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| Navigazione Proporzionale× | Filtro di Madgwick× | |
|---|---|---|
| Campo | Aerospaziale | Aerospaziale |
| Famiglia | Process / pipeline | Process / pipeline |
| Anno di origine≠ | 1957 | 2010 |
| Ideatore≠ | Lin-Hsiung Chu | Sebastian Madgwick |
| Tipo≠ | Guidance law | Filter algorithm |
| Fonte seminale≠ | Knox, W. P. (1971). On optimal proportional navigation. IEEE Transactions on Aerospace and Electronic Systems, AES-7(3), 417–426. link ↗ | Madgwick, S. O. H., Harrison, A. J. L., & Vaidyanathan, R. (2011). Estimation of IMU and MARG orientation using a gradient descent algorithm. IEEE International Conference on Rehabilitation Robotics (ICORR), 1–7. link ↗ |
| Alias | PN, PN law | Madgwick AHRS, gradient descent attitude filter |
| Correlati | 3 | 3 |
| Sintesi≠ | 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. | The Madgwick Filter is a computationally lightweight attitude estimation algorithm that fuses inertial measurements (accelerometer, gyroscope) with magnetic measurements (magnetometer) to compute a quaternion orientation. Introduced by Sebastian Madgwick in 2010, the algorithm uses gradient descent optimization to minimize the error between measured and expected sensor outputs, yielding accurate, drift-free attitude estimates on embedded systems with minimal computational cost. The Madgwick Filter is now ubiquitous in consumer electronics, robotics, and aerospace systems. |
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