Hello,
I recently have a problem to transmit the MIMO signal and I need some helps you
guys.
What I am trying to do was to send the preamble from each transmitter daughter
board first and send the actual data. The problem is that when I try to use as
below. It did not work:
...... ...... ......
self._setup_usrp_sink()
self.connect(intl,self.u)
def _setup_usrp_sink(self):
...... ...... ......
self.connect(self.preamble1,
self.chunks2symbols13,self.rrc_filter3,(intl,0))
-----------------------------(1) self.connect(self.preamble2,
self.chunks2symbols14,self.rrc_filter4,(intl,1))
-----------------------------(2) self.connect(self.ala1,
self.chunks2symbols11,self.rrc_filter1,(intl,0))
-----------------------------(3) self.connect(self.ala2,
self.chunks2symbols12,self.rrc_filter2,(intl,1))
-----------------------------(4)
I know that I am not supposed to use the multi-self.connect. However,
self.preamble1,2 and self.ala1,2 are the finite data and as soon as the (1) and
(2) was done, the (3) and (4) are supposed to work. Unfortunately, it was not.
Could you give me what the problem is and also, could you give me any advice
how to transmit the different datas with different constellation with using
self.connect?
Thanks,
Joon Kim
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