Difference between revisions of "Signal Source"

From GNU Radio
Jump to navigation Jump to search
(add Messages section)
Line 1: Line 1:
[[Category:Block Docs]]
[[Category:Block Docs]]
Signal generator, generates a variety of signals.
Signal generator: generates a variety of waveforms.


Supports an output of type complex, float, int, and short
Supports an output of type complex, float, int, and short
Line 31: Line 31:
; Initial Phase (Radians) (''R'')
; Initial Phase (Radians) (''R'')
: default: 0
: default: 0
== Messages ==
The 'freq' message port has been <code>deprecated in 3.9</code> 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 ==
== Example Flowgraph ==


[[File:Signal-source-ex.png]]
[[File:Signal-source-ex.png]]
<hr>


Types of Waveforms:
Types of Waveforms:
Line 57: Line 69:


[[File:Signal-source-sawtooth.png|600px]]
[[File:Signal-source-sawtooth.png|600px]]
== Source Files ==
; C++ files
: [https://github.com/gnuradio/gnuradio TODO]
; Header files
: [https://github.com/gnuradio/gnuradio TODO]
; Public header files
: [https://github.com/gnuradio/gnuradio TODO]
; Block definition
: [https://github.com/gnuradio/gnuradio TODO]

Revision as of 20:07, 2 February 2021

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

Signal-source-ex.png


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
TODO
Header files
TODO
Public header files
TODO
Block definition
TODO