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| TCAS× | Navigazione Proporzionale× | |
|---|---|---|
| Campo | Aerospaziale | Aerospaziale |
| Famiglia | Process / pipeline | Process / pipeline |
| Anno di origine≠ | 1989 | 1957 |
| Ideatore≠ | FAA, ICAO | Lin-Hsiung Chu |
| Tipo≠ | Avionics system | Guidance law |
| Fonte seminale≠ | Federal Aviation Administration (2017). Traffic Collision Avoidance System (TCAS II). Technical Standard Order TSO-C119c. link ↗ | Knox, W. P. (1971). On optimal proportional navigation. IEEE Transactions on Aerospace and Electronic Systems, AES-7(3), 417–426. link ↗ |
| Alias≠ | TCAS II, ACAS, traffic avoidance | PN, PN law |
| Correlati | 3 | 3 |
| Sintesi≠ | TCAS (Traffic Collision Avoidance System) is an airborne safety system that detects nearby aircraft using radar and mode C altitude reports, then provides traffic advisories (TAs) and recommended collision avoidance maneuvers (RAs) to flight crews. Mandated globally on commercial aircraft since 2000, TCAS is considered a last line of defense against mid-air collisions. TCAS II is the most common variant; TCAS I is a simplified advisory-only version for general aviation. | 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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