angle

Angle between sites

Description

example

[az,el] = angle(site1,site2) returns the azimuth and elevation angles between site 1 and site

example

[az,el] = angle(site1,site2,path) returns the angles using a specified path type, either Euclidean or geodesic.

[az,el] = angle(___,Name,Value) returns the azimuth and elevation angles with additional options specified by name-value pairs.

Examples

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Create transmitter and receiver sites.

tx = txsite('Name','MathWorks','Latitude',42.3001,'Longitude',-71.3504);
rx = rxsite('Name','Fenway Park','Latitude',42.3467,'Longitude',-71.0972);

Get the azimuth and elevation angles between the sites.

[az,el] = angle(tx,rx)
az = 14.0142
el = -0.2816

Get the azimuth angle between sites in degrees clockwise from north.

azFromEast = angle(tx,rx); % Unit: degrees counter-clockwise from east
azFromNorth = -azFromEast + 90 % Convert angle to clockwise from north
azFromNorth = 75.9858

Create transmitter and receiver sites.

tx = txsite('Name','MathWorks','Latitude',42.3001,'Longitude',-71.3504);
rx = rxsite('Name','Fenway Park','Latitude',42.3467,'Longitude',-71.0972);

Get the azimuth and elevation angles between the sites.

[az,el] = angle(tx,rx,'geodesic')
az = 14.0142
el = 0

Input Arguments

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Transmitter or receiver site, specified as a txsite or rxsite object. You can use array inputs to specify multiple sites.

Measurement path type, specified as one of the following:

  • 'euclidean': Uses the shortest path through space connecting the antenna center positions of the site 1 and site 2.

  • 'geodesic': Uses the shortest path on the surface of the earth connecting the latitude and longitude locations of site 1 and site 2. This path uses Earth ellipsoid model WGS-84.

Data Types: char

Name-Value Pair Arguments

Specify optional comma-separated pairs of Name,Value arguments. Name is the argument name and Value is the corresponding value. Name must appear inside quotes. You can specify several name and value pair arguments in any order as Name1,Value1,...,NameN,ValueN.

Example: 'Map','siteviewer1'

Map for surface data, specified as a siteviewer object or a terrain name. Valid terrain names are 'none', 'gmted2010', or the name of the custom terrain data added using addCustomTerrain. The default value is the current Site Viewer or 'gmted2010', if none is open.

Data Types: char | string

Output Arguments

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Azimuth angle between site 1 and site 2, returned as M-by-N arrays in degrees. M is the number of sites in sites 2 and N is the number of sites in sites 1. The values range from -180 to 180.

Elevation angle between site 1 and site 2, returned as M-by-N arrays in degrees. M is the number of sites in sites 2 and N is the number of sites in sites 1 The values range from -90 to 90.

When the path type specified is 'geodesic', elevation angle is always zero.

See Also

Introduced in R2017b