| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b5231c81de1a546c1d6a9325c10910ce |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01S7-021
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01S3-46 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01S5-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01S5-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01S5-0249
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01S3-50 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01S5-02 |
| filingDate |
2013-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_08df748869181d615f218257c9b956b6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7161b2638a7f6e6f3f55dcab44180880 |
| publicationDate |
2014-09-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2014149092-A2 |
| titleOfInvention |
Frequency difference of arrival (fdoa) for geolocation |
| abstract |
A method for determining a FDOA of a pulsed waveform received by two sensors includes obtaining a respective plurality of in-phase and quadrature-phase (IQ) samples indicative of a pulse envelope of the received pulsed waveform. The method includes determining a TDOA responsive to a leading edge of a pulse of the pulsed waveform and obtaining a first cross correlation of IQ samples at a delay (d c ) closest to the TDOA, and respective second and third cross correlations at least one additional delay (d c +1 and d c -1) on either side of the closest delay. The method includes refining the approximation of the TDOA according to an interpolation of amplitudes of the cross-correlation and determining a respective rate of change of cross-correlation phase (Δϕ ). The method includes approximating a straight line fit to the rates of change of cross-correlation phase (dΔϕ/dt), the slope of the straight line representative of the FDOA. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2018194716-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2757197-C1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10422847-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AU-2017410814-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107526073-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107526073-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2020517932-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AU-2017410813-B2 |
| priorityDate |
2013-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |