c#实现ecef变为enu
时间: 2023-11-22 15:47:44 浏览: 42
要实现ECEF坐标系到ENU坐标系的转换,可以使用以下C#代码:
```csharp
public static void ECEF2ENU(double[] ecef, double[] refECEF, out double[] enu)
{
double[] ecefRefN = new double[3];
double[] ecefRefE = new double[3];
double[] ecefRefU = new double[3];
double[] diff = new double[3];
// 计算参考点的经纬度
double lat = Math.Atan2(refECEF[2], Math.Sqrt(refECEF[0] * refECEF[0] + refECEF[1] * refECEF[1]));
double lon = Math.Atan2(refECEF[1], refECEF[0]);
// 计算参考点的地心坐标系下的单位向量
ecefRefN[0] = -Math.Sin(lat) * Math.Cos(lon);
ecefRefN[1] = -Math.Sin(lat) * Math.Sin(lon);
ecefRefN[2] = Math.Cos(lat);
ecefRefE[0] = -Math.Sin(lon); ecefRefE[1] = Math.Cos(lon);
ecefRefE[2] = 0;
ecefRefU[0] = Math.Cos(lat) * Math.Cos(lon);
ecefRefU[1] = Math.Cos(lat) * Math.Sin(lon);
ecefRefU[2] = Math.Sin(lat);
// 计算ECEF坐标系下的向量与参考点的差值
diff[0] = ecef[0] - refECEF[0];
diff[1] = ecef[1] - refECEF[1];
diff[2] = ecef[2] - refECEF[2];
// 计算ENU坐标系下的向量
enu = new double[3];
enu[0] = ecefRefN[0] * diff[0] + ecefRefN[1] * diff[1] + ecefRefN[2] * diff[2];
enu[1] = ecefRefE[0] * diff[0] + ecefRefE[1] * diff[1] + ecefRefE[2] * diff[2];
enu[2] = ecefRefU[0] * diff[0] + ecefRefU[1] * diff[1] + ecefRefU[2] * diff[2];
}
```
其中,`ecef`是待转换的ECEF坐标系下的向量,`refECEF`是参考点的ECEF坐标系下的向量,`enu`是转换后的ENU坐标系下的向量。