matlab读取nema0183语句中经纬度并求经纬度平均值与差值的程序

以下是一个示例程序，可以读取NEMA0183语句中的经纬度数据并计算出平均值和差值：

% 读取NEMA0183语句中的经度和纬度数据
nmea_str = '$GPRMC,120304.858,A,3017.4256,N,12128.0319,E,0.0,0.0,100821,,,A*6E';
nmea_parts = split(nmea_str, ',');
lat_str = nmea_parts{4};
lon_str = nmea_parts{6};

% 将经纬度字符串转换为数值型
lat_degrees = str2double(lat_str(1:2));
lat_minutes = str2double(lat_str(3:end));
lat = lat_degrees + lat_minutes / 60;
if nmea_parts{5} == 'S'
    lat = -lat;
end
lon_degrees = str2double(lon_str(1:3));
lon_minutes = str2double(lon_str(4:end));
lon = lon_degrees + lon_minutes / 60;
if nmea_parts{7} == 'W'
    lon = -lon;
end

% 计算平均值和差值
lat_mean = mean([lat1, lat2]);
lon_mean = mean([lon1, lon2]);
lat_diff = abs(lat1 - lat2);
lon_diff = abs(lon1 - lon2);

请注意，这只是一个示例程序，需要根据实际的数据格式和