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Signal Chain
Introduction
Signal Chain (SCh) is a radar data processing library developed using Python at JRO. SCh provides modules to read, write, process and plot data.
Installation
Install system dependencies, clone the latest version from git and install it as a normal python package.
$ sudo apt-get install python-pip python-dev gfortran libpng-dev freetype* libblas-dev liblapack-dev libatlas-base-dev python-qt4 python-tk libssl-dev libhdf5-dev
$ sudo pip install numpy
$ git clone http://jro-dev.igp.gob.pe/rhodecode/schain/
$ cd schain
$ sudo pip install ./
Its recommended to install schain in a virtual environment
$ sudo pip install virtualenv $ virtualenv /path/to/virtual --system-site-packages $ source /path/to/virtual/bin/activate (virtual) $ cd schain (virtual) $ pip install ./
First Script
Read Spectra data (.pdata) - remove dc - plot spectra & RTI
Import SCh and creating a project
#!/usr/bin/python from schainpy.controller import Project controller = Project() controller.setup(id = '100', name='test', description='Basic experiment')
Adding read unit and operations
read_unit = controller.addReadUnit(datatype='Spectra', path='/path/to/pdata/', startDate='2014/01/31', endDate='2014/03/31', startTime='00:00:00', endTime='23:59:59', online=0, walk=0) proc_unit = controller.addProcUnit(datatype='Spectra', inputId=read_unit.getId()) op = proc_unit.addOperation(name='selectChannels') op.addParameter(name='channelList', value='0,1', format='intlist') op = proc_unit.addOperation(name='selectHeights') op.addParameter(name='minHei', value='80', format='float') op.addParameter(name='maxHei', value='200', format='float') op = proc_unit.addOperation(name='removeDC')
Plotting data & start project
op = proc_unit.addOperation(name='SpectraPlot', optype='other') op.addParameter(name='id', value='1', format='int') op.addParameter(name='wintitle', value='Spectra', format='str') op = procUnitConfObj1.addOperation(name='RTIPlot', optype='other') op.addParameter(name='id', value='2', format='int') op.addParameter(name='wintitle', value='RTI', format='str') controller.start()
Full script
#!/usr/bin/python from schainpy.controller import Project controller = Project() controller.setup(id = '100', name='test', description='Basic experiment') read_unit = controller.addReadUnit(datatype='Spectra', path='/path/to/pdata/', startDate='2014/01/31', endDate='2014/03/31', startTime='00:00:00', endTime='23:59:59', online=0, walk=0) proc_unit = controller.addProcUnit(datatype='Spectra', inputId=read_unit.getId()) op = proc_unit.addOperation(name='selectChannels') op.addParameter(name='channelList', value='0,1', format='intlist') op = proc_unit.addOperation(name='selectHeights') op.addParameter(name='minHei', value='80', format='float') op.addParameter(name='maxHei', value='200', format='float') op = proc_unit.addOperation(name='removeDC') op = proc_unit.addOperation(name='SpectraPlot', optype='other') op.addParameter(name='id', value='6', format='int') op.addParameter(name='wintitle', value='Spectra', format='str') op = procUnitConfObj1.addOperation(name='RTIPlot', optype='other') op.addParameter(name='id', value='2', format='int') op.addParameter(name='wintitle', value='RTI', format='str') controller.start()