查询词典 convergence frequency

According to the method, model dimension is contracted to five by the way of selecting the unit in which amount of I/K is m inimal. Then sensitivity of frequency to stiffness is calculated. After the diff erence between measured frequency and calculated frequency have been got, the ad justed amount of stiffness is calculated by the using of the sensitivity and the frequency difference.

该方法按照I/K最小优先合并原则，将轴系模型自由度数缩聚为5，分析该模型4个刚度对前4阶频率的敏感度，算出实测的前4阶频率和模型计算频率之间的差值，利用敏感度和频率差值计算出刚度的调整量。

In shoaling process, the main peak frequency of broken wave spectra moves to lower frequency. With decreasing relative water depth, both the ratios of wave spectral energy at twice and triple peak frequency to main peak frequency increase. and when the value of the nonlinear parameter increases, both the ratios increase, too. The Stokes third order wave theory has the same tend but overestimates the value quantitatively.

波浪浅化时，碎波后主频频率有往低频移动之现象，且波浪进入浅水区，相对水深减小，非线性参数Ursell number越大时，二倍主频及三倍主频与一倍主频能量比值均有增加之现象，与 Stokes三阶理论有相同之趋势，但实验之比值在定量上小於Stokes三阶理论值。

Namely in high-frequency unit use gradually incisive time resolution and lower frequency resolution, in order to moves the near observation signal quickly to change the part; In low frequency partially has the higher frequency resolution and the lower time resolution, in order to moves the far observation signal slowly to change partially, the wavelet this kind of signal analysing expression characteristic to analyzes the non- steady signal is extremely effective, suits the transient state anomaly very much which smuggles in the survey normal signal and demonstrates its ingredient, therefore by reputation for analysis signal microscope.

即在高频部分使用逐渐尖锐的时间分辨率和较低的频率分辨率，以便移近观察信号的快变部分；在低频部分具有较高的频率分辨率和较低的时间分辨率，以便移远观察信号的慢变部分，小波这种信号分析表示特征对分析非平稳信号是非常有效的，很适合于探测正常信号中夹带的瞬态反常现象并且展示其成分，所以被誉为分析信号的显微镜。

By locking laser frequency to atomic absorption spectrum through current negative feedback and locking microwave frequency to electromagnetic induced transparency resonance peak through voltage negative feedback, it is realized to lock the clock frequency of this laboratorial desktop experimental CPT frequency standard.

通过采用电流负反馈将激光频率锁定在原子对激光的吸收峰上，电压负反馈将微波频率锁定在电磁感应透明共振峰上，用该物理系统实现了闭环锁定的实验室桌面CPT频标实验系统。

By locking laser frequency to atomic absorption spectrum through current negative feedback and locking microwave frequency to electromagnetic induced transparency resonance peak through voltage negative feedback respectively, the locking of the clock frequency of this laboratorial desktop experimental CPT frequency standard is realized.

介绍了相干布居囚禁原子频标的小型、低功耗物理系统，并应用它开展实现了CPT原子频标的激光锁定、微波锁定方案的实验室研究。通过采用电流负反馈将激光频率锁定在原子对激光的吸收峰上，电压负反馈将微波频率锁定在电磁感应透明共振峰上，用该物理系统实现了闭环锁定的实验室桌面CPT频标实验系统。

With the development of semiconductor devices, the switching frequency of PWM converters becomes higher, which makes PWM converters (mainly high-frequency transformers, inductors and capacitors in converters) smaller, and this will benefit design and application of them. Whats more, higher switching frequency will reduce the audio-frequency noise and improve dynamic response of PWM converters.

随着半导体器件技术的不断发展，PWM变换器所能达到的开关工作频率越来越高，使得变换器(主要是变换器中的高频变压器、电感等磁性元件和电容)的体积和重量越来越小，这有利于PWM变换器的设计及推广应用。

RIT control. The receiver incremental Tuning control is used to fine tune to the received singal . This is used in USB and LSB modes to obtain maximum clarity of reception, and in CW mode to control the pitch of the beat note. The RIT Control can tune the receive frequency about 2.3 KHz. This control will not transmit frequency, or the frequency display, but will change the receive frequency.

RIT control ：收信机微调旋钮是用微调调整使你能收到被认为是标准的信号，在USB和LSB模式使用可以获得最清晰的接收，在CW模式可以控制节拍的音调，这个旋钮能在2.3KHz左右调整接收频率，它不影响发射频率和显示频率，但将改变接收频率。

RIT control. The receiver incremental Tuning control is used to fine tune to the received singal .This is used in USB and LSB modes to obtain maximum clarity of reception,and in CW mode to control the pitch of the beat note. The RIT Control can tune the receive frequency about 2.3 KHz. This control will not transmit frequency, or the frequency display, but will change the receive frequency.

RIT control ：收信机微调旋钮是用微调调整使你能收到被认为是标准的信号，在USB和LSB模式使用可以获得最清晰的接收，在CW模式可以控制节拍的音调，这个RIT控制可把接收的频率调整约2.3KHz左右，它不影响发射频率和显示频率，但将改变接收频率。

The method includes acquiring with the frequency meter the tested clock signal and measuring its frequency; sending the tested frequency value to the data acquisition and processing module for calculation and processing regularly; and processing the frequency data comprehensively in the data processing output module and displaying output figure and historical data.

所述的方法包括：首先，频率计采集待测时钟信号，并测试其频率值；然后，频率计定时将测试得到的待测时钟信号的频率值发送给数据采集处理模块进行计算处理；最后，数据输出处理模块对接收数据采集处理模块处理后的频率数据进行综合处理，并将获取的图形数据和历史数据显示输出。

The proposed algorithm can deal with Carrier Frequency Offset and Sampling Frequency Offset estimation with the presence of frequency dependent In-phase and Quadrature-phased imbalance. Then frequency dependent I/Q imbalance and channel response are jointly estimated.

该联合估计算法能在存在频率相关性I/Q失配的情形下准确获得载波频率偏差和采样频率偏差的估计，并获得频率相关性I/Q失配和信道冲击响应的联合估计信息。

Kosmo is born out of the groundswell global interest in taking good care of our bodies and souls.

今天，Kosmo已经是一个不断成长的健康行业先锋，起源于纽约，在亚太区发展并最终走向全世界。

The experimental results are summarized as follows: the tensile strengh and bending strengh of steel fiber reinforced lightweight aggregate concrete can be improved significantly by the addition of steel fiber; to some extent ,the addition of steel fiber can also increase the compressive strength ,although little , it radically improves the compressive toughness , and the steel fiber reinforced lightweight aggregate concrete will not fall apart with cracks; with the increase of the volume fraction of steel fiber, the elastic modulus is also rising somewhat; Poisson's ratio is influenced little with the addition of the steel fiber and the effect regularity displays unconspicuously.

本文试验研究结果可归纳如下：钢纤维的加入能明显提高钢纤维轻骨料混凝土的抗拉强度和抗折强度；掺入钢纤维使钢纤维轻骨料混凝土的抗压强度有一定程度的提高，增长幅度不大，但抗压韧性却有很大改善，使钢纤维轻骨料混凝土裂而不散；钢纤维轻骨料混凝土的弹性模量随钢纤维体积率的增大有一定提高；泊松比受钢纤维的加入影响不大，规律性不明显。