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Defines | |
| #define | GPS_C 299792458.0 |
| #define | GPS_C_NO_VAC (GPS_C / 1.0002926) |
| #define | GPS_CA_CHIPPING_RATE 1.023e6 |
| #define | GPS_GM 3.986005e14 |
| #define | GPS_L1_HZ 1.57542e9 |
| #define | GPS_L1_LAMBDA (GPS_C / GPS_L1_HZ) |
| #define | GPS_L1_LAMBDA_NO_VAC (GPS_C_NO_VAC / GPS_L1_HZ) |
| #define | GPS_NOMINAL_RANGE 22.980e6 |
| #define | GPS_OMEGAE_DOT 7.2921151467e-5 |
| #define | GPS_PI 3.14159265358979323846 |
Detailed Description
Constants related to the Global Positioning System. See ICD-GPS-200C.
Define Documentation
| #define GPS_C 299792458.0 |
The official GPS value of the speed of light in m / s.
- Note:
- This is the exact value of the speed of light in vacuum (by the definition of meters).
Definition at line 51 of file constants.h.
| #define GPS_C_NO_VAC (GPS_C / 1.0002926) |
The speed of light in air at standard temperature and pressure.
- Note:
- This is GPS_C / mu where mu is 1.0002926
Definition at line 55 of file constants.h.
| #define GPS_CA_CHIPPING_RATE 1.023e6 |
GPS C/A code chipping rate in Hz.
Definition at line 69 of file constants.h.
| #define GPS_GM 3.986005e14 |
Earth’s Gravitational Constant as defined in the ICD in m^3 / s^2
- Note:
- This is actually not identical to the usual WGS84 definition.
Definition at line 47 of file constants.h.
| #define GPS_L1_HZ 1.57542e9 |
The GPS L1 center frequency in Hz.
Definition at line 39 of file constants.h.
| #define GPS_L1_LAMBDA (GPS_C / GPS_L1_HZ) |
The wavelength of L1 in a vacuum.
- Note:
- This is GPS_C / GPS_L1_HZ.
Definition at line 59 of file constants.h.
| #define GPS_L1_LAMBDA_NO_VAC (GPS_C_NO_VAC / GPS_L1_HZ) |
The wavelength of L1 in air at standard temperature and pressure.
- Note:
- This is GPS_C_NO_VAC / GPS_L1_HZ.
Definition at line 63 of file constants.h.
| #define GPS_NOMINAL_RANGE 22.980e6 |
Approximate average distance to the GPS satellites in m.
Definition at line 66 of file constants.h.
| #define GPS_OMEGAE_DOT 7.2921151467e-5 |
Earth's rotation rate as defined in the ICD in rad / s
- Note:
- This is actually not identical to the usual WGS84 definition.
Definition at line 43 of file constants.h.
| #define GPS_PI 3.14159265358979323846 |
The official GPS value of Pi. This is the value used by the CS to curve fit ephemeris parameters and should be used in all ephemeris calculations.
Definition at line 36 of file constants.h.