User`s guide

Chirp
5-70
specgram(dsp_examples_yout,[0:.01:40],400,hamming(128),110)
Example 2: Bidirectional Sweeps.
Change the Sweep mode parameter in the
Example 1 model to
Bidirectional, and leave all other parameters the same to
view the following bidirectional chirp. Note that in the bidirectional sweep, the
period of the sweep is twice the
Sweep time (2 seconds), whereas it was one
Sweep time (1 second) for the unidirectional sweep in Example 1.
Chirp Block Parameters for Example 1
Frequency sweep Linear
Sweep mode Unidirectional
Initial frequency
0
Target frequency 25
Target time 1
Sweep time 1
Initial phase 0
Sample time 1/400
Samples per frame 400
Vector Scope Block Parameters for Example 1
Input domain Time
Time display span
6
Signal To Workspace Block Parameters for Example 1
Variable name
dsp_examples_yout
Simulation Parameters Dialog Parameters for Example 1
Stop time 5