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How to get an output of viterbi decoding IP?

Altera_Forum
Honored Contributor II
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Hi all 

 

I am using viterbi decoding to establish an OFDM system, while I can not get the output 

 

I'm using parallel implementation with continuous optimization  

traceback= 42 soft bits = 1 N = 2 L = 7 GA = 133 GB = 171 

 

The output signal "source_val" "decbit" still force low, while I can get the result if I choose the block optimization with all other things same. 

 

Please help me why it doesn't work~~ 

 

Thanks
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Altera_Forum
Honored Contributor II
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Did anybody solve this problem?

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