| 释义 |
1 [电子]?正调制 Positive Modulation(正调制), 此释义来源于网络辞典。 2 ?正极性灯 ... 正极性脉冲 positive pulse 正极性灯 positive modulation 直流正极性 DCSP ; DCEN ... 3 ?正极性调制 ... angle modulation 调角,相角灯,角调制... positive modulation 正极性调制,正极性灯... compound modulation 多重调制 ... 4 ?正调变 ...,-) 则表示正(负)的频率域系數以正(负) 的浮水印值改变，嵌入后会使的系數之绝对值变大，称之为正调变(PM，positive modulation)。
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But for the influence of self phase modulation, the ISI limited distance of positive dispersion is much longer than that of negative dispersion. 但是，由于非线性自相位调制效应的影响，在其它参数相同条件下，正色散时的ISI限制距离比负色散时要长得多。 - 2
The frequency modulation effects of positive dipole (unipole) forcing source on LFO is stronger than negative dipole (unipole), and the wave oscillation quicken evidently. 正偶(单)极强迫源对大气低频振荡的调制作用强于负偶(单)极，波动振荡明显加快。 - 3
The results show that, in case of high-order dispersion, the positive and negative quintic nonlinearity also intensifies and weakens the cross-phase modulation instability, respectively. 研究表明，在高阶色散下，正负五阶非线性的存在仍然分别对交叉相位调制不稳定性起加强和削弱的作用；
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