enu2aer convert ENU to azimuth, elevation, slant range Inputs ------ e,n,u: East, North, Up coordinates of test points (meters) angleUnit: string for angular units. Default 'd': degrees outputs ------- az, el, slantrange: look angles and distance to point under test (degrees, degrees, meters) az: azimuth clockwise from local north el: elevation angle above local horizon
0001 function [az, elev, slantRange] = enu2aer(e, n, u, angleUnit) 0002 %enu2aer convert ENU to azimuth, elevation, slant range 0003 % 0004 % Inputs 0005 % ------ 0006 % e,n,u: East, North, Up coordinates of test points (meters) 0007 % angleUnit: string for angular units. Default 'd': degrees 0008 % 0009 % outputs 0010 % ------- 0011 % az, el, slantrange: look angles and distance to point under test (degrees, degrees, meters) 0012 % az: azimuth clockwise from local north 0013 % el: elevation angle above local horizon 0014 0015 r = hypot(e, n); 0016 slantRange = hypot(r,u); 0017 % radians 0018 elev = atan2(u,r); 0019 az = mod(atan2(e, n), 2 * atan2(0,-1)); 0020 0021 if nargin < 4 || isempty(angleUnit) || strcmpi(angleUnit(1),'d') 0022 elev = rad2deg(elev); 0023 az = rad2deg(az); 0024 end 0025 0026 end 0027 0028 % Copyright (c) 2014-2018 Michael Hirsch, Ph.D. 0029 % Copyright (c) 2013, Felipe Geremia Nievinski 0030 % 0031 % Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 0032 % 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 0033 % 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 0034 % THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.