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| author | jcorgan <jcorgan@221aa14e-8319-0410-a670-987f0aec2ac5> | 2006-10-31 19:15:02 +0000 |
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| committer | jcorgan <jcorgan@221aa14e-8319-0410-a670-987f0aec2ac5> | 2006-10-31 19:15:02 +0000 |
| commit | 50a6df5e198231188f40c23e609a3fe078ad436a (patch) | |
| tree | cfadbb794cd86350adff9461fc2fa9735cb7c640 /gr-pager/README | |
| parent | 2c1032480d2874f38af9b5b9d18e753e968619e5 (diff) | |
Restore gr-pager to trunk.
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@3909 221aa14e-8319-0410-a670-987f0aec2ac5
Diffstat (limited to 'gr-pager/README')
| -rw-r--r-- | gr-pager/README | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/gr-pager/README b/gr-pager/README new file mode 100644 index 0000000000..4327f258ea --- /dev/null +++ b/gr-pager/README @@ -0,0 +1,37 @@ +This GNU Radio component implements (will implement) common radiopager +signaling protocols such as POCSAG and FLEX. + +Current status (10/6/06): + +FLEX receiving is completed except for addition of BCH error correction. + +pager.slicer_fb() Accepts a complex baseband downconverted channel + and outputs 4-level FSK symbols [0-3] as bytes. + +pager.flex_sync() Accepts 4FSK symbol stream at channel rate and + outputs four phases of FLEX data bits as bytes. + Auto-shifts to 3200 bps as determined by received + FLEX synchronization word. + +pager.flex_deinterleave() Accepts a single phase of FLEX data bits and performs + deinterleaving on 256-bit blocks. Resulting code + words are error corrected using BCH 32,21 ecc (stub) + and converted into FLEX data words for output. + +pager.flex_parse() Sink block that accepts a single phase of FLEX data + words and unpacks and parses individual pages. These are + passed outside the data plane via gr_message's. + +pager.flex_decode() Combines the above blocks correctly to convert + from downconverted baseband to pager messages + +usrp_flex.py Instantiates USRP receive chain to receive FLEX + protocol pages. See command-line help for options. + Right now this installs into $PREFIX/bin but will + probably make it into gnuradio-examples. + +aypabtu.py Decodes FLEX pages from multiple rx channels in a range. + Incomplete. + +Johnathan Corgan +jcorgan@aeinet.com |