pulse n. 1.脉搏;有节奏的跳动;【动物;动物学】脉冲(波);脉动。 2.意向;倾向。 3.【音乐】拍子,律动。 His pulse was at a hundred. 他的脉搏(每分钟)一百次。 a galloping pulse 急脉。 a high pulse 强脉。 a long [ slow ] pulse 缓脉。 a weak pulse 弱脉。 an action pulse (火箭)触发脉冲。 a carry pulse 进位脉冲。 a driving pulse 起动脉冲。 feel sb.'s pulse =have one's fingers on the pulse of sb. 按某人的脉;探某人的意向。 stir sb.'s pulses 鼓动某人的情绪;使人兴奋。 with quickened pulses 心跳得更快地。 vi. 脉跳动;震动;脉动。 vt. 使发生脉冲;用脉冲输送(血等) (in out)。 n. 〔sing., pl. 〕 豆类;豆。
Any process that will compensate for such distortions of the initial pulse should improve reflection quality . 任何补偿这类初始脉冲畸变的处理,都能改善反射波的质量。
Initial pulse width 始波宽度
When parameters of the initial pulse vary , the phenomenon of the splitting is difference , and the physical mechanism is discussed 对于初始非线性啁啾脉冲,初始入射脉冲的啁啾参数不同时,产生分裂的现象也不同,并讨论了其物理机制。
Numerical examples illustrated the spatiotemporal properties such as spectrum redshifting , narrowing and pulse distortion , etc . it is stressed that the " antibeam " behavior of ultrashort pulsed beams can be avoided , if a suitable truncation function is introduced to the initial pulse spectrum 数值计算例说明了在色散介质中会出现谱红移、变窄、及脉冲形变等传输效应,而且对初始光谱引入截断函数可以避免“非光束”行为。
Abstract : analyzes the performance of unipolar ocdma system using optical orthogonal code ( ooc ) considering the dispersion and nonlinearity effect of the transmission medium . theoretical analysis demonstrates that dispersion and nonlinearity effect deteriorate the system performance . the performance of ocdma system assuming dispersion - shifted fiber as transmission medium is very close to the case neglecting the dispersion and nonlinearity effect . assuming rz initial pulse and optical hard limiter are also possible solutions 文摘:分析了基于光正交码( ooc )的光码分多址系统的性能.数值结果表明:与以前忽略光纤信道对系统性能的情况相比,在考虑了光纤的色散和非线性效应以后,系统性能有了明显的下降.给出了一些建议方案来遏制由色散和非线性效应引起的系统性能恶化