BER Testing and Verification

• Testing of Viterbi Decoders requires large complex test cases

• Two utilities included with core to generate and analyze test cases

• Stimulus and Channel noise:

  • Completely paramaterizable
  • Generates a random bitstream, encodes it, and adds errors
  • Writes out Quartus or Max+PlusII vector file
  • Writes out differences between transmitted and received symbols

• Error Correction Performance:

  • Extracts test results from Quartus or Max+PlusII simulation
  • Returns Bit Error Rate (BER), by comparing transmitted bits with decoded bits

• Test system level performance and choice of parameters of Viterbi decoder without the need to compile

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