bpsk?? - Electronic Circuits Projects Diagrams Free

jovabiot · 2nd March 2004, 09:46 AM

How can i do the receptor modul for a bpsk? how i obtain the modulator signal? thanks.

**kinjalgp** · 2nd March 2004, 11:19 AM

Check these sites:
http://www.computerpro.com/~lyle/watsbpsk.htm
http://www.amsat.org/amsat/articles/kd2bd/Pacsat_Modem/

Hope it helps.
Be more specific if this is not what you are looking for.

jovabiot · 2nd March 2004, 11:38 AM

my real problem is not obtain a signal with the frequency of modulator, i can obtain it with a remodulator circuit or with a square circuit and a pll. My problem is that i can syncronyze this signal with my phase modulated signal and then i can re-obtain the binary sequence. How can i syncronize this two signal that have the same frequency??? Thanks

**kinjalgp** · 2nd March 2004, 03:23 PM

So you are not able to synchronize between Tx and Rx. For that you can use Manchester coding which can very well synchronize both Tx and Rx or you can design your own protocol which has some header bytes to indicate start of data seqeunce and footer bytes to indicate end of sequence.

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2nd March 2004, 09:46 AM	(permalink)
jovabiot	bpsk?? How can i do the receptor modul for a bpsk? how i obtain the modulator signal? thanks.

2nd March 2004, 11:19 AM	(permalink)
kinjalgp	Check these sites: http://www.computerpro.com/~lyle/watsbpsk.htm http://www.amsat.org/amsat/articles/kd2bd/Pacsat_Modem/ Hope it helps. Be more specific if this is not what you are looking for. __________________ "There is no way to peace, peace is the way!"

2nd March 2004, 11:38 AM	(permalink)
jovabiot	ok, my real problem my real problem is not obtain a signal with the frequency of modulator, i can obtain it with a remodulator circuit or with a square circuit and a pll. My problem is that i can syncronyze this signal with my phase modulated signal and then i can re-obtain the binary sequence. How can i syncronize this two signal that have the same frequency??? Thanks

2nd March 2004, 03:23 PM	(permalink)
kinjalgp	So you are not able to synchronize between Tx and Rx. For that you can use Manchester coding which can very well synchronize both Tx and Rx or you can design your own protocol which has some header bytes to indicate start of data seqeunce and footer bytes to indicate end of sequence. __________________ "There is no way to peace, peace is the way!"