step
System object: phased.BarrageJammer
Package: phased
Generate noise jamming signal
Syntax
Y = step(H)
Y = step(H,N)
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) returns a column vector, Y,
that is a complex white Gaussian noise jamming signal. The power of
the jamming signal is specified by the ERP property.
The length of the jamming signal is specified by the SamplesPerFrame property.
This syntax is available when the SamplesPerFrameSource property
is 'Property'.
Y = step(H,N) returns the jamming signal
with length N. This syntax is available when
the SamplesPerFrameSource property is 'Input
port'.
Note
The object performs an initialization the first time the object is executed. This
initialization locks nontunable properties
and input specifications, such as dimensions, complexity, and data type of the input data.
If you change a nontunable property or an input specification, the System object issues an error. To change nontunable properties or inputs, you must first
call the release method to unlock the object.
Examples
Plot Barrage Jammer Output
Create a barrage jammer with an effective radiated power of 1000W. Then plot the magnitude of the jammer output. Your plot might vary because of random numbers.
Hjammer = phased.BarrageJammer('ERP',1000); x = step(Hjammer); plot(abs(x)); xlabel('Samples'); ylabel('Magnitude');
