How to convert binary wave to analog sine wave in simulink matlab r2016b?

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kshama PATEL
kshama PATEL 2017-3-17
编辑： Walter Roberson 2017-4-3
I want to convert a digital/binary signal received at "Rectangular 16QAM demodulator" block into an analog sine wave signal in the simulink, matlab.
Please help.

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Walter Roberson
Walter Roberson 2017-3-17
You need a hardware output block of some kind. The appropriate blocks to use are going to depend upon the digital to analog hardware that you have available.
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Walter Roberson
Walter Roberson 2017-3-17
I think you are falling into the same error as I discussed in https://www.mathworks.com/matlabcentral/answers/321197-how-do-i-write-matlab-code-for-a-1-bit-dac#comment_430543
Analog means a real physical signal of some sort. It could be vibrating air carrying sound waves; it could be an electric current; it could be an electromagnetic wave; it could be a laser being beamed through a fibre optic cable; and so on. If it is not being acted upon by physical processes, then it is not an analog signal.
Therefore if you want to convert to analog, as you have indicated that you do, then you need to pick an actual output device.
My guess is that you do not want to convert to analog: I think you want to simulate analog. If I am correct, then you need to decide what kind of analog processes you want to simulate.
kshama PATEL
kshama PATEL 2017-3-18
编辑：Walter Roberson 2017-4-3
yes, i want to simulate analog.
Basic idea is to make a "sinusoidal signal" at the input of the transmitter section of "RF Satellite Link model" compatible with the "rectangular 16-QAM modulator" block and obtain the results in the form of constellation diagram.
Please click the link to have a look at the model https://in.mathworks.com/help/comm/examples/rf-satellite-link.html. or find its picture an an attachment to this message.
I want to replace "bernoulli binary generator" block with a "sine wave" block and then simulate the same.
I tried doing the simulation but i am getting only 8 constellation points out of 16. you can find the picture of modified sinewave model and the corresponding simulated result as an attachment to this message.
Please help me to obtain all the 16 constellation points in the constellation diagram with the input as sine wave at the transmitter section of the "RF Satellite Link" model.
Thank you.

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