Greetings,
I would like to ask you how to read the data stored in a vector sink. I tried the solutions I found in the discussion list. You can see some part of my python code below.
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##################################################
# Connections
##################################################
self.connect((self.my_vec_src, 0), (self.my_thro, 0)) vector_source -> throttle
self.connect((self.my_thro, 0), (self.my_h, 0)) throttle -> head
self.connect((self.my_h, 0), (self.my_vec_snk, 0)) head -> vector_sink
time.sleep(10)
my_data=self.my_vec_snk.data()
print "data: ",my_data
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if __name__ == '__main__':
parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
(options, args) = parser.parse_args()
tb = top_block()
tb.Run(True)
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Output of the program :
data: ()
I need to read an incoming data to correlate with some predefined data, vector. If I am not wrong the best solution is to save data in a vector sink same length as the predefined vector, then applying the cross-correlation to them. The program above is just a test program to examine what the vector sink
stores, but I am confused why it does not work, because I saw a similar working use of a vector sink with USRPs. I already save the data in a file, but it does not seem to me as a good solution at least due to possible memory waste, though clearing the file is
possible in run-time.
Thanks in advance,
Abdullah