The inventive carrier recovery means comprises at least first and second phase error detecting means in which {TAIL ~ the first phase error detecting means} generates {HEAD ~ a robust phase error signal} based on a digital input signal 
The inventive carrier recovery means comprises at least first and second phase error detecting means in which { TAIL ~ the first phase error detecting means } generates { HEAD ~ a robust phase error signal } based on a digital input signal
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH