http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011182325-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_99505f5f312672820e9f78c254c00a4d |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B1-7163 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L1-0625 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B7-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B1-69 |
| filingDate | 2007-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_340b59c4bf77327d03116ec2616fbb62 |
| publicationDate | 2011-07-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2011182325-A1 |
| titleOfInvention | Space-time coding/decoding method for a dual-antenna pulse uwb communication system |
| abstract | This invention relates to a space-time coding method for a UWB transmission system comprising two radiation elements. This method codes a block of information symbols (S=(a 1 ,a 2 ,a 3 ,a 4 )) belonging to a PPM modulation constellation or a PPM-PAM composite modulation constellation with a number of time positions greater than or equal to 3, into a sequence of vectors (c 1 0 ,c 2 0 ,c 1 1 ,c 2 1 ), the components of a vector being intended to modulate a UWB pulse signal for a radiation element of said system and for a given transmission interval (T f ). A first and a second of said vectors are obtained by means of a first linear combination of a first and a second pair of said symbols, and a third and a fourth of said vectors are obtained by means of a second linear combination of said first and second pairs of said symbols, the first and the second linear combinations using scalar coefficients ({tilde over (α)}, {tilde over (β)}, −{tilde over (β)}, {tilde over (α)}) of which the corresponding ratios are approximately equal to the Golden number and to its opposite, the components of one of said vectors also being permuted according to a cyclic permutation prior to modulating said pulse UWB signal. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103973373-A |
| priorityDate | 2006-03-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.