Find Delay Block in matlab simulink

조회 수: 1 (최근 30일)
Sujeet Kumar Padhi
Sujeet Kumar Padhi . 2012년 5월 6일
답변: Tasos Giannoulis . 2017년 1월 27일
How to use the find delay block ??? Its not working properly. The delay varies each time I connect to the error block to find BER.. can somebody help me plz... And How to find how much delay an IIR filter creates ???

답변 (1개)

Tasos Giannoulis
Tasos Giannoulis 2017년 1월 27일
The first thing you can try is to increase the "Correlation window length" (at the expense of slower simulaton). It needs to be high enough to identify the delay.
I'd say that FIR filters introduce a delay equal to half their filter order. IIR filters can have different implementations. If you can see a filter order, that would be indicative.
If the delay block does not converge to a value, then it may be the case that your received signal is corrupted, so instead of computing BER, you can first troubleshoot by looking at some Constellation Diagrams.


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