| Presentation | 2002/10/4 Orbit Determination Algorithm using DGPS for Low Earth Orbit Satellite YoungHo Sohn, ChangDon Kee, HakJung Kim, SangRyool Lee, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we have proposed orbit determination algorithm using DGPS for Low Earth Orbit (LEO) satellite as alternative about conventional methods and developed DGPS environment for simulation. The conventional radar tracking or optical method has some problems (more station needed for low orbit satellite, high cost, low accuracy and dependence of operation). But our DGPS orbit determination method can solve these problems. We have considered almost effective perturbations (asymmetry gravitational force, Sun's gravity, Moon's gravity, Solar pressure, Air drag) on ECI coordinate and showed their effects graphically. Using Extended Kalman Filter we have made linear system model and estimated state variables. To test DGPS orbit determination virtually using this algorithm, we have simulated DGPS environment in space including most effects (GPS satellites arrangement, clock errors, ionosphere delay, etc.). From this, we could confirm good performance and possibility of our proposed algorithm. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Orbit determination / Perturbation / Extended Kalman filter / LEO / DGPS |
| Paper # | SAT2002-74 |
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| Conference Information | |
| Committee | SAT |
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| Conference Date | 2002/10/4(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Satellite Telecommunications (SAT) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Orbit Determination Algorithm using DGPS for Low Earth Orbit Satellite |
| Sub Title (in English) | |
| Keyword(1) | Orbit determination |
| Keyword(2) | Perturbation |
| Keyword(3) | Extended Kalman filter |
| Keyword(4) | LEO |
| Keyword(5) | DGPS |
| 1st Author's Name | YoungHo Sohn |
| 1st Author's Affiliation | Seoul National University, Korea Aerospace Research Institute() |
| 2nd Author's Name | ChangDon Kee |
| 2nd Author's Affiliation | Seoul National University, Korea Aerospace Research Institute |
| 3rd Author's Name | HakJung Kim |
| 3rd Author's Affiliation | Seoul National University, Korea Aerospace Research Institute |
| 4th Author's Name | SangRyool Lee |
| 4th Author's Affiliation | Seoul National University, Korea Aerospace Research Institute |
| Date | 2002/10/4 |
| Paper # | SAT2002-74 |
| Volume (vol) | vol.102 |
| Number (no) | 360 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |