System object: phased.ConstantGammaClutter
Package: phased
Simulate clutter using constant gamma model
Y = step(H)
Y = step(H,X)
Y = step(H,STEERANGLE)
Y = step(H,X,STEERANGLE)
Y = step(H,X,WS)
Starting in R2016b, instead of using the step
method
to perform the operation defined by the System
object™, you can
call the object with arguments, as if it were a function. For example, y
= step(obj,x)
and y = obj(x)
perform
equivalent operations.
computes
the collected clutter return at each sensor. This syntax is available
when you set the Y
= step(H
)TransmitSignalInputPort
property
to false
.
specifies
the transmit signal in Y
= step(H
,X
)X
. Transmit
signal refers to the output of the transmitter while it
is on during a given pulse. This syntax is available when you set
the TransmitSignalInputPort
property to true
.
uses Y
= step(H
,STEERANGLE
)STEERANGLE
as
the subarray steering angle. This syntax is available when you configure H
so
that H.Sensor
is an array that contains subarrays
and H.Sensor.SubarraySteering
is either 'Phase'
or 'Time'
.
combines
all input arguments. This syntax is available when you configure Y
= step(H
,X
,STEERANGLE
)H
so
that H.TransmitSignalInputPort
is true
, H.Sensor
is
an array that contains subarrays, and H.Sensor.SubarraySteering
is
either 'Phase'
or 'Time'
.
uses Y
= step(H
,X
,WS
)WS
as weights applied to each element within each subarray. To
use this syntax, set the Sensor
property to an array that supports
subarrays and set the SubarraySteering
property of the array to
'Custom'
.

Constant gamma clutter object.  

Transmit signal, specified as a column vector.  

Subarray steering angle in degrees. If If  

Subarray element weights Subarray element weights, specified as complexvalued N_{SE}byN matrix or 1byN cell array where N is the number of subarrays. These weights are applied to the individual elements within a subarray. Subarray element weights
Dependencies To enable this argument, set the Example: 

Collected clutter return at each sensor. 
The clutter simulation that ConstantGammaClutter
provides
is based on these assumptions:
The radar system is monostatic.
The propagation is in free space.
The terrain is homogeneous.
The clutter patch is stationary during the coherence time. Coherence time indicates how frequently the software changes the set of random numbers in the clutter simulation.
The signal is narrowband. Thus, the spatial response can be approximated by a phase shift. Similarly, the Doppler shift can be approximated by a phase shift.
The radar system maintains a constant height during simulation.
The radar system maintains a constant speed during simulation.