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class="Top w100"> <div id="gwlvfpk" class="w1000"> <div id="gwlvfpk" class="meau"> <span id="gwlvfpk" class="m1"></span> <span id="gwlvfpk" class="m2"></span> <span id="gwlvfpk" class="m3"></span> </div> <div id="gwlvfpk" class="Logo fl"><h1></h1></div> <div id="gwlvfpk" class="toptel"></div> <div id="gwlvfpk" class="clear"></div> </div> <div id="gwlvfpk" class="Nav w100"> <div id="gwlvfpk" class="Navlist w1000"> <ul> <li id="Top1"></li> </ul> <div id="gwlvfpk" class="clear"></div> </div> <div id="gwlvfpk" class="clear"></div> </div> <div id="gwlvfpk" class="clear"></div> </div> <div id="gwlvfpk" class="blockindex h450"> <div id="gwlvfpk" class="new9"> <div id="gwlvfpk" class="new91"> <h1>影響信號可靠傳輸?shù)闹饕蛩?/h1> 發(fā)布時間：2023-11-28 </div> <div id="gwlvfpk" class="new92"> <div class="gwlvfpk" id="contentt"></div> 影響信號可靠傳輸?shù)闹饕蛩赜卸?）信道特性的不理想；2）信道中噪聲的存在。因此，改善信道特性和減小信道噪聲是提高通信系統(tǒng)可靠性的方法之一；但問題還有另一方面，也可以提高通信系統(tǒng)的可靠性，即采用最佳接收。<br>最佳接收的概念：在不改變信道和噪聲的條件下，如何使正確接收信號的概率最大，使錯誤接收的概率減到最小。<br>問題的提出：<br>線性接收機如下圖所示<br>設(shè)“1”信號用表示，“0”信號為0電平。<br>采用上圖所示的接收機接收信號，這時，在接收端不需要把無失真的恢復(fù)出來，而只需判定是否存在即可。若存在則收到的為“1”信號，否則，收到的為“0”信號。<br>判定方式：使得在判定時刻，即時刻，是否存在，線性接收機輸出端有最大的差別。<br>差別主要取決于最佳接收準(zhǔn)則。 <div class="gwlvfpk" id="contentb"></div> </div> <div id="gwlvfpk" class="clearfix"></div> </div> <div>上一個：<a href="n136243.htm">劍靈延遲總在100以上(劍靈延遲不高但老掉線)</a><br /> 下一個：<a href="n136241.htm">橫河yokogawa質(zhì)量流量計在液化石油氣流量測量中的應(yīng)用</a> <br /><br /> <a href="n135943.htm">延長直線釘設(shè)轉(zhuǎn)點或交點怎么做？</a><br /> <a href="n135944.htm">武夷巖茶品茗六法</a><br /> <a href="n135945.htm">如何進(jìn)行汽車電子系統(tǒng)中的處理器選擇</a><br /> <a href="n135946.htm">蒙頓茶膏的加工技術(shù)</a><br /> <a href="n135947.htm">工作與泡茶是同一回事</a><br /> <a href="n135948.htm">鋼管拱橋主索、地錨、主塔架主要檢測項目有哪些？</a><br /> <a href="n135949.htm">海南叉蕨的栽培技術(shù)及應(yīng)用</a><br /> <a 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