|
From: | Glen I Langston |
Subject: | [Discuss-gnuradio] Trouble decimating after averaging 4 vectors? Help? |
Date: | Sun, 11 Mar 2018 14:06:50 -0400 |
Hello Gnuradio experts, I'm following the gnuradio tutorial for creating an out of tree python block. My intention is fairly simple. To have a input stream of 4 vectors and average these 4 vectors, outputting a single average vector after the 4th vector arrives. Right now my vectors are 1024 channel total power spectra. My code is attached, along with the quality control code. I've been at this for a while, but I must have the wrong model in my head on how gnuradio holds these samples. I'm not getting the proper size matches. I can not find any decimation help, despite hours of googling... Suggestions? THanks Glen |
qa_vdecimate.py
Description: Text Data
vdecimate.py
Description: Text Data
My intention is to make this 4 vector average with decimate a part of the .grc environment, but the problems are easier to diagnose, as the QA code is stands alone. Here are the messages I’m getting: ESMU:vdecimate glangsto$ python qa_vdecimate.py handler caught exception: could not broadcast input array from shape (4,1024) into shape (1,1024) Traceback (most recent call last): File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/gnuradio/gr/gateway.py", line 55, in eval try: self._callback() File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/gnuradio/gr/gateway.py", line 160, in __gr_block_handle ) for i in self.__out_indexes], File "/Users/glangsto/Desktop/Research/vdecimate/vdecimate.py", line 58, in work out[:] = self.sum/float(self.count) ValueError: could not broadcast input array from shape (4,1024) into shape (1,1024) thread[thread-per-block[1]: <block vdecimate (2)>]: SWIG director method error. Error detected when calling 'feval_ll.eval' |
[Prev in Thread] | Current Thread | [Next in Thread] |