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| Dubins-bana× | AHRS× | Proportionell navigering× | |
|---|---|---|---|
| Ämnesområde | Flyg- och rymdteknik | Flyg- och rymdteknik | Flyg- och rymdteknik |
| Familj | Process / pipeline | Process / pipeline | Process / pipeline |
| Ursprungsår≠ | 1957 | 1940s | 1957 |
| Upphovsperson≠ | Lester Dubins | Aviation heritage | Lin-Hsiung Chu |
| Typ≠ | Optimal curve | System | Guidance law |
| Ursprungskälla≠ | Dubins, L. E. (1957). On curves of minimal length with a constraint on average curvature and with prescribed initial and terminal positions and tangents. American Journal of Mathematics, 79(3), 497–516. DOI ↗ | Savage, P. G. (2007). Strapdown Inertial Integration Technology (2nd ed.). Strapdown Associates. link ↗ | Knox, W. P. (1971). On optimal proportional navigation. IEEE Transactions on Aerospace and Electronic Systems, AES-7(3), 417–426. link ↗ |
| Alias≠ | Dubins curve, RSR path, LSL path | AHRS system, attitude reference, heading sensor | PN, PN law |
| Närliggande | 3 | 3 | 3 |
| Sammanfattning≠ | The Dubins path is the shortest curve connecting two points in the plane with prescribed initial and terminal tangent directions, subject to a constraint on curvature. Introduced by Lester Dubins in 1957, it solved a fundamental problem in differential geometry and became essential in motion planning for aircraft, helicopters, and autonomous vehicles. A Dubins path consists of circular arcs and straight line segments arranged in a sequence such as RSR (Right-Straight-Right) or LSL (Left-Straight-Left). | 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. | Proportional Navigation (PN) is a guidance law that generates command accelerations proportional to the rate of change of the line-of-sight angle between a pursuer and target. Introduced by Lin-Hsiung Chu in the 1950s, it became the foundation of modern missile guidance systems. PN solves the pursuit-evasion problem by ensuring that the pursuer intercepts a moving target with minimal computational overhead. |
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