Hello Guys I'm creating a customized block in the GNU Radio framework using python that takes in a number of input items and once that number of input items surpasses a certain number, 1024 of the input items are taken and stored into an array, and then those items are converted to dB and lastly compared to a threshold value, 5 in this case. If any of the values are greater than the threshold value, a message is printed indicating a signal is present, and if none of the values are greater than 5, this is indicated with a message stating "No signal is present".
When I run the flow graph which uses this block I get the following error.
handler caught exception: a float is required
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/gnuradio/gr/gateway.py",
line 55, in eval
try: self._callback()
File "/usr/local/lib/python2.7/dist-packages/gnuradio/gr/gateway.py",
line 144, in __gr_block_handle
) for i in self.__out_indexes],
File "/home/tellrell/Ener_detec.py", line 42, in general_work
c = math.log10(in1) #converts 1024 values stored in in1 to dB
and stores them in c
TypeError: a float is required
thread[thread-per-block[8]: <block ED_block (22)>]: caught unrecognized
exception
The .py script for the customized block along with the corresponding .grc
file are attached below.
Any help would be great.
Tellrell
Ener_detec.py
Description: Binary data
ener_dtec.grc
Description: Binary data
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