http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103322982-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6e5befcceafafd9ceafe6a8ec1534c88 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01C11-02 |
| filingDate | 2013-06-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9f313c5c3f2bed78681f68f6ba9f4f7e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cb08048d3912db02e6d2544d1a99d54f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_deaf38beb7c1fc9c984e38b7ddeb87ab http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f4871a1d486e1cb353ce0242caa1cc04 |
| publicationDate | 2015-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103322982-B |
| titleOfInvention | On-track space camera gain regulating method |
| abstract | The invention discloses an on-track space camera gain regulating method, which relates to an on-track gain regulating method of a space camera for earth observation, and aims to the solve the problems that at present, a space camera adopts a fixed gain so as to lead to overall dimming of part of images, poor image gradation, low signal to noise ratio and the like. The regulating method comprises the following steps of: before a spacecraft is launched, acquiring a gain factor corresponding to the maximal digital quantification output value of images under maximal radiance through laboratory radiometric calibration; after the spacecraft is launched, simulating the track of the spacecraft with high accuracy, and outputting the solar altitude of sub-satellite points at different shooting time; converting the solar altitude into the solar zenith angle, thereby obtaining the radiance of an entrance pupil part by an MODTRAN atmospheric radiation transfer tool when the space camera forms images of a ground feature corresponding to the maximal object reflectivity at different time; calculating gain factors of the space camera at different shooting time; combining the code values corresponding to the gain factors obtained through calculation with the shooting time into a program control instruction, and sending the program control instruction from a ground measurement and control station to the spacecraft to execute through a measurement and control antenna. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106227066-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106227066-B |
| priorityDate | 2013-06-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.