Carrier synchronization

[symsnowfairy]

About homodyne reception,there is problem with synchronization of RF and LO signal.How can I make this synchronization.Or maybe phase offsets can be compensated in a signal processor,but still I do not know how to make it.

 

[fanshuo]

if the signal is not a DSSS signal then Costas loop will do the job

 

[symsnowfairy]

My case is QAM.

 

[flatulent]

There are costas loops for quadrature signals.

 

[symsnowfairy]

There are costas loops for quadrature signals.

I can not find it,could you give some link?Thanks!

 

[symsnowfairy]

I have found it, **broken link removed**

thanks!