NavCom Sapphire Rev.J - Manual (Page 396)

Sapphire Technical Reference Manual Rev. J
396
latlonResidual latCor;
latCor.latlon = rev1_latlonlsb;
// convert bitfield to U08
R64 rLatX= latCor.extended.lat; // convert the lat corr to float
rLatX /= 32768.0; // convert to arc-seconds
// add the correction, yielding arc-seconds
xTmp += rLatX;
// convert the sum to degrees
xTmp = xTmp / 3600.0;
return xTmp;
}
return latitude;
}
// convert from S32 in arc-seconds scaled to 2^-11
// to R64 as degrees.minutes
R64 CNovaPVT1B::GetLongitude() // see above for lat
{
if (IsPvtRevision1OrPvtRevision2())
{
R64 xTmp = rev1_longitude;
// convert S32 to R64
xTmp = xTmp / 2048.0; // convert to arc-seconds
// pull the longitude correction
latlonResidual lonCor;
lonCor.latlon = rev1_latlonlsb;
// convert bitfield to U08
R64 rLatX= lonCor.extended.lon; // convert the lat corr to float
rLatX /= 32768.0; // convert to arc-seconds
// add the correction, yielding arc-seconds
xTmp += rLatX;
// convert the sum to degrees
xTmp = xTmp / 3600.0;
return xTmp;
}
return longitude;
}
R32 CNovaPVT1B::GetHeight()
// see above for lat,long
{
if (IsPvtRevision1OrPvtRevision2())
{
R32 xTmp = (R32) rev1_ell_height;
// convert S32 to R32
xTmp = xTmp / 1000; // convert to meters
return xTmp;
}
return height;
}