shift frequency的例句大全

The Continuous Phase Frequency Shift Keying ( CPFSK ) signaling scheme has been widely used in mobile applications.

连续相位频移键控 ( CPFSK ) 信号广泛应用于便携式移动通信系统.

This paper reports the theoretical study on the transmission efficiency, bandwidth and frequency shift of anomalous dispersion atomic optical filter with off axis incident beam.

本文首次对反常色散原子滤光器在斜入射（0～π/2）条件下的透过率、带宽和频移等特性进行了理论研究；

The Doppler frequency shift of individual normal mode of narrow-band pulse is analyzed.

分析了窄带脉冲声的单个简正波Doppler频移特性。

Unification of the frequency shift and pulse compression of an ultrashort laser pulse propagating in a background plasma wave is realized by employing the concept of phase modulation of the laser pulse by the plasma wave.

提出等离子体波对光脉冲产生相位调制的观点，把光脉冲在背景等离子体波中传播时的频率移动与脉宽压缩效应统一起来。

A new method computing cardiac output by pulsed Doppler frequency shift

应用超声脉冲多普勒频移图计算心排血量新方法的探讨

Compared the frequency shift of hybridized signal with shift of amplified signal.

比较直接检测杂交时频率变化值和酶系统放大后信号频率变化值。

Light shift in a new cavity-cell assembly for rubidium atomic frequency standards

一种新型铷原子频标腔泡系统的光频移研究

Light shift is one of the main factors that influence the long term stability of rubidium frequency standards.

光频移是影响铷钟长期稳定度的主要因素之一。

A new high frequency DCDC full-bridge power converter is presented, that the soft-switching, phase-shifted PWM and bi-directional DCDC converter hang together.

研究一种把软开关技术和移相PWM控制技术以及双向DC DC变换器技术有机结合在一起的新型高频DC DC开关功率全桥变换器。

The study of field source static shift in frequency domain controlled-source electromagnetic sounding with long wire source

长导线源频率域可控源电磁测深的场源静态位移研究

In order to avoid such problems as symbol sliding, phase shift of pseudorandom noise code and carrier phase offset, an improved method of frequency offset estimation is proposed.

为避免采样频率偏差给卫星导航接收机带来的符号位滑动、伪随机噪声码相位移动和载波相位偏差等问题，提出了一种改进的频率偏差估计方法。

Surface Acoustic Wave ( SAW) device responds to Changes in the mass on its Surface with a shift in frequency and is most frequently used in gas-phase sensing applications.

声表面波（SAW）器件的工作频率随基片表面上的负载质量变化而发生漂移，通常利用这一性质作气相分析与检测，已经有了若干用SAW延迟线器件制成的化学传感器。

The formulae for calculating Doppler shift for GPS signal and ionospheric total electron content ( TEC) by using dual frequency GPS Doppler observations are provided.

给出了GPS信号多普勒效应以及利用多普勒观测量计算电离层总电子含量的计算公式。

In TDD pre-equalization OFDM systems, the Doppler frequency shift would make channel time-variant, degrade system performance.

对于TDD预均衡OFDM系统，多普勒效应导致了信道的时变，并使预均衡处理产生误差，且随处理时延的增大，预均衡系数误差越大，由此影响了预均衡系统的性能。

A high accuracy and quick detection algorithm for phase and frequency of power fundamental wave based on the cyclic shift character of the base phasor

基于基相量循环移位的基波相位和频率高精度快速检测方法

However, the orthogonality of the spread-spectrum sequences would be corrupted by different attenuations over each subcarrier due to Doppler frequency shift and multi-path fading.

由于多普勒频移和多径效应，导致各个子信道的衰落不一致会破坏扩频序列的正交性。

Large fluid viscosity or low permeability ( High couple damping coefficient) make the shift to high frequencies of the main dispersion frequency range, and the attenuation coefficient knee points for the different frequency dependence, which represents the relaxation frequency movement to high frequencies.

高粘性流体和低骨架渗透率（高的固流耦合衰减系数）使得主要频散发生的频率范围，和衰减系数出现不同频率响应特征的鞍点向高频移动，这反映松弛频率向高频段移动。

When a chipped divergent atomic beam interacts with a chipped divergent laser beam in space, atoms will be excited to upper state and then emit fluorescence, if Doppler frequency shift equals the difference between the atomic transition frequency and the laser frequency.

发散的片状原子束和发散的片状激光束在空间相互作用，当多普勒频移等于原子跃迁频率和激光器频率之差时，原子被激发并在空间发光。

carrier frequency synchronization scheme of ofdm based on cyclic-shifted preamble sequences

基于循环移位前导序列的OFDM载波同步方法

the automatic fringe distinct technique in white light digit speckle image frequency recognition-digit phase shift method

白光数字散斑图像频域自动识别技术——用于逐点分析的数字相移法