Addition of signals in simulink

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Abbey Stock
Abbey Stock on 10 Dec 2020
Answered: Kranti Balaga on 24 May 2021
I have two signals I would like to add together using simulink (Inphase and Quadrature). These would have to be added using a signal from t = 0- 1 from inphase, then t = 0-1 quadrature, then t = 1-2 inphase, t = 1-2 quadrature etc..
How would i do this without using the QPSK demodulator block? I already have the inphase and quadrature signals in two differrent 'streams'
Abbey Stock
Abbey Stock on 15 Dec 2020
Hi, thanks for your answer. However this does not merge the signals in the way i need. Is there a way to add them as in one inphase timestep, one quadrature timestep, one inphase timestep, one quadrature...

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Answers (1)

Kranti Balaga
Kranti Balaga on 24 May 2021
To demodulate the I and Q signals without using QPSK demodulator block can be done for the hard decision. You can get I and Q signals in two different streams and give it to the hard decision using the following block by setting a constant value to 'zero'
You will get bit outputs.
For combining real I and real Q to complex data, you can use

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