[Discuss-gnuradio] state of offline signal analysis tools in 2014?

[Peter A. Bigot]

GNU Radio is a great tool for applications and dynamic experimentation, 
but it doesn't have a lot of support for static/offline analysis of 
time-series data.  I.e. I've captured some signal data and I want to 
explore its properties interactively so I can figure out what I want to 
do with it in GNU Radio.

The sort of capabilities I'm looking for include: Read time-series data 
from files of different formats (some too large to fit in physical 
memory).  Display the data, optionally applying linear transformations. 
Interactively pan and zoom.  Jump forwards and backwards among 
time-registered events.  Enable/disable/time-shift data overlays. Export 
selected data to new files.  Calculate and display statistics and other 
non-linear transformations of selected data.

Ideally I'd like an open-source analysis framework that I can extend in 
Python or C++; something like the Midas DSP tool family.  I'm aware of 
some Qt widgets like QtCustomPlot, and generic frameworks like 
matplotlib and octave, but not of any ready-to-use applications or 
frameworks that already provide the basic functionality described 
above.  The keywords I've tossed at Google haven't produced any obvious 
solutions, and discussions I find in the archives here are a couple 
years old and seem to summarize as "use maplotlib/octave".

Is any such framework available now or in development?  If not, is 
anybody interested in joining me offline to discuss the requirements and 
design for such a thing?

Thanks.

Peter