Re: [Discuss-gnuradio] demo of a live fft plot running remotely through a ssh terminal

[Josh Blum]

> That's really cool. I could use something like that for a machine
> with a USRP2 that I sometimes control remotely. How did you get the
> FFT to display in ASCII text via an SSH terminal? Was it a
> modification of "usrp2_fft.py"? Or is it something you wrote custom
> for yourself?

I made a little c++ header with 2 functions:
 - a log-power-dft (in case you dont want to link fftw)
 - a function to turn dft bins into a printable string

http://pastebin.com/R6dS9xUj

There is an example in uhd that uses this to make a live dft plotter. 
The app also uses a little bit of curses for clearing the screen and 
getting the terminal dimensions.

See host/examples/rx_ascii_art_dft.cpp

-Josh