pulse envelope中文什么意思

例句与用法

1. With the development of few - cycle pulses ( fcp ) , the phase shift of the optical carrier with respect to the pulse envelope becomes non - negligible
   随着周期量级激光脉冲的产生，脉冲载波及包络之间的相对相位漂移逐渐成为不容忽视的问题。
2. As compared with the solution using pulse envelope representation , the propagation equation using complex analytic signal representation reveals different spatiotemporal behaviors such as spectrum redshifting , narrowing , and pulse broadening , etc . 2
   复解析信号解会出现光谱红移、变窄、脉冲变宽等与脉冲包络解不同的时空特性。
3. The method can measure the following parameters , ( pulse attitude ) pa , ( pulse width ) pw , ( time of approach ) toa , snr , ( radio frequency ) rf , pulse envelope characteristic parameters and intra - pulse modulation parameters with a high precision and a high discrimination
   该算法能够分析雷达信号的脉冲脉幅、脉宽、到达时间、信噪比、载频、脉冲包络特征参数和脉内调制特征参数。
4. Calculations indicate that the carrier phase takes effect till the time width of the pulse envelope becomes smaller than the period of the carrier oscillation , and the interpretation of this phenomenon is also presented . it is the difference between phase delay and group delay that causes the sliding between the carrier and the envelope
   数值分析的结果表明，当脉宽小于光波周期时，相位的作用开始显现出来，当脉宽比光波周期长时，载波相位的作用可以忽略，并分析了相位起作用的原因，用解析的方法说明正是相延迟和群延迟之间的差别造成了光载波在脉冲包络下的滑动。
5. Shapes of pulse envelope are found to have some effect on the degree of phase influences . dependence of single - cycle pulse ( scp ) energy on the carrier phase has been studied for gaussian , lorentzian , hyperbolic secant and sine shapes respectively , which shows that these energies can be expressed in the same form . phase effect on pulse with gaussian envelope is the first to show , then are hyperbolic secant and lorentzian pulses , and sine the last
   包络对载波相位的作用范围也是有一定影响的，我们对高斯、洛仑兹、双曲正割和sinc四种不同包络的脉冲，研究了单周期脉冲能量随载波相位的变化规律，发现以上四种脉冲的归一化能量均可在形式上用同一表达式表示，并发现对于这四种不同包络的脉冲，高斯脉冲相位的作用最早体现出来，然后是双曲正割和洛仑兹脉冲， sinc脉冲最迟。