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enu2aer

PURPOSE ^

enu2aer convert ENU to azimuth, elevation, slant range

SYNOPSIS ^

function [az, elev, slantRange] = enu2aer(e, n, u, angleUnit)

DESCRIPTION ^

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

CROSS-REFERENCE INFORMATION ^

This function calls: This function is called by:

SOURCE CODE ^

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.

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