# Documentation

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# aer2ned

Local spherical AER to local Cartesian NED

## Syntax

• ``````[xNorth,yEast,zDown] = aer2ned(az,elev,slantRange)``````
• ``[___] = aer2ned(___,angleUnit)``

## Description

``````[xNorth,yEast,zDown] = aer2ned(az,elev,slantRange)``` returns coordinates in a local north—east—down (NED) Cartesian system corresponding to coordinates `az`, `elev`, `slantRange` in a local spherical system having the same origin. Any of the three numerical input arguments can be scalar, even when the others are nonscalar; but all nonscalar numeric arguments must match in size.```
````[___] = aer2ned(___,angleUnit)` adds `angleUnit` which specifies the units of inputs `az` and `elev`..```

## Input Arguments

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Azimuth angles in the local spherical system, specified as a scalar, vector, matrix, or N-D array. Azimuths are measured clockwise from north. Values must be in units that match the input argument `angleUnit`, if supplied, and in degrees, otherwise.

Data Types: `single` | `double`

Elevation angles in the local spherical system, specified as a scalar, vector, matrix, or N-D array. Elevations are with respect to a plane perpendicular to the spheroid surface normal. Values must be in units that match the input argument `angleUnit`, if supplied, and in degrees, otherwise.

Data Types: `single` | `double`

Distances from origin in the local spherical system, returned as a scalar, vector, matrix, or N-D array. The straight-line, 3-D Cartesian distance is used. Units are determined by the `LengthUnit` property of the `spheroid` input.

Data Types: `single` | `double`

Units of angles, specified as ‘degrees' (default), or 'radians'.

Data Types: `char`

## Output Arguments

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x-coordinates of one or more points in the local NED system, returned as a scalar value, vector, matrix, or N-D array.

y-coordinates of one or more points in the local NED system, returned as a scalar value, vector, matrix, or N-D array.

z-coordinates of one or more points in the local NED system, returned as a scalar value, vector, matrix, or N-D array.