Title:
ATTITUDE ANGLE SENSOR CALIBRATING DEVICE FOR ARTIFICIAL SATELLITE
Document Type and Number:
Japanese Patent JP3428539
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a calibration device for enhancing the accuracy of measured values obtained by an attitude angle sensor.
SOLUTION: A satellite position/attitude presumer 2 reads in photographed landform data 4 from an image data memory 3, and then the position of a GCP(ground control point) included in the landform image data 4 is derived therefrom by stereoscopic image measurement. The attitude angle of a satellite at the hour is presumed from a relationship between the derived value and the corresponding true value of the position of the GCP, and an obtained signal is outputted as satellite attitude presumption data 5. Then, an attitude angle sensor data corrector 1 calibrates attitude angle measurement data 103 by using the presumption data 5 corresponding thereto in measuring time, thereby outputting a satellite attitude angle presumption signal 6.
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Inventors:
Toshiaki Yamashita
Application Number:
JP35239799A
Publication Date:
July 22, 2003
Filing Date:
December 10, 1999
Export Citation:
Assignee:
NEC
International Classes:
G01C21/24; B64G1/36; G01C1/00; G01C15/00; G01C25/00; G01S17/02; B64G1/10; B64G1/66; (IPC1-7): G01C21/24; G01C1/00; G01C15/00; G01C25/00; G01S17/02
Domestic Patent References:
| JP7159172A | ||||
| JP989558A | ||||
| JP10203496A |
Other References:
【文献】米国特許5963166(US,A)
【文献】国際公開98/17060(WO,A1)
【文献】国際公開98/17060(WO,A1)
Attorney, Agent or Firm:
Yasuo Suzuki (1 person outside)