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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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### az — Azimuth angles scalar value | vector | matrix | N-D array

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

### elev — Elevation angles scalar value | vector | matrix | N-D array

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

### slantRange — Distances from local originscalar value | vector | matrix | N-D array

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

### angleUnit — Units of angles'degrees' (default) | 'radians'

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

Data Types: char

## Output Arguments

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### xNorth — Local NED x-coordinatesscalar value | vector | matrix | N-D array

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

### yEast — Local NED y-coordinatesscalar value | vector | matrix | 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.

### zDown — Local NED z-coordinatesscalar value | vector | matrix | 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.