46 lines
1.9 KiB
Bash
46 lines
1.9 KiB
Bash
#!/bin/sh
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# Example of how an LDPC code can be encoded using using sparse,
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# dense, and mixed representations of the generator matrix. The dense
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# and mixed representations are based on the same set of message bits
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# as the sparse method with minprod heuristic. This allows the correctness
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# of these methods to be checked by verifying that they all produce the same
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# result when encoding random messages. The results are also checked by
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# 'verify'.
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#
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# A (400,200) LDPC code with 3 checks per bit is used for the test.
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set -e # Stop if an error occurs
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set -v # Echo commands as they are read
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make-ldpc ex-ldpc-encode.pchk 200 400 1 evenboth 3
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make-gen ex-ldpc-encode.pchk ex-ldpc-encode.genf sparse first
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make-gen ex-ldpc-encode.pchk ex-ldpc-encode.genc sparse mincol
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make-gen ex-ldpc-encode.pchk ex-ldpc-encode.genp sparse minprod
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make-gen ex-ldpc-encode.pchk ex-ldpc-encode.gend dense ex-ldpc-encode.genp
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make-gen ex-ldpc-encode.pchk ex-ldpc-encode.genm mixed ex-ldpc-encode.genp
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rand-src ex-ldpc-encode.src 1 200x10
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encode ex-ldpc-encode.pchk ex-ldpc-encode.genf ex-ldpc-encode.src \
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ex-ldpc-encode.encf
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encode ex-ldpc-encode.pchk ex-ldpc-encode.genc ex-ldpc-encode.src \
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ex-ldpc-encode.encc
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encode ex-ldpc-encode.pchk ex-ldpc-encode.genp ex-ldpc-encode.src \
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ex-ldpc-encode.encp
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encode ex-ldpc-encode.pchk ex-ldpc-encode.gend ex-ldpc-encode.src \
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ex-ldpc-encode.encd
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encode ex-ldpc-encode.pchk ex-ldpc-encode.genm ex-ldpc-encode.src \
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ex-ldpc-encode.encm
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cmp ex-ldpc-encode.encp ex-ldpc-encode.encd
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cmp ex-ldpc-encode.encp ex-ldpc-encode.encm
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verify ex-ldpc-encode.pchk ex-ldpc-encode.encf ex-ldpc-encode.genf \
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ex-ldpc-encode.src
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verify ex-ldpc-encode.pchk ex-ldpc-encode.encc ex-ldpc-encode.genc \
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ex-ldpc-encode.src
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verify ex-ldpc-encode.pchk ex-ldpc-encode.encp ex-ldpc-encode.genp \
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ex-ldpc-encode.src
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