("MinAltitude", DoubleValue(-200.00));
447 gwObserver->SetAttribute("MaxAltitude", DoubleValue(600.00));
448
449 for (uint32_t i = 0; i < g_latitudeCount; i++)
450 {
451 for (uint32_t j = 0; j < g_longitudeCount; j++)
452 {
453 double lat = g_firstLatValue + (double)i * g_latStep;
454 double lon = g_firstLonValue + (double)j * g_lonStep;
455 double alt = randAlt->GetValue();
456
457 gwMob->SetGeoPosition(GeoCoordinate(lat, lon, alt));
458 gwEl = gwObserver->GetElevationAngle();
459 double refValue = g_refElAngles[i][j];
460
461 if (refValue < 0)
462 {
463 // NAN should be returned, because only points where we can see satellite is
464 // accepted
465 NS_TEST_ASSERT_MSG_EQ(std::isnan(gwEl),
466 true,
467 "UT elevation angle incorrect: lat-> " << lat << " lon-> "
468 << " alt->" << alt);
469 }
470 else
471 {
472 // valid values should be returned and it should be inside tolerance
473 NS_TEST_ASSERT_MSG_EQ(std::isnan(gwEl),
474 false,
475 "UT elevation angle incorrect (NAN): lat-> "
476 << lat << " lon-> " << " alt" << alt);
477 NS_TEST_ASSERT_MSG_EQ_TOL(gwEl,
478 refValue,
479 0.00001,
480 "UT elevation angle incorrect: lat-> " << lat << " lon-> "
481 << " alt" << alt);
482 }
483 }
484 }
485
486 Simulator::Destroy();
487
488 SatEnvVariables::GetInstance()->DoDispose();
489}
490
494class SatMobilityObserverTestSuite : public TestSuite
495{
496 public:
497 SatMobilityObserverTestSuite();
498};
499
500SatMobilityObserverTestSuite::SatMobilityObserverTestSuite()
501 : TestSuite("sat-mobility-observer-test", Type::UNIT)
502{
503 AddTestCase(new SatMobilityObserverTestCase, TestCase::Duration::QUICK);
504}
505
506// Do allocate an instance of this TestSuite
507static SatMobilityObserverTestSuite satSatMobilityObserverTestSuite;
SatMobilityObserverTestCase
Test case to unit test Satellite Mobility Observer.
Definition satellite-mobility-observer-test.cc:295
SatMobilityObserverTestSuite
Test suite for Satellite mobility observer unit test cases.
Definition satellite-mobility-observer-test.cc:495
ns3::GeoCoordinate
GeoCoordinate class is used to store and operate with geodetic coordinates.
Definition geo-coordinate.h:42
ns3::GeoCoordinate::SetAltitude
void SetAltitude(double altitude)
Sets altitude value of coordinate.
Definition geo-coordinate.cc:237
ns3::GeoCoordinate::SetLatitude
void SetLatitude(double latitude)
Sets latitude value of coordinate.
Definition geo-coordinate.cc:224
ns3::GeoCoordinate::SetLongitude
void SetLongitude(double longitude)
Sets longitude value of coordinate.
Definition geo-coordinate.cc:211
ns3::SatEnvVariables::GetInstance
static Ptr< SatEnvVariables > GetInstance()
Definition satellite-env-variables.cc:135
ns3
SatArqSequenceNumber is handling the sequence numbers for the ARQ process.
Definition sat-link-results-plot.cc:41
g_firstLonValue
static const double g_firstLonValue
Definition satellite-mobility-observer-test.cc:46
g_firstLatValue
static const double g_firstLatValue
Definition satellite-mobility-observer-test.cc:45
g_longitudeCount
static const uint32_t g_longitudeCount
Definition satellite-mobility-observer-test.cc:43
g_latitudeCount
static const uint32_t g_latitudeCount
Definition satellite-mobility-observer-test.cc:42
g_lonStep
static const double g_lonStep
Definition satellite-mobility-observer-test.cc:49
g_refElAngles
static const double g_refElAngles[g_latitudeCount][g_longitudeCount]
Definition satellite-mobility-observer-test.cc:58
satSatMobilityObserverTestSuite
static SatMobilityObserverTestSuite satSatMobilityObserverTestSuite
Definition satellite-mobility-observer-test.cc:507
g_latStep
static const double g_latStep
Definition satellite-mobility-observer-test.cc:48