| 翻訳と辞書 |
| Portable Collision Avoidance System ： ウィキペディア英語版 |
Portable collision avoidance system
A portable collision avoidance system (PCAS) is an aircraft collision avoidance system similar in function to traffic collision avoidance system (TCAS). TCAS is the industry standard for commercial collision avoidance systems but PCAS is gaining recognition as an effective means of collision avoidance for general aviation and is in use the world over by independent pilots in personally owned or rented light aircraft as well as by flight schools and flying clubs.
Simply put PCAS allows pilots, particularly in single pilot VFR aircraft, a powerful additional instrument to augment their vision and situational awareness of other aircraft operating in their vicinity. A basic system will notify pilots of the nearest transponder equipped aircraft, its relative height and distance, and importantly if the distances are closing or increasing. More advanced systems can integrate with EFIS overlaying nearby aircraft on the GPS map with relative height information. This information not only reduces pilot work loads in busy airspace but also helps pilots to hone their ability to spot nearby aircraft by alerting them when an aircraft is within a range that it might normally go unnoticed.
PCAS is a trademark of Zaon Flight Systems, Inc. which has since gone out of business. The original PCAS technology was developed in 1999 and eventually progressed to the fourth generation. Through this technology, transponder-equipped aircraft are detected and ranged, and the altitude is decoded. PCAS G4 technology has advanced to the point that highly accurate range, relative altitude, and 45 degree direction can be accurately detected in a portable cockpit device. PCAS gained notoriety with the growing popular TV series The Aviators (TV series) as a sponsor, and specifically in episode 6 airing on both PBS and the Discovery Channel Network.
== Basic operation ==
ATC ground stations and active TCAS systems transmit interrogation pulses on an uplink frequency of 1,030 megahertz. Aircraft transponders reply on a downlink frequency of 1,090 megahertz. PCAS devices detect these transponder responses, then analyze and display conflict information.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「Portable collision avoidance system」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|