http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2186297-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_85d41fb1f3bcc2e2bb166676457b1835 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01V2210-52 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01V1-362 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01V1-36 |
| filingDate | 1996-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c22b2763d372922c823897ccf1c982c1 |
| publicationDate | 1998-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2186297-A1 |
| titleOfInvention | Spatially distributed signal sampling method |
| abstract | A method of preserving frequency components in digitally sampled signals exceeding a maximum frequency related to a predetermined digital sample interval. The signals correspond to a plurality of sensors positioned at spaced apart locations, and the signals from each of the plurality of sensors are digitally sampled at the predetermined digital sample interval. The method includes the steps of determining time adjustment values corresponding to each sensor which provide amplitude correspondence between each of the signals generated by each of the sensors in response to different propagation times of energy from an energy source to each of the sensors; adjusting a time of acquisition of each digital sample from each of the sensors by applying the corresponding time adjustment value to generate time-adjusted samples; and combining all the time adjusted samples into a combined output signal having a sampling time interval smaller than the predetermined digital sample interval. In a preferred embodiment, the sensors comprise seismic sensors positioned at spaced apart locations. The step of time shifting the signals from the plurality of sensors comprises applying a normal moveout correction to the signals from the plurality of seismic sensors. Digital signal samples to which moveout correction is applied are then positioned in an output buffer in the exact time locations defined by the normalmoveout correction. In the one embodiment of the invention, the step of combining the signals from the plurality of seismic sensors further comprises generating acommon mid-point (CMP) trace stack of the time-adjusted signals from the plurality of seismic sensors. |
| priorityDate | 1996-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 16.