21 #include "uan-noise-model-default.h"
22 #include "ns3/double.h"
28 NS_OBJECT_ENSURE_REGISTERED (UanNoiseModelDefault);
30 UanNoiseModelDefault::UanNoiseModelDefault ()
35 UanNoiseModelDefault::~UanNoiseModelDefault ()
40 UanNoiseModelDefault::GetTypeId (
void)
42 static TypeId tid = TypeId (
"ns3::UanNoiseModelDefault")
44 .AddConstructor<UanNoiseModelDefault> ()
45 .AddAttribute (
"Wind",
"Wind speed in m/s",
47 MakeDoubleAccessor (&UanNoiseModelDefault::m_wind),
48 MakeDoubleChecker<double> (0))
49 .AddAttribute (
"Shipping",
"Shipping contribution to noise between 0 and 1",
51 MakeDoubleAccessor (&UanNoiseModelDefault::m_shipping),
52 MakeDoubleChecker<double> (0,1))
62 double turb, wind, ship, thermal;
63 double turbDb, windDb, shipDb, thermalDb, noiseDb;
65 turbDb = 17.0 - 30.0 * std::log10 (fKhz);
66 turb = std::pow (10.0, turbDb * 0.1);
68 shipDb = 40.0 + 20.0 * (m_shipping - 0.5) + 26.0 * std::log10 (fKhz) - 60.0 * std::log10 (fKhz + 0.03);
69 ship = std::pow (10.0, (shipDb * 0.1));
71 windDb = 50.0 + 7.5 * std::pow (m_wind, 0.5) + 20.0 * std::log10 (fKhz) - 40.0 * std::log10 (fKhz + 0.4);
72 wind = std::pow (10.0, windDb * 0.1);
74 thermalDb = -15 + 20 * std::log10 (fKhz);
75 thermal = std::pow (10, thermalDb * 0.1);
77 noiseDb = 10 * std::log10 (turb + ship + wind + thermal);
virtual double GetNoiseDbHz(double fKhz) const