README.md
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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 here and install it as a normal python package.
Linux based system
$ 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
$ git clone http://jro-dev.igp.gob.pe/rhodecode/schain/
$ cd schain
$ sudo pip install ./
MAC Os
$ brew install python
$ brew install cartr/qt4/pyqt
$ git clone http://jro-dev.igp.gob.pe/rhodecode/schain/
$ cd schain
$ pip install ./
It is recommended to install schain in a virtual environment
$ virtualenv /path/to/virtual $ source /path/to/virtual/bin/activate (virtual) $ cd schain (virtual) $ pip install ./ (virtual) $ bash link_PyQt4.sh
Docker
Download Dockerfile from the repository, and create a docker image
$ docker build -t schain .
You can run a container using an xml file or a schain script also you need to mount a volume for the data input and for the output files/plots
$ docker run -it --rm --volume /path/to/host/data:/data schain xml /data/test.xml
$ docker run -it --rm --volume /path/to/host/data:/data --entrypoint=/bin/python schain /data/test.py
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()