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CIR scripts
===========
This is a set of script to do correlation measurement measurements
of a DAB signal. The goal is to one day do a channel impulse
response measurement.
Right now there are three scripts:
* simulate_channel.py: Reads an I/Q file generated by ODR-DabMod and
adds some additional components, somehow equivalent to signal reflexions.
Each reflexion has a delay and an amplitude factor.
* correlate_with_ref.py: Finds the NULL symbol of an IQ file, and runs
correlations against the known phase reference to find the components
Example image: 
The example image shows the correlation (horizontal: time delay, vertical:
time offset of the different pieces) between a simulated channel
and the phase reference.
The peaks at delay indices 0, 14 and 25 are clearly visible.
Next steps
----------
Read in a recording using a RTL-SDR receiver.
Requirements
------------
Python with NumPy and matplotlib
The iq files must be complex float or interleaved unsigned 8-bit.
Licence
-------
MIT. See LICENCE for details.
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