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atmospheric_gases_itu.h
1#pragma once
2
3#include "generic.h"
4#include <cstddef>
5#include <vector>
6
7class AtmosphericGasesITU : public GenericAttenuation
8{
9
10public:
11 AtmosphericGasesITU(double surface_watervap_density);
12
13 ~AtmosphericGasesITU();
14
15 typedef enum atmo_element
16 {
17 OXYGEN = 1,
18 WATER_VAPOUR = 2
19 } atmo_element_t;
20
21 double get_attenuation();
22
23private:
24 double d_temperature;
25 double d_oxygen_pressure;
26 double d_water_pressure;
27 double d_surface_watervap_density;
28
33 std::vector<std::vector<double>> d_table1{{50.474214, 0.975, 9.651, 6.69, 0, 2.566, 6.85},
34 {50.987745, 2.529, 8.653, 7.17, 0, 2.246, 6.8},
35 {51.50336, 6.193, 7.709, 7.64, 0, 1.947, 6.729},
36 {52.021429, 14.32, 6.819, 8.11, 0, 1.667, 6.64},
37 {52.542418, 31.24, 5.983, 8.58, 0, 1.388, 6.526},
38 {53.066934, 64.29, 5.201, 9.06, 0, 1.349, 6.206},
39 {53.595775, 124.6, 4.474, 9.55, 0, 2.227, 5.085},
40 {54.130025, 227.3, 3.8, 9.96, 0, 3.17, 3.75},
41 {54.67118, 389.7, 3.182, 10.37, 0, 3.558, 2.654},
42 {55.221384, 627.1, 2.618, 10.89, 0, 2.56, 2.952},
43 {55.783815, 945.3, 2.109, 11.34, 0, -1.172, 6.135},
44 {56.264774, 543.4, 0.014, 17.03, 0, 3.525, -0.978},
45 {56.363399, 1331.8, 1.654, 11.89, 0, -2.378, 6.547},
46 {56.968211, 1746.6, 1.255, 12.23, 0, -3.545, 6.451},
47 {57.612486, 2120.1, 0.91, 12.62, 0, -5.416, 6.056},
48 {58.323877, 2363.7, 0.621, 12.95, 0, -1.932, 0.436},
49 {58.446588, 1442.1, 0.083, 14.91, 0, 6.768, -1.273},
50 {59.164204, 2379.9, 0.387, 13.53, 0, -6.561, 2.309},
51 {59.590983, 2090.7, 0.207, 14.08, 0, 6.957, -0.776},
52 {60.306056, 2103.4, 0.207, 14.15, 0, -6.395, 0.699},
53 {60.434778, 2438, 0.386, 13.39, 0, 6.342, -2.825},
54 {61.150562, 2479.5, 0.621, 12.92, 0, 1.014, -0.584},
55 {61.800158, 2275.9, 0.91, 12.63, 0, 5.014, -6.619},
56 {62.41122, 1915.4, 1.255, 12.17, 0, 3.029, -6.759},
57 {62.486253, 1503, 0.083, 15.13, 0, -4.499, 0.844},
58 {62.997984, 1490.2, 1.654, 11.74, 0, 1.856, -6.675},
59 {63.568526, 1078, 2.108, 11.34, 0, 0.658, -6.139},
60 {64.127775, 728.7, 2.617, 10.88, 0, -3.036, -2.895},
61 {64.67891, 461.3, 3.181, 10.38, 0, -3.968, -2.590},
62 {65.224078, 274, 3.8, 9.96, 0, -3.528, -3.680},
63 {65.764779, 153, 4.473, 9.55, 0, -2.548, -5.002},
64 {66.302096, 80.4, 5.2, 9.06, 0, -1.660, -6.091},
65 {66.836834, 39.8, 5.982, 8.58, 0, -1.680, -6.393},
66 {67.369601, 18.56, 6.818, 8.11, 0, -1.956, -6.475},
67 {67.900868, 8.172, 7.708, 7.64, 0, -2.216, -6.545},
68 {68.431006, 3.397, 8.652, 7.17, 0, -2.492, -6.600},
69 {68.960312, 1.334, 9.65, 6.69, 0, -2.773, -6.650},
70 {118.750334, 940.3, 0.01, 16.64, 0, -0.439, 0.079},
71 {368.498246, 67.4, 0.048, 16.4, 0, 0, 0},
72 {424.76302, 637.7, 0.044, 16.4, 0, 0, 0},
73 {487.249273, 237.4, 0.049, 16, 0, 0, 0},
74 {715.392902, 98.1, 0.145, 16, 0, 0, 0},
75 {773.83949, 572.3, 0.141, 16.2, 0, 0, 0},
76 {834.145546, 183.1, 0.145, 14.7, 0, 0, 0}};
77
82 std::vector<std::vector<double>> d_table2{{22.23508, 0.1079, 2.144, 26.38, 0.76, 5.087, 1}, {67.80396, 0.0011, 8.732, 28.58, 0.69, 4.93, 0.82},
83 {119.99594, 0.0007, 8.353, 29.48, 0.7, 4.78, 0.79}, {183.310087, 2.273, 0.668, 29.06, 0.77, 5.022, 0.85},
84 {321.22563, 0.047, 6.179, 24.04, 0.67, 4.398, 0.54}, {325.152888, 1.514, 1.541, 28.23, 0.64, 4.893, 0.74},
85 {336.227764, 0.001, 9.825, 26.93, 0.69, 4.74, 0.61}, {380.197353, 11.67, 1.048, 28.11, 0.54, 5.063, 0.89},
86 {390.134508, 0.0045, 7.347, 21.52, 0.63, 4.81, 0.55}, {437.346667, 0.0632, 5.048, 18.45, 0.6, 4.23, 0.48},
87 {439.150807, 0.9098, 3.595, 20.07, 0.63, 4.483, 0.52}, {443.018343, 0.192, 5.048, 15.55, 0.6, 5.083, 0.5},
88 {448.001085, 10.41, 1.405, 25.64, 0.66, 5.028, 0.67}, {470.888999, 0.3254, 3.597, 21.34, 0.66, 4.506, 0.65},
89 {474.689092, 1.26, 2.379, 23.2, 0.65, 4.804, 0.64}, {488.490108, 0.2529, 2.852, 25.86, 0.69, 5.201, 0.72},
90 {503.568532, 0.0372, 6.731, 16.12, 0.61, 3.98, 0.43}, {504.482692, 0.0124, 6.731, 16.12, 0.61, 4.01, 0.45},
91 {547.67644, 0.9785, 0.158, 26, 0.7, 4.5, 1}, {552.02096, 0.184, 0.158, 26, 0.7, 4.5, 1},
92 {556.935985, 497, 0.159, 30.86, 0.69, 4.552, 1}, {620.700807, 5.015, 2.391, 24.38, 0.71, 4.856, 0.68},
93 {645.766085, 0.0067, 8.633, 18, 0.6, 4, 0.5}, {658.00528, 0.2732, 7.816, 32.1, 0.69, 4.14, 1},
94 {752.033113, 243.4, 0.396, 30.86, 0.68, 4.352, 0.84}, {841.051732, 0.0134, 8.177, 15.9, 0.33, 5.76, 0.45},
95 {859.965698, 0.1325, 8.055, 30.6, 0.68, 4.09, 0.84}, {899.303175, 0.0547, 7.914, 29.85, 0.68, 4.53, 0.9},
96 {902.611085, 0.0386, 8.429, 28.65, 0.7, 5.1, 0.95}, {906.205957, 0.1836, 5.11, 24.08, 0.7, 4.7, 0.53},
97 {916.171582, 8.4, 1.441, 26.73, 0.7, 5.15, 0.78}, {923.112692, 0.0079, 10.293, 29, 0.7, 5, 0.8},
98 {970.315022, 9.009, 1.919, 25.5, 0.64, 4.94, 0.67}, {987.926764, 134.6, 0.257, 29.85, 0.68, 4.55, 0.9}};
99
104 double get_temperature(double alt);
105
110 double get_pressure(double alt);
111
116 double get_water_vapour_pressure(double alt);
117
118 double geometric_to_geopotential(double alt);
119
120 double geopotential_to_geometric(double alt);
121
122 double S(size_t index, atmo_element_t element);
123
124 double F(size_t index, atmo_element_t element);
125
126 double ND();
127
128 double N(atmo_element_t element);
129
130 double gamma();
131
132 double nh(double temperature, double oxygen_pressure, double watevapour_pressure);
133
134 double a(double an, double rn, double delta);
135
136 double alpha(size_t n, double rn, double delta, double prev_alpha);
137
138 double beta(size_t n, double rn, double delta, double prev_alpha);
139};
AtmosphericGasesITU::get_attenuation
double get_attenuation()
Get the estimated attenuation. This pure virtual function MUST be implemented by every derived class.
Definition atmospheric_gases_itu.cpp:290