receiving MSK signal - special scenario

[BMWE]

Hello,

I want to simulate the following situation:
I transmit data in 2K, encode it with turbo code (1/2).
Then I expand the data in the following way: each coded bit is repeated some number of times. Let say I have A=[1 0 0 1 0] and the repeat factor is 4, then I'd receive B=[1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0].
This B sequence I modulate using MSK.
So the R_in=2K, R_coded=4K, R_MSK

Now in the receiver side, I want that out of the MSK receiver will have rate of R_MSKreceiver=4K (i.e it will execute also the shrink of the data rate). I can't execute the shrink separately.
Then I have turbo decoder and the output of the bits.

Can somebody please assist me with the MSK receiver?

 

[bangbi]

hello! as you know, shaping of MSK is

To demodulation MSK you must separate ai and aq components.
you can devide signal into 2 s(t).


then using a filter to remove high frequence, you 'll receive ai*cos(pi*t/2T) and aq*sin(pi*t/2T).
i don't write english well, but i hope you can understand i write
have fun

 

[BMWE]

Hi

It is still didn't response to my question