http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113962265-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_99bf2d1971e40aca0f59dc5e72b89470 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F2218-04 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F18-23 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F17-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F17-141 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F18-22 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06F17-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06F17-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06K9-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06K9-00 |
| filingDate | 2021-10-25^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_200b266cf9d31f6b0edf5ebac3e476ad http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_76775e3429f7a4f0ba5ccecd0b641e3e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7e972af815e6950995a07bc16a0f0b5a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ea29114a2dbf026c3c8199934552a15d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_127921f38a27abe45c0b597e46459408 |
| publicationDate | 2022-01-21^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113962265-A |
| titleOfInvention | Method and device for underdetermined blind source separation based on structured sparse subspace clustering |
| abstract | The present invention provides an underdetermined blind source separation method and device based on structured sparse subspace clustering. The method includes: firstly, a short-time Fourier transform is used to convert a time-domain signal into a time-frequency domain; For stability, the time-frequency interval windowing method is used to screen single source points with high energy values. Then, using the combined mixture matrix estimation method of structured sparse subspace clustering and improved potential function, structured sparse subspace clustering can determine the number of source signals and obtain the classification of data, and the improved potential function method can accurately determine the mixture matrix vector , estimating the mixing matrix. Next, the source signal is reconstructed using the spatial projection method based on the estimation of the source number combined with the minimum l 1 norm method, and finally the time-frequency domain reconstructed signal is restored to the time domain by using the inverse short-time Fourier transform. The invention can directly determine the number of source signals, has high precision and strong robustness, and can accurately reconstruct the source signals from the observed signals. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115859050-A |
| priorityDate | 2021-10-25^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID24404 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419559532 |
Showing number of triples: 1 to 25 of 25.