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| Hệ thống Tham chiếu Hướng và Thái độ (AHRS)× | GNSS RTK× | |
|---|---|---|
| Lĩnh vực | Hàng không vũ trụ | Hàng không vũ trụ |
| Họ | Process / pipeline | Process / pipeline |
| Năm ra đời≠ | 1940s | 1980s |
| Người khởi xướng≠ | Aviation heritage | GPS constellation |
| Loại≠ | System | Positioning method |
| Công trình gốc≠ | Savage, P. G. (2007). Strapdown Inertial Integration Technology (2nd ed.). Strapdown Associates. link ↗ | Teunissen, P. J. G., & Kleusberg, A. (Eds.). (2003). GPS for Geodesy (2nd ed.). Springer-Verlag. link ↗ |
| Tên gọi khác≠ | AHRS system, attitude reference, heading sensor | RTK, Real-Time Kinematic positioning, GNSS-RTK, differential GNSS |
| Liên quan | 3 | 3 |
| Tóm tắt≠ | 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. | Global Navigation Satellite System Real-Time Kinematic (GNSS RTK) is a high-precision positioning technique that uses carrier phase measurements from a reference receiver at a known location to correct the position estimates of a rover receiver in real time. Developed in the 1980s, RTK exploits spatial correlation of atmospheric errors to achieve centimeter-level accuracy within tens of kilometers of the reference station. RTK is now standard in surveying, construction, autonomous vehicles, and precision agriculture. |
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