Signal Source

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Signal generator: generates a variety of waveforms.

Supports an output of type complex, float, int, and short

Parameters

(R): Run-time adjustable

Sample Rate (R)
default: samp_rate
Waveform (R)
options: [Constant, Sine, Cosine, Square, Triangle, Saw Tooth]
For selection with a variable, the following values should be used:
   constant = 100
   sine = 101
   cosine = 102
   square = 103
   triangle = 104
   sawtooth = 105
Frequency (R)
frequency of the waveform (default: 1000)
Amplitude (R)
amplitude of the output (default: 1)
Offset (R)
offset from zero (default: 0)
Initial Phase (Radians) (R)
default: 0

Messages

The 'freq' message port has been deprecated in 3.9 in favor of the 'cmd' message port.

The 'cmd' message port accepts message pairs.

  • 'freq' . float value
  • 'ampl' . float value
  • 'phase' . float value
  • 'offset' . float value

Example Flowgraph

This flowgraph is for version 3.9+.

Signal-source-ex.png

Example Output

Types of Waveforms:

Cosine (complex):

Signal-source-cosine.png

Constant:

Signal-source-constant.png

Square:

Signal-source-square.png

Triangle:

Signal-source-triangle.png

Sawtooth:

Signal-source-sawtooth.png

Source Files

C++ files
[1]
Header files
[2]
Public header files
Base
Waveforms
Block definition
[3]