step

System object: phased.LinearFMWaveform
Package: phased

Samples of linear FM pulse waveform

Syntax

Y = step(H)

Description

Y = step(H) returns samples of the linear FM pulse in a column vector Y.

    Note:   H 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, 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

Construct a linear FM waveform with a sweep bandwidth of 300 kHz, a sample rate of 1 MHz, a pulse width of 50 microseconds, and a pulse repetition frequency of 10 kHz.

hfmwav = phased.LinearFMWaveform('SweepBandwidth',3e5,...
    'OutputFormat','Pulses','SampleRate',1e6,...
    'PulseWidth',50e-6,'PRF',1e4);
% use step method to obtain the linear FM waveform
wav = step(hfmwav);
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