Error in comm.CarrierSynchronizer documentation?
    조회 수: 2 (최근 30일)
  
       이전 댓글 표시
    
I guess there could be an error in the documentation of comm.CarrierSynchronizer: the quantity theta should be defined as
(Bn * T) / (zeta + 1/(4*zeta))
according to eq. C.57 of the reference [1], where T (which is missing in the formula of the documentation) is the sampling period.
In the code of comm.CarrierSynchronizer it is actually defined like that (lines 452-462):
      PhaseRecoveryLoopBandwidth = cast(...
          obj.NormalizedLoopBandwidth *obj.SamplesPerSymbol, ...
          obj.pInputDataType);
      % K0
      PhaseRecoveryGain = cast(obj.SamplesPerSymbol,...
          obj.pInputDataType);
      theta = PhaseRecoveryLoopBandwidth/...
          ((obj.DampingFactor + 0.25/obj.DampingFactor)*...
          obj.SamplesPerSymbol);      
where obj.NormalizedLoopBandwidth is the loop bandwidth normalized to the input sampling rate, therefore equal to Bn * T, and SamplesPerSynbol cancels out between numerator and denominator.
댓글 수: 1
답변 (0개)
참고 항목
카테고리
				Help Center 및 File Exchange에서 Synchronization and Receiver Design에 대해 자세히 알아보기
			
	Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!

