民航飞机定位规则落后时代
<p><span word="For">For</span> <span word="the">the</span> <span word="second">second</span> <span word="time">time</span> <span word="in">in</span> 2017, <span word="a">a</span> <span word="passenger">passenger</span> <span word="plane">plane</span> <span word="vanished">vanished</span> <span word="midflight">midflight</span>. <span word="In">In</span> <span word="March">March</span>, <span word="Malaysia">Malaysia</span> <span word="Airlines">Airlines</span> <span word="Flight">Flight</span> 370 <span word="disappeared">disappeared</span> <span word="and">and</span> <span word="the">the</span> <span word="most">most</span> <span word="expensive">expensive</span> <span word="search">search</span> <span word="mission">mission</span> <span word="in">in</span> <span word="recent">recent</span> <span word="aviation">aviation</span> <span word="history">history</span> <span word="followed">followed</span>. <span word="It">It</span> <span word="is">is</span> <span word="still">still</span> <span word="missing">missing</span>. <span word="On">On</span> <span word="Sunday">Sunday</span>, <span word="AirAsia">AirAsia</span> <span word="Flight">Flight</span> 8501 <span word="disappeared">disappeared</span> <span word="off">off</span> <span word="Indonesia">Indonesia</span>. <span word="It">It</span> <span word="took">took</span> <span word="about">about</span> <span word="two">two</span> <span word="days">days</span> <span word="for">for</span> <span word="search">search</span> <span word="teams">teams</span> <span word="to">to</span> <span word="find">find</span> <span word="debris">debris</span>.</p><p>2017年，先后有两架客机在飞行途中消失。3月，马来西亚航空(<span word="Malaysia">Malaysia</span> <span word="Airlines">Airlines</span>)370航班失联，触发了近年航空史上最昂贵的搜索行动。370航班至今仍然杳无踪迹。上周日，亚洲航空(<span word="AirAsia">AirAsia</span>)8501航班在飞离印度尼西亚后失踪。搜救队伍用了大约两天时间才找到了飞机残骸。</p><p><span word="These">These</span> <span word="similar">similar</span> <span word="incidents">incidents</span> <span word="suggest">suggest</span> <span word="that">that</span> <span word="the">the</span> <span word="current">current</span> <span word="system">system</span> <span word="for">for</span> <span word="tracking">tracking</span> <span word="aircraft">aircraft</span> — <span word="via">via</span> <span word="ground">ground</span>-<span word="based">based</span> <span word="radar">radar</span> <span word="and">and</span> <span word="satellite">satellite</span> — <span word="is">is</span> <span word="insufficient">insufficient</span>. <span word="It">It</span>’<span word="s">s</span> <span word="shocking">shocking</span> <span word="that">that</span> <span word="two">two</span> <span word="planes">planes</span> <span word="carrying">carrying</span> <span word="hundreds">hundreds</span> <span word="of">of</span> <span word="people">people</span> <span word="could">could</span> <span word="go">go</span> <span word="missing">missing</span>, <span word="especially">especially</span> <span word="given">given</span> <span word="advances">advances</span> <span word="in">in</span> <span word="wireless">wireless</span> <span word="communication">communication</span>.</p><p>两起相似的事故意味着，目前用于追踪飞机位置的方法——通过地面的雷达以及卫星——并不足以完成任务。尤其是考虑到无线通讯领域的种种进步，两架载有数百名乘客的飞机居然会失踪，这让人感到不可思议。</p><p><span word="From">From</span> <span word="a">a</span> <span word="technological">technological</span> <span word="standpoint">standpoint</span>, <span word="it">it</span>’<span word="s">s</span> <span word="possible">possible</span> <span word="to">to</span> <span word="outfit">outfit</span> <span word="aircraft">aircraft</span> <span word="to">to</span> <span word="stream">stream</span> <span word="flight">flight</span> <span word="data">data</span> <span word="in">in</span> <span word="real">real</span> <span word="time">time</span>. <span word="Carriers">Carriers</span> <span word="have">have</span> <span word="been">been</span> <span word="reluctant">reluctant</span> <span word="to">to</span> <span word="do">do</span> <span word="so">so</span> <span word="because">because</span> <span word="in">in</span>-<span word="flight">flight</span> <span word="disasters">disasters</span> <span word="are">are</span> <span word="rare">rare</span>, <span word="and">and</span> <span word="streaming">streaming</span> <span word="is">is</span> <span word="costly">costly</span>. <span word="But">But</span> <span word="shaken">shaken</span> <span word="by">by</span> <span word="the">the</span> <span word="loss">loss</span> <span word="of">of</span> <span word="Flight">Flight</span> 370, <span word="the">the</span> <span word="aviation">aviation</span> <span word="industry">industry</span> <span word="and">and</span> <span word="aviation">aviation</span> <span word="regulators">regulators</span> <span word="are">are</span> <span word="coming">coming</span> <span word="around">around</span> <span word="to">to</span> <span word="the">the</span> <span word="need">need</span> <span word="for">for</span> <span word="change">change</span>.</p>
页:
[1]