Hi,
Sorry for the delay. I have run simulation with you attached file and able to observe the incremental numerr for decoder instance 1 and 2. As I understand it, how the BER estimator works is by re-encoding the decoded data and then perform comparison. If there is error at the decoder output, there is a possibility that it might lead to more error after the encoder within the Viterbi IP. This will lead to much high estimated BER at the output.
To help to further narrowing down the issue, would you mind to perform a comparison of your convolution encoder's output against golden reference ie Matlab. This is to help isolating any potential issue at the encoder output prior feeding into the Decoder IP.
Please let me know if there is any concern. Thank you.
Best regards,
Chee Pin
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