step
System object: comm.LTEMIMOChannel
Package: comm
(Removed) Filter input signal through LTE MIMO multipath fading channel
comm.LTEMIMOChannel
has been removed in a future release. Use comm.MIMOChannel
instead.
Syntax
Y = step(H,X)
[Y,PATHGAINS] = step(H,X)
Description
Note
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.
Y = step(H,X)
filters input signal X
through
an LTE MIMO multipath fading channel and returns the result in Y
.
The input X
can be a double- or single-precision data type scalar,
vector, or 2-D matrix with real or complex values. X
is of size
Ns-by-Nt.
Ns represents the number of samples and
Nt represents the number of transmit
antennas that must match the AntennaConfiguration
property setting of H
. Y
is the output signal
of size
Ns-by-Nr.
Nr represents the number of receive
antennas that is specified by the AntennaConfiguration
property of H
. Y
contains complex values with
same precision as input signal.
[Y,PATHGAINS] = step(H,X)
returns the LTE MIMO channel path gains
of the underlying fading process in PATHGAINS. This applies when you set the PathGainsOutputPort
property to true
. PATHGAINS is of size
Ns-by-Np-by-Nt-by-Nr.
Np represents the number of discrete paths
of the channel implicitly defined by the Profile property of
H
. PATHGAINS contains complex values with same precision as
input signal.
Note
obj
specifies the System object on which to run this step
method.
The object performs an initialization the first time the step
method is executed. This initialization locks nontunable properties and
input specifications. For more information on changing property values, see System Design in MATLAB Using System Objects.