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注册:2007-3-8
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发表于 2007-3-8 14:14:00 |只看该作者 |倒序浏览
<p><span class="javascript" id="text634781">各位有谁研究过IUT-v.27协议,里面关于扰码器有这么一句话,“A self-synchronizing scrambler/descrambler having rhe generating polynomial: 1+x^-6+ x^-7 with additional guards against repeating patterns of 1,2,3,4,6,8,9 and 12 bits, shall be included in this modem.” 这句话是什么意思啊?<br/>谢谢各位!<br/>示意图如下: </span></p><p><span class="javascript"><img alt="" src="http://bbs.cnii.com.cn/attachments/32900942_q9BfRcwe3NT6.jpg" width="806" border="0" resized="resized" pop="点击在新窗口查看全图
CTRL+鼠标滚轮放大或缩小" style="CURSOR: hand;"/>&nbsp;</span></p>
[此贴子已经被作者于2007-3-8 14:14:43编辑过]

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