chirp的例句大全

The chirp leads to the initial and final narrowing stages of pules. It is useful for optimizing the design of the system and improving compensation performance for pulse waveform distortion.

单模光纤中啁啾将导致脉冲信号产生初期窄化和末期窄化过程，这种传输特性可用来优化相位共轭系统的总体结构设计，进一步改善和提高系统的补偿性能。

It is revealed from the theoretical analysis, experimental study and computer simulation of IM/ DD optical transmission systems that, compared with MQW DFB laser, the lower total differential quantum efficiency of bulk DFB laser makes adiabatic chirp dominate its total chirp.

通过理论分析、实验和计算机模拟得到：进行直接强度调制时，体块型DFB激光器的总微分量子效率（与多量子阱DFB激光器相比）过低，从而导致其绝热啁啾占激光器啁啾的主要部分；

The Shallow Seismic Vibrator System ( SSVS) is a kind of vibration source for engineering detection and shallow seismic survey. Main fun ction of SSVS is to generate a Chirp signal with strictly controlled parameters.

轻便浅层地震可控震源是一种用于探测和浅层地震勘探的激震设备，其主要作用是根据参数输出严格控制的Chirp信号。

According to the experimental results, the distortion induced by the chirp of sampling pulse and walk-off between polarizations is analyzed.

根据实验现象，论文提出并分析了采样光脉冲啁啾与偏振光走离共同作用对量化输出结果的影响。

For a single polarization direction, the weak polarization walk-off effect influences the chirp to a certain degree, while the strong influences little;

较弱的偏振走离效应对啁啾有一定影响，较强的偏振走离效应对啁啾几乎没有影响；

The results show that the walk-off effect significantly influence the chirp when the walk-off effect is minor and the chirp tends to zero when the walk-off effect exceed the fixed value.

研究结果表明：较弱的走离效应对啁啾影响较大，当走离效应参量超过某一值时啁啾趋于零；

An analytic expression of the chirp of orthogonally polarization modes is derived based on coupled nonlinear Schrdinger equation. It is analysised that the walk-off effect of polarization modes and power budget in the fiber influences the chirp.

利用耦合非线性薛定谔方程推导出两垂直偏振耦合模产生啁啾的表达式，分析了偏振模走离效应和入纤功率分配对啁啾的影响。

Low chirp of femtosecond laser pulses can be determined accurately using the MOSAIC.

MOSAIC能够精确地测量飞秒激光脉冲的微小啁啾量。

ISAR Range Profile Compensation of Fast-moving Target Using Modified Discrete Chirp-Fourier Transform

基于修正离散Chirp-Fourier变换的高速目标ISAR距离像补偿

With the development of related technology, the chirp based UWB systems are not only used for accurate position location and vehicle radar systems, but also applied for spread spectrum communication.

随着技术的发展，目前Chirp超宽带信号不仅被应用到了精确测距和车载雷达，而且还被应用于扩频通信中。

To chirp or twitter, as a bird.

以啁啾声著名的鸟类。

Birds had begun to chirp and twitter among the trees.

鸟儿开始在树丛中啁啾鸣啭.

Chirp Induced by Self-phase Modulation in Non-Kerr-like Optical Fibers with Saturable Nonlinearity

具有饱和非线性的非克尔光纤中自相位调制效应所致啁啾

Self-phase modulation in chirped-pulse amplification

啁啾脉冲激光放大中的自相位调制效应

Based on self-phase modulation and group velocity dispersion, we analyzed the wave shape and pulse chirp of the optical pulse in OTDM.

本文依据自相位调制效应和群速度效应对光时分复用系统中光脉冲的波形和啁啾特性进行了分析。

Conclusion The OFDM signals with a generalized chirp-like sequence ( P4), a generalized poly-phase barker sequence and a poly-phase Golomb sequence exhibit thumbtack ambiguity function, their peak-to-average power ratios can be maintained below 2, which are the optimal signals for OFDM multi-carrier TDD.

结论子载波上发送相位编码序列为广义类chirp序列（P4码）、广义多相巴克码的正交频分复用多载波信号具有图钉形的模糊函数，峰均比PAPR

This thesis focuses on the phase coherent UWA communication techniques. Phase Coherent Frequency-hopped Waveform Synthesis by Using the SAW Chirp Transform

本文对相位相干通信技术在水声信道中的应用进行了深入的研究。SAW Chirp变换综合相干捷变频信号

A new spatial polarimetric t-f ( SPTF) distribution was presented based evolutionary periodogram of chirp signals of time-varying amplitude.

同时，基于时变幅度Chirp信号的空间演化谱，提出了一种新的空间极化时频分布，用此空间极化时频矩阵代替自相关矩阵估计信号子空间和噪声子空间。

The gain clamping character of LOA was simulated. The extinction ratio, chirp and eye opening ratio of converted signal were calculated for different power and rate of input signal.

仿真了LOA的增益钳制特性，模拟计算了信号光功率和速率对转换后信号的消光比、啁啾和眼图张开度的影响。

Based on the equations of Maxwell, we get the theoretic model for the amplification of the broadband-chirped pulse.

从麦克斯韦方程组出发，推导了宽带啁啾脉冲放大的理论模型方程。