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Sun Dec 2 22:27:44 CET 2007

phase synchronization

I'm confusing 2 things:

  * bit symbol synchronization
  * carrier phase synchronization

Using a complex matched filter, phase synchronization can be done
entirely by using an extra phase rotation operation: it doesn't really
matter what comes out, as long as:

 - the matched filter's envelope is synchronized
 - we're using I and Q filters

It's clear that mismatching the symbol clock has a lot less effect
than mismatching the carrier phase. When compensating the carrier
phase, we compensate what's aliased down after subsampling at symbol
rate.

This still needs 2 separate synchronization methods: bit symbol
synchronization (which sample point to start filtering) and carrier
frequency/phase compensation.




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