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Vertical coverage diagram

`[`

calculates the vertical coverage pattern of a narrowband radar antenna. The
Vertical Coverage Pattern is the range of
the radar `vcp`

,`vcpangles`

] = radarvcd(`freq`

,`rfs`

,`anht`

)`vcp`

as a function of elevation angle
`vcpangles`

. The vertical coverage pattern depends on
three parameters: maximum free-space detection range of the radar
`rfs`

, the radar frequency `freq`

, and
the antenna height `anht`

.

`radarvcd(___)`

displays the vertical coverage
diagram for a radar system. The plot is the locus of points of maximum radar
range as a function of target elevation. This plot is also known as the
*Blake chart*. To create this chart,
`radarvcd`

invokes the function `blakechart`

using default
parameters. To produce a Blake chart with different parameters, first call
`radarvcd`

to obtain `vcp`

and
`vcpangles`

. Then, call `blakechart`

with user-specified parameters. This syntax can use any of the previous
syntaxes.

[1] Blake, Lamont V. *Machine Plotting of Radar
Vertical-Plane Coverage Diagrams*. Naval Research Laboratory Report 7098,
1970.

[2] Barton, David K.
*Radar Equations for Modern Radar*. Norwood, MA: Artech House,
2013.