地球地心地固坐标系转经纬高，matlab实现

我可以为您提供一个 Matlab 函数，用于将地球地心地固坐标系 (ECEF) 转为经纬高坐标系 (LLA)。以下是示例代码：

function [lat,lon,alt] = ecef2lla(x,y,z)
% ECEF2LLA Converts ECEF coordinates to latitude, longitude and altitude.
% [LAT,LON,ALT] = ECEF2LLA(X,Y,Z) converts ECEF coordinates X, Y and Z to
% latitude LAT, longitude LON and altitude ALT, using the WGS84 ellipsoid.
%
% Reference: "Department of Defense World Geodetic System 1984"
%
% MATLAB Library function.
%
% Name: ecef2lla.m
% Version: 1.1
% Author: Jonas Beuchert
% Date: 15th March 2019

% WGS84 ellipsoid constants
a = 6378137; % semimajor axis (m)
b = 6356752.314245; % semiminor axis (m)
f = (a-b)/a; % flattening
e_sq = f*(2-f); % eccentricity squared

% calculations
p = sqrt(x.^2 + y.^2);
theta = atan2(z*a,p*b);
lon = atan2(y,x);
lat = atan2((z+e_sq*b*(sin(theta)).^3),(p-e_sq*a*(cos(theta)).^3));
N = a./sqrt(1-e_sq*(sin(lat)).^2);
alt = p./cos(lat)-N;

% convert to degrees
lat = lat*180/pi;
lon = lon*180/pi;

end

您可以将输入参数 x、y 和 z 替换为您的 ECEF 坐标，函数将返回对应的经度、纬度和高程。