/// <summary>
/// 通过载波作差求取的电离层与硬件延迟的系数。f1^2/(f1^2-f2^2)
/// </summary>
/// <param name="satelliteType"></param>
/// <returns></returns>
internal static double GetIonoAndDcbOfL2CoeffL1L2(SatelliteType satelliteType)
{
var f1 = Frequence.GetFrequenceA(satelliteType);
var f2 = Frequence.GetFrequenceB(satelliteType);
double f1f1 = f1.Value * f1.Value;
double f2f2 = f2.Value * f2.Value;
var val = 1.0 * f1f1 / (f1f1 - f2f2);
return(val);
}