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Diffstat (limited to 'gr-utils/src/python/README.plot')
| -rw-r--r-- | gr-utils/src/python/README.plot | 95 |
1 files changed, 76 insertions, 19 deletions
diff --git a/gr-utils/src/python/README.plot b/gr-utils/src/python/README.plot index 0c4657ba9..60f14c669 100644 --- a/gr-utils/src/python/README.plot +++ b/gr-utils/src/python/README.plot @@ -1,40 +1,97 @@ -* gr_plot_*.py: -These are a collection of Python scripts to enable viewing and analysis of files produced by GNU Radio flow graphs. Most of them work off complex data produced by digital waveforms. +* gr_plot_*: +These are a collection of Python scripts to enable viewing and +analysis of files produced by GNU Radio flow graphs. Most of them work +off complex data produced by digital waveforms. -** gr_plot_float.py: -Takes a GNU Radio floating point binary file and displays the samples versus time. You can set the block size to specify how many points to read in at a time and the start position in the file. +** gr_plot_float: +Takes a GNU Radio floating point binary file and displays the samples +versus time. You can set the block size to specify how many points to +read in at a time and the start position in the file. -By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples. +By default, the system assumes a sample rate of 1, so in time, each +sample is plotted versus the sample number. To set a true time axis, +set the sample rate (-R or --sample-rate) to the sample rate used when +capturing the samples. -** gr_plot_iq.py: -Takes a GNU Radio complex binary file and displays the I&Q data versus time. You can set the block size to specify how many points to read in at a time and the start position in the file. +** gr_plot_iq: +Takes a GNU Radio complex binary file and displays the I&Q data versus +time. You can set the block size to specify how many points to read in +at a time and the start position in the file. -By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples. +By default, the system assumes a sample rate of 1, so in time, each +sample is plotted versus the sample number. To set a true time axis, +set the sample rate (-R or --sample-rate) to the sample rate used when +capturing the samples. -** gr_plot_const.py: -Takes a GNU Radio complex binary file and displays the I&Q data versus time and the constellation plot (I vs. Q). You can set the block size to specify how many points to read in at a time and the start position in the file. +** gr_plot_const: +Takes a GNU Radio complex binary file and displays the I&Q data versus +time and the constellation plot (I vs. Q). You can set the block size +to specify how many points to read in at a time and the start position +in the file. -By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples. +By default, the system assumes a sample rate of 1, so in time, each +sample is plotted versus the sample number. To set a true time axis, +set the sample rate (-R or --sample-rate) to the sample rate used when +capturing the samples. -** gr_plot_fft_c.py: -Takes a GNU Radio complex binary file and displays the I&Q data versus time as well as the frequency domain (FFT) plot. The y-axis values are plotted assuming volts as the amplitude of the I&Q streams and converted into dBm in the frequency domain (the 1/N power adjustment out of the FFT is performed internally). +** gr_plot_fft_c: +Takes a GNU Radio complex binary file and displays the I&Q data versus +time as well as the frequency domain (FFT) plot. The y-axis values are +plotted assuming volts as the amplitude of the I&Q streams and +converted into dBm in the frequency domain (the 1/N power adjustment +out of the FFT is performed internally). -The script plots a certain block of data at a time, specified on the command line as -B or --block. This value defaults to 1000. The start position in the file can be set by specifying -s or --start and defaults to 0 (the start of the file). +The script plots a certain block of data at a time, specified on the +command line as -B or --block. This value defaults to 1000. The start +position in the file can be set by specifying -s or --start and +defaults to 0 (the start of the file). -By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time and frequency axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples. +By default, the system assumes a sample rate of 1, so in time, each +sample is plotted versus the sample number. To set a true time and +frequency axis, set the sample rate (-R or --sample-rate) to the +sample rate used when capturing the samples. -** gr_plot_fft_f.py: -Takes a GNU Radio floating point binary file and displays the samples versus time as well as the frequency domain (FFT) plot. The y-axis values are plotted assuming volts as the amplitude of the I&Q streams and converted into dBm in the frequency domain (the 1/N power adjustment out of the FFT is performed internally). +** gr_plot_fft_f: +Takes a GNU Radio floating point binary file and displays the samples +versus time as well as the frequency domain (FFT) plot. The y-axis +values are plotted assuming volts as the amplitude of the I&Q streams +and converted into dBm in the frequency domain (the 1/N power +adjustment out of the FFT is performed internally). -The script plots a certain block of data at a time, specified on the command line as -B or --block. This value defaults to 1000. The start position in the file can be set by specifying -s or --start and defaults to 0 (the start of the file). +The script plots a certain block of data at a time, specified on the +command line as -B or --block. This value defaults to 1000. The start +position in the file can be set by specifying -s or --start and +defaults to 0 (the start of the file). -By default, the system assumes a sample rate of 1, so in time, each sample is plotted versus the sample number. To set a true time and frequency axis, set the sample rate (-R or --sample-rate) to the sample rate used when capturing the samples. +By default, the system assumes a sample rate of 1, so in time, each +sample is plotted versus the sample number. To set a true time and +frequency axis, set the sample rate (-R or --sample-rate) to the +sample rate used when capturing the samples. + + +** gr_plot_fft: +Takes a GNU Radio binary file (the datatype is specified using the -d +option and defaults to complex64) and displays the samples versus time +as well as the frequency domain (FFT) plot. The y-axis values are +plotted assuming volts as the amplitude of the I&Q streams and +converted into dBm in the frequency domain (the 1/N power adjustment +out of the FFT is performed internally). + +The script plots a certain block of data at a time, specified on the +command line as -B or --block. This value defaults to 1000. The start +position in the file can be set by specifying -s or --start and +defaults to 0 (the start of the file). + +By default, the system assumes a sample rate of 1, so in time, each +sample is plotted versus the sample number. To set a true time and +frequency axis, set the sample rate (-R or --sample-rate) to the +sample rate used when capturing the samples. |