地心地固坐标系(ECEF)是一种以地球质心为原点、以地球自转轴为Z轴的直角坐标系。它通过将经纬度(LLA)坐标转换为地球上的某一点在X、Y、Z方向上的距离,从而描述点在地球上的三维位置。 LLA转换成ECEF的公式 经纬度(LLA)坐标可以通过以下公式转换为地心地固坐标系(ECEF)坐标: x = (N + h) * cos(lat) * ...
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ECEF坐标系下点(X,Y,Z)转换为LLA坐标系下的(lon,lat,alt) 一开始lon是未知的,可以假设为0,经过几次迭代之后就能收敛 2.3 ECEF坐标系转ENU坐标系 用户所在坐标原点 ,,计算点 在以点 为坐标原点的ENU坐标系位置(e,n,u)这里需要用到LLA坐标系的数据, 的LLA坐标点为 2.4 ENU坐标系转ECEF坐标系 2.5 LLA坐...
def ecef_to_lla(ecef): #earths's radius in meters a = 6378137 #eccentricity e = 8.1819190842622e-2 asq = math.pow(a,2) esq = math.pow(e,2) x = ecef[0] y = ecef[1] z = ecef[2] b = math.sqrt( asq * (1-esq) ) bsq = math.pow(b,2) ep = math.sqrt( (asq - bsq...
def lla2ecef(lla: Sequence[float], cst: ConstantsFile, lla_as_degrees: bool=False) -> Tuple[float, float, float]: """ converts LLA (Latitude, Longitude, Altitude) coordinates to ECEF (Earth-Centre, Earth-First) XYZ coordinates. """ lat, lon, alt = lla if lla_as_degrees: lat =...
#convert lat/lon/alt coords to ECEF without geoid correction, WGS84 model #remember that alt is in meters def llh2ecef((lat, lon, alt)): def llh2ecef(lla): lat, lon, alt = lla lat *= (math.pi / 180.0) lon *= (math.pi / 180.0) Expand All @@ -84,7 +86,8 @@ def ll...
wgs84conv is a accurate & fast Earth-Fixed Earth-Centered (ECEF) to Geodetic (lla) convert module based on: Karl Osen. Accurate Conversion of Earth-Fixed Earth-Centered Coordinates to Geodetic Coordinates.[Research Report] Norwegian University of Science and Technology. 2017. hal-01704943v2 And ...
navsat.position_covariance_type= NavSatFix.COVARIANCE_TYPE_KNOWN#Compute the radius of curvature in theN =1.0*a/np.sqrt(1-e2*(np.sin(float(msg[2])*np.pi/180.0)**2))#Compute and store the ECEF positionrtk.x = (N+float(msg[4]))*np.cos(float(msg[2])*np.pi/180.0)*np.cos(flo...
示例1: lla2ecef ▲点赞 7▼ deflla2ecef(lla: Sequence[float], cst: ConstantsFile, lla_as_degrees: bool=False)-> Tuple[float, float, float]:""" converts LLA (Latitude, Longitude, Altitude) coordinates to ECEF (Earth-Centre, Earth-First) XYZ coordinates. ...
python 经纬度(LLA)转换成地心地固坐标系(ECEF)的坐标 python经纬度画图,前言因为根据地址库的经纬度坐标很难肉眼看出规律,所以想画个图看看。网上看了很多文章,大多都是基于标准地图的,但我只是想画个相对的坐标图就好。所以干脆就用matplotlib自己写一个吧。代码impor