Jämför metoder
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| Dödräkning× | AHRS× | |
|---|---|---|
| Ämnesområde | Flyg- och rymdteknik | Flyg- och rymdteknik |
| Familj | Process / pipeline | Process / pipeline |
| Ursprungsår | 1940s | 1940s |
| Upphovsperson≠ | Maritime navigation tradition | Aviation heritage |
| Typ≠ | Navigation method | System |
| Ursprungskälla | Savage, P. G. (2007). Strapdown Inertial Integration Technology (2nd ed.). Strapdown Associates. link ↗ | Savage, P. G. (2007). Strapdown Inertial Integration Technology (2nd ed.). Strapdown Associates. link ↗ |
| Alias | ded reckoning, inertial navigation, odometry | AHRS system, attitude reference, heading sensor |
| Närliggande | 3 | 3 |
| Sammanfattning≠ | Dead Reckoning is a fundamental navigation method that estimates position and heading by integrating velocity and angular rate measurements from inertial sensors over time, without external references such as GPS. The term derives from maritime tradition ('deduced reckoning') and remains a cornerstone of aerospace and autonomous vehicle navigation. Dead reckoning works reliably in GPS-denied environments and is the baseline navigation method when external navigation aids are unavailable. | An Attitude Heading Reference System (AHRS) is a complete inertial navigation subsystem that estimates and outputs the three-dimensional orientation (attitude) and heading of a vehicle or platform. AHRS combines measurements from accelerometers, gyroscopes, and often magnetometers through sensor fusion algorithms (typically Kalman filters or complementary filters) to provide a drift-free, fast attitude estimate. AHRS is standard in aviation, marine navigation, and modern autonomous systems. |
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