constants.h

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/*
 * Copyright (c) 2010 - DRS CenGen, LLC, Columbia, Maryland
 * All rights reserved.
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 * modification, are permitted provided that the following conditions
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 * * Redistributions in binary form must reproduce the above copyright
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 *   contributors may be used to endorse or promote products derived
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#ifndef EMANE_CONSTANTS_HEADER_
#define EMANE_CONSTANTS_HEADER_

namespace EMANE
{
  // min/max dBm power levels
  const float DBM_MIN = {-327.0f};
  const float DBM_MAX = {327.0f};

  const double THERMAL_NOISE_DB{-174.0};
  

  // arc seconds per degree of angle
  const double ARC_SECONDS_PER_DEGREE{3600.0};

  // milli arc seconds per degree of angle (3600 arc seconds per deg)
  const double MILLI_ARC_SECONDS_PER_DEGREE{3600.0e3};

  const double SEMI_MAJOR{6378137.0};
  const double SEMI_MINOR{6356752.3142};
  const double SEMI_MAJOR_2{SEMI_MAJOR * SEMI_MAJOR};
  const double SEMI_MINOR_2{SEMI_MINOR * SEMI_MINOR};
  const double ECC2{(SEMI_MAJOR_2 - SEMI_MINOR_2) / SEMI_MAJOR_2}; 

  // speed of light in meters per second
  const double SOL_MPS{299792458.0};

  // usec per second as a float
  const float USEC_PER_SEC_F{1.0e6};
}


#endif // EMANE_CONSTANTS_HEADER_