QT GUI Frequency Sink: Difference between revisions
Jump to navigation
Jump to search
(update parameters; add Source File links) |
|||
| Line 1: | Line 1: | ||
A graphical sink to display multiple signals in frequency. | A graphical sink to display multiple signals in frequency. | ||
| Line 7: | Line 6: | ||
== Parameters == | == Parameters == | ||
<b>(''R''):</b> <span class="plainlinks">[https://wiki.gnuradio.org/index.php/GNURadioCompanion#Variable_Controls ''Run-time adjustable'']</span> | |||
; Type | ; Type | ||
| Line 16: | Line 16: | ||
; FFT Size | ; FFT Size | ||
: size of the FFT to compute and display. If using the PDU message port to plot samples, the length of each PDU must be a multiple of the FFT size. | : size of the FFT to compute and display. If using the PDU message port to plot samples, the length of each PDU must be a multiple of the FFT size. | ||
: options: [32,64,128,256,512,1024,2048,4096,8192,16384,32768] | |||
: default: 1024 | |||
; Spectrum Width | ; Spectrum Width | ||
| Line 27: | Line 29: | ||
: options: [Yes, No] | : options: [Yes, No] | ||
; Center Frequency (Hz) | ; Center Frequency (Hz) (''R'') | ||
: center frequency of signal (only used for x-axis labels) | : center frequency of signal (only used for x-axis labels) | ||
| Line 58: | Line 60: | ||
: default: 1 | : default: 1 | ||
; Update Period | ; Update Period (''R'') | ||
: default: 0.10 | : default: 0.10 | ||
| Line 68: | Line 70: | ||
== Messages == | == Messages == | ||
=== Inputs === | === Inputs === | ||
| Line 88: | Line 91: | ||
; C++ files | ; C++ files | ||
: [https://github.com/gnuradio/gnuradio | : [https://github.com/gnuradio/gnuradio/blob/main/gr-qtgui/lib/freq_sink_c_impl.cc for Complex input] | ||
: [https://github.com/gnuradio/gnuradio/blob/main/gr-qtgui/lib/freq_sink_f_impl.cc for Float input] | |||
; Header files | ; Header files | ||
: [https://github.com/gnuradio/gnuradio | : [https://github.com/gnuradio/gnuradio/blob/main/gr-qtgui/lib/freq_sink_c_impl.h for Complex input] | ||
: [https://github.com/gnuradio/gnuradio/blob/main/gr-qtgui/lib/freq_sink_f_impl.h for Float input] | |||
; Public header files | ; Public header files | ||
| Line 97: | Line 102: | ||
; Block definition | ; Block definition | ||
: [https://github.com/gnuradio/gnuradio | : [https://github.com/gnuradio/gnuradio/blob/main/gr-qtgui/grc/qtgui_freq_sink_x.block.yml gr-qtgui/grc/qtgui_freq_sink_x.block.yml] | ||
[[Category:Block Docs]] | |||
Latest revision as of 19:49, 9 April 2023
A graphical sink to display multiple signals in frequency.
This is a QT-based graphical sink that takes a set of floating point streams and plots the PSD. Each signal is plotted with a different color, and functions can be used to change the label and color for a given input number.
The sink supports plotting streaming float data or messages. The message port is named "in". The two modes cannot be used simultaneously, and should be set to 0 when using the message mode. GRC handles this issue by providing the "Float Message" type that removes the streaming port(s).
Parameters
(R): Run-time adjustable
- Type
- options: [Complex, Float, Complex Message, Float Message]
- Name
- title for the plot
- FFT Size
- size of the FFT to compute and display. If using the PDU message port to plot samples, the length of each PDU must be a multiple of the FFT size.
- options: [32,64,128,256,512,1024,2048,4096,8192,16384,32768]
- default: 1024
- Spectrum Width
- options (if Float input): [Full, Half]
- Window Type
- options: [Blackman-harris, Hamming, Hann, Blackman, Rectangular, Kaiser, Flat-top]
- default: window.WIN_BLACKMAN_hARRIS
- Normalize Window Power
- options: [Yes, No]
- Center Frequency (Hz) (R)
- center frequency of signal (only used for x-axis labels)
- Bandwidth (Hz)
- bandwidth of signal (used to set x-axis labels)
- default: samp_rate
- Grid
- options: [Yes, No]
- Autoscale
- options: [Yes, No]
- Average
- options: [None, Low, Medium, High]
- Y min
- default: -140
- Y max
- default: 10
- Y label
- default: "Relative Gain"
- Y units
- default: "dB"
- Number of Inputs
- default: 1
- Update Period (R)
- default: 0.10
- Show Msg Ports
- options: [Yes, No]
- GUI Hint
- See GUI Hint
Messages
Inputs
- 'freq'
- set the center frequency
- 'bw'
- set the bandwidth
Outputs
- 'freq'
- the frequency where the output plot was double-clicked
Example Flowgraph
Source Files
- C++ files
- for Complex input
- for Float input
- Header files
- for Complex input
- for Float input
- Public header files
- TODO
- Block definition
- gr-qtgui/grc/qtgui_freq_sink_x.block.yml