Hello GNURadio Community,
I have used the firdes.low_pass_2(...) function in many of
my Gnuradio blocks in the past to pass filter coefficients to
my blocks and it has always worked.
Yesterday I opened one of my GRC that uses his filter
function and it showed an error. The specific usage was:
firdes.low_pass_2(1,samp_rate1,
fcut,
ftrans,attenuation_dB=100,
window=filter.firdes.WIN_BLACKMAN_HARRIS)
Error
message: There is no attribute WIN_BLACKMAN_HARRIS
I then opened several previously created GRCs blocks with
this function and all showed the same error. I then opened
some radio blocks which required a user to set the window and noticed that what used to
be set as WIN_BLACKMAN was now Blackman.
I searched the Gnuradio literature, but could not find
anything to help me. I made the changes below to the function,
but all failed: window=filter.firdes.Win_blackman_harris,
window=Blackman_harris then, I would leave out the word
window, also in calling the function, I tried low_pass_2
instead of firdes.low_pass_2.
I would appreciate getting some suggestions from
someone who has worked recently with this filter function.
Thank you!
Regards,
George