| Project/Area Number |
61850015
|
|---|
| Research Category |
Grant-in-Aid for Developmental Scientific Research
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Aerospace engineering
|
|---|
| Research Institution | University of Tokyo |
|---|
Principal Investigator |
TANABE Toru Faculty of Engineering, University of Tokyo, 工学部, 教授 (40010912)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
HANAOKA Teruaki Faculty of Engineering, University of Tokyo, 工学部, 助手 (90011147)
|
|---|
| Project Period (FY) |
1986 – 1987
|
| Project Status |
Completed (Fiscal Year 1987)
|
| Budget Amount *help |
¥8,500,000 (Direct Cost: ¥8,500,000)
Fiscal Year 1987: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1986: ¥6,500,000 (Direct Cost: ¥6,500,000)
|
|---|
| Keywords | Hybrid inertial navigation / Strapped-down inertial navigation / Star image sensof / Angular rate sensor |
|---|
| Research Abstract |
1. In the present study it is demonstrated the feasibility of a hybrid inertial navigation system combining a strapped-down type inertial navigation system with a star image sensor. The hybrid system is actually mechanized and built. The system is tested in the laboratory using a three-axis motion table. It is considered the rested system is a potential candidate navigation system for a future satellite or spacecraft.
2. The hybrid inertial navigation system consists of three augular rate sensors, one CCD type star image sensor and a data processing unit. The data processing unit uses M68020 and M68000 with sufficient real time processing capability.
3. The test is conducted by mounting the hybrid system on a three-axis motion table. A set of pseudo stars is used unstead of real star images due to the laboratory environment. A check is done for the CCD star image sensor using real star images as for the capability of star identification. assitufe estimation. The test results of the hybrid system support the theory of hybrid inertial navigation system. The results also indicate a porentiality of building a design theory of the hybrid inertial navigation system. The future research extends the present study to include the possibility of adding a GPS receiver to the system resulting a full 6 DOF hybrid inertial nabigation system. A study to include FDIR (Fault Detection, Isolation and Reconfiguration) capability in the system is also considerable.
|
