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Period errar bits observed in data transmission

Question asked by luckfyzhang on Jul 28, 2018
Latest reply on Jul 31, 2018 by travisfcollins


I modified adi qpsk transmission model and used it to transmit and receive data. Data sychronization has been considered. In the transmission part I triggered transmitter once and ensured that it could transmit continuous and repeated data. In receiver part I triggered receiver periodically. During one single transmission and receiving process, I can see obvious low BER process and high BER process. I am wondering what reasons cause this problem.