the dissertation includes an analysis of the influence of phase modulation parameter, group velocity mismatch and the wave-length of incident wave on the waveforms of frequency doubled pulses; shows the influence of the chirp of fundamental wave on shg conversion.

  • 论文分析了相位调制参量,群速度失配量及入射波波长对倍频脉冲波形的影响;研究了基波啁啾对倍频转换的影响。
  • 来源:互联网摘选更新时间:2026-07-13 15:04:10

  • 重点词汇
  • andconj. 和;与;而且;于是;然后
  • dissertationn. 专题论文,学位论文;学术演讲;
  • ofprep. 关于;属于…的;由…制成;
  • theart.这个;指已提到或易领会到的人或事物;指独一无二的、正常的或不言而喻的人或事物;用以泛指;与形容词连用,指事物或统称的人;用于姓氏的复数形式前,指家庭或夫妇;(指特定用途的事物)足够,恰好;每,一;当前的,本,此;(重读,表示所指的为知名或重要的人或事物)
  • chirpvi.鸟叫,虫鸣;
  • SHG二次谐波发生;倍频;
  • pulsesn.脉搏( pulse的名词复数 );[无线电](电磁波等)脉动;活力;有节奏的跳动(或拍打);
  • wave on挥手示意…前进
  • 相关例句
1、

it is shown that the r in free space increases with increasing the phase fluctuation parameter, the intensity modulation parameter and the truncated parameter. but the influence of turbulence on the r also increases with increasing the three parameters.

研究表明,在自由空间中,位相畸变参量、振幅调制参量和光束截断参量越大,R越大,但其R受湍流的影响也会越大。

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2、

therefore, based on the wavelet analysis is applied in communication signals analysis, multi-resolution analytic characteristic, modulation parameter estimation and modulation classification of digital modulation signals is studied in the master thesis.

因此,本文将小波分析方法应用于通信信号分析,开展了数字调制信号的多分辨率特征分析,调制参数估计和调制模式识别的研究。

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3、

in the experiments, in order to obtain the best modulation parameter, several multi-mode ld ( mld) modulation methods and optical fiber interference characteristics under corresponding conditions are investigated.

在实验中,选用不同的电流波形调制,研究了相应条件下的光纤干涉特性,并找到了最佳的调制参数。

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4、

the carrier frequency have to be estimated to fix on scale's range of the wavelet transform on studying on modulation parameter estimation of mpsk signals in advance.

针对MPSK信号调制参数估计,首先进行信号载波频率预估计以确定信号小波变换的尺度范围中心。

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6、

a flat-topped beam can be achieved by a suitable choice of the transform order for the cosine-gaussian beams with the modulation parameter.

对给定调制参数的余弦-高斯光束,通过适当选取分数傅里叶变化阶数可以获得平顶的光强分布。

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7、

the optimum modulation parameter of the reference beam was founded in order to farthest eliminate the influence of the "background" and dispersion noise.

在一个参考光调制周期CCD光探测器每1/4周期记录一帧共四帧干涉图像.以最大限度剔除各种背景和散射噪声为目标获得了最优的参考光信号调制参数。

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8、

the model of bayesian estimation is studied for estimating the modulation parameter of lfm signal and the frequency of sine signal.

推导了一种线性调频信号参数的贝叶斯估计模型,并将其推广到正弦信号载频的贝叶斯估计中。

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9、

regarding frequency modulated continuous wave signal, the spectral analysis of instantaneous frequency is used to extract modulation parameter.

对于调频连续波信号,对其瞬时频率进行频谱分析来提取调制参数。

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10、

modulation parameter estimation based on cyclic spectrum of mpsk

基于循环谱的相位编码信号调制参数估计

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11、

lastly the measurement range of system is restricted by the modulation parameter.

利用此原理构建的系统测量的目标角振动振幅有一定的范围,测量上限受限于相位调制因子。

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12、

the results are analyzed and compared. the effect of modulation parameter α is discussed.

比较和分析了计算结果,并对调制参数的影响进行了讨论。

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13、

And joints and muscles are as much as 20% more flexible in the evening, lowering the risk of injury, Dr. Smolensky says.

斯莫伦斯基博士说,关节和肌肉在晚间的灵活度比其它时候高20%,受伤的几率会少一些。Getty Images扔飞盘也是一样。

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14、

class a push-pull sound track

类推挽式声道

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15、

application of the mathematical model of the funnel in precipitation rain fall sensors

漏斗数学模型在雨量传感器中的应用

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16、

other business expense to be transferred

待转其他业务支出:

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17、

Spend More Time Outside We come up with our best ideas not in offices, but while we take walks, go out on the lake for sales board meetings, and play ultimate Frisbee.

最好的点子不是产生在办公室里,而是在我们散步、在湖边举行销售会议和玩极限飞盘时出现。

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18、

Currently only in some more developed city has ultimate frisbee sports team.

目前只在部分较发达的城市拥有极限飞盘运动队伍。

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19、

We also bring in professional coaches for various sports, such as golf, tennis and ultimate frisbee.

我们还请来各类运动的专业教练,如高尔夫、网球和极限飞盘。

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20、

Ultimate is played between two teams of seven players on a large rectangular pitch.

极限飞盘是在一种在大型的长方形草地上举行的七对七的比赛。

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