diff options
| author | jcorgan <jcorgan@221aa14e-8319-0410-a670-987f0aec2ac5> | 2007-04-03 19:53:50 +0000 |
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| committer | jcorgan <jcorgan@221aa14e-8319-0410-a670-987f0aec2ac5> | 2007-04-03 19:53:50 +0000 |
| commit | 0825379873157f65ebbcdaeed47da5bd760c5276 (patch) | |
| tree | 5c69e43679d071de035c27f6784badc0d8ed050b /gnuradio-examples/python/hier/dect/README | |
| parent | 5943dd46802d6649686e7e94303405561f14f027 (diff) | |
Merged r4429:4857 from developer branch jcorgan/dect into trunk, passes distcheck.
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@4858 221aa14e-8319-0410-a670-987f0aec2ac5
Diffstat (limited to 'gnuradio-examples/python/hier/dect/README')
| -rw-r--r-- | gnuradio-examples/python/hier/dect/README | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/gnuradio-examples/python/hier/dect/README b/gnuradio-examples/python/hier/dect/README new file mode 100644 index 0000000000..231b1af673 --- /dev/null +++ b/gnuradio-examples/python/hier/dect/README @@ -0,0 +1,45 @@ +This directory contains a work in progress service monitor for DECT +digital cordless phone base stations and handsets. + + +Status +------ + +2007 Apr 03 - Development on hold. +2007 Feb 11 - Added GMSK demodulation and option to log to file +2007 Feb 10 - Able to tune and log filtered baseband to file + + +Files +----- + +usrp_dect.py - DECT receiver application + +dect_receiver.py - Top-level hierarchical block (new type) implementing + receiver + +usrp_source.py - Hierarchical block (new type) implementing a USRP + complex source, with convenience functions for tuning, + gain, decimation, etc. + +gmsk2.py - Hierarchical block (new type) implementing GMSK + modulation and demodulation. This will eventually go + into the core blksimpl directory + +DECT Modulation Details +----------------------- + +In the US, the FCC has allocated four carrier frequencies for DECT usage: + +Channel Frequency +------- --------- + 1 1921.536 MHz + 2 1923.264 MHz + 3 1924.992 MHz + 4 1926.720 MHz + +These are spaced at 1.728 MHz intervals. + +The DECT PHY uses GMSK with a 0.5 bandwidth-time product at 1.152 Msym/sec, +for an occupied bandwidth (99% power) of 1.186 MHz (1.03 x symbol rate.) + |