电子工程英语句子（十)
<p>分享一些电子工程相关英语。</p><p>1.<span word="An">An</span> <span word="implicit">implicit</span> <span word="assumption">assumption</span> <span word="in">in</span> <span word="our">our</span> <span word="discussion">discussion</span> <span word="is">is</span> <span word="that">that</span> <span word="the">the</span> <span word="power">power</span> <span word="levels">levels</span> <span word="of">of</span> <span word="all">all</span> <span word="stations">stations</span> <span word="are">are</span> <span word="the">the</span> <span word="same">same</span> <span word="as">as</span> <span word="perceived">perceived</span> <span word="by">by</span> <span word="the">the</span> <span word="receiver">receiver</span>.</p><p>1.在我们的讨论中隐含着一个假设是，所有基站的功率水平在接收器看来都是一样的。</p><p>2.<span word="CDMA">CDMA</span> <span word="it">it</span> <span word="typically">typically</span> <span word="used">used</span> <span word="for">for</span> <span word="wireless">wireless</span> <span word="systems">systems</span> <span word="with">with</span> <span word="a">a</span> <span word="fixed">fixed</span> <span word="base">base</span> <span word="station">station</span> <span word="and">and</span> <span word="many">many</span> <span word="mobile">mobile</span> <span word="stations">stations</span> <span word="at">at</span> <span word="varying">varying</span> <span word="distances">distances</span> <span word="from">from</span> <span word="it">it</span>.</p><p>2.<span word="CDMA">CDMA</span>通常用于无线系统，系统中包含一个固定站和许多与它距离不同的移动站。</p><p>3.<span word="The">The</span> <span word="power">power</span> <span word="levels">levels</span> <span word="received">received</span> <span word="at">at</span> <span word="the">the</span> <span word="base">base</span> <span word="station">station</span> <span word="depend">depend</span> <span word="on">on</span> <span word="how">how</span> <span word="far">far</span> <span word="away">away</span> <span word="the">the</span> <span word="transmitters">transmitters</span> <span word="are">are</span>.</p><p>3.基站收到的功率水平取决于发射机与它的距离。</p><p>4.<span word="A">A</span> <span word="good">good</span> <span word="heuristic">heuristic</span> <span word="here">here</span> <span word="is">is</span> <span word="for">for</span> <span word="each">each</span> <span word="mobile">mobile</span> <span word="station">station</span> <span word="to">to</span> <span word="transmit">transmit</span> <span word="to">to</span> <span word="the">the</span> <span word="base">base</span> <span word="station">station</span> <span word="at">at</span> <span word="the">the</span> <span word="inverse">inverse</span> <span word="of">of</span> <span word="the">the</span> <span word="power">power</span> <span word="level">level</span> <span word="it">it</span> <span word="receives">receives</span> <span word="from">from</span> <span word="the">the</span> <span word="base">base</span> <span word="station">station</span>. <span word="In">In</span> <span word="other">other</span> <span word="words">words</span>, <span word="a">a</span> <span word="mobile">mobile</span> <span word="station">station</span> <span word="receiving">receiving</span> <span word="a">a</span> <span word="weak">weak</span> <span word="signal">signal</span> <span word="from">from</span> <span word="the">the</span> <span word="base">base</span> <span word="station">station</span> <span word="will">will</span> <span word="use">use</span> <span word="more">more</span> <span word="power">power</span> <span word="than">than</span> <span word="one">one</span> <span word="getting">getting</span> <span word="a">a</span> <span word="strong">strong</span> <span word="signal">signal</span>. <span word="The">The</span> <span word="base">base</span> <span word="station">station</span> <span word="can">can</span> <span word="also">also</span> <span word="give">give</span> <span word="explicit">explicit</span> <span word="commands">commands</span> <span word="to">to</span> <span word="the">the</span> <span word="mobile">mobile</span> <span word="stations">stations</span> <span word="to">to</span> <span word="increase">increase</span> <span word="or">or</span> <span word="decrease">decrease</span> <span word="their">their</span> <span word="transmission">transmission</span> <span word="power">power</span>.</p><p>4.这里有一个很好的启发，对于每个移动站来说，它们所发射到基站的功率与它们从基站接收到的功率相反。换句话说，一个从基站收到弱信号的移动台，将比一个收到强信号的移动台发射更高的功率。基站还可以向移动台发送明确的指令，让它们增加或者减少其发射功率。</p>
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