设置保护区域(Guard bands) 选项 >General 在动态走线的时候，PADS Router 能够实时的显示所有对象的间距保护区域， 在走线过程中可以很好的避免违反走线规...
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When UHF broadcasting came along, empty “guard bands” were added to each channel for the same reason.
而当超高频广播出现时，每个频道基于同样的理由，也加上了空闲的“保护频带”。
When UHF broadcasting came along, empty "guard bands" were added to each channel for the same reason.
而当超高频广播出现时，每个频道基于同样的理由，也加上了空闲的“保护频带”。
To overcome the leakage of CIR, the frequency guard bands are reduced by using the polynomial cancellation coding(PCC) training symbols.
使用多项式相消编码（PCC）训练符号进行信道估计，利用其频谱陡降的特点减少保护边带宽度，进而降低CIR泄漏。
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