13 lines
613 B
Bash
Executable File
13 lines
613 B
Bash
Executable File
#!/usr/bin/env bash
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#
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# David June 2019
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# Tests 700D OFDM modem fading channel performance, using a simulated channel
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results=$(mktemp)
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fading_dir=$1
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# BER should be around 4% for this test (it's better for larger interleavers but no one uses interleaving in practice)
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ofdm_mod --in /dev/zero --ldpc 1 --testframes 60 --txbpf | ch - - --No -24 -f -10 --mpp --fading_dir $fading_dir | ofdm_demod --out /dev/null --testframes --verbose 2 --ldpc 1 2> $results
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cat $results
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cber=$(cat $results | sed -n "s/^Coded BER.* \([0-9..]*\) Tbits.*/\1/p")
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python3 -c "import sys; sys.exit(0) if $cber<=0.05 else sys.exit(1)"
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