http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111665506-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01S13-90 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01S13-90 |
| filingDate | 2020-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111665506-B |
| titleOfInvention | Variable repetition frequency homogenization resampling method for high resolution SAR based on de-slope processing |
| abstract | A high-resolution SAR variable repetition frequency homogenization resampling method based on de-skew processing is proposed. The data of each uniform sampling segment is subjected to beam center rotation Doppler modulation frequency de-slope processing, and then in-band Doppler variation correction is performed in the range frequency domain to obtain a baseband uniform sampling data segment that satisfies the Nyquist sampling law, and then uses sinc The interpolation algorithm interpolates the uniform sampling segment data to the full data uniform sampling time to complete the uniform resampling process. The method of the invention is used for the high-resolution segmented variable repetition frequency beamforming mode, the sliding beamforming mode, the TOPSAR mode and the Mosaic mode carried by the satellite with a large rotation angle, and has the characteristics of high efficiency, high precision, robustness and strong practicability. |
| priorityDate | 2020-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.