基本上，除了每个文件中的每个词语的出现频率，还必须收集每个文件中词语出现的偏移列表。
Basically, along with the number of occurrences of each word in each file, we would have to collect, for each file, a list of offsets where the word occurs.
考虑到短波信道频率偏移的不确定性提出了相关搜索、FFT捕获的信号捕获方案。
Considering the uncertainty of frequency excursion, the scheme of signal capturing of correlate searching, FFT capturing is bring forward.
但两者都对载波频率偏移敏感，且在AWGN和多普勒频移环境下表现相当。
But both of them are sensitive to carrier frequency shift, further, they have comparative BER under AWGN and Doppler shift environment.
本文介绍了时钟网络中抖动、相位噪声、偏移、频率稳定度等参数的概念以及它们之间的转换关系。
The paper introduce the concepts of timing parameters, including: jitter, phase noise, skew, frequency stabilization, and the relationship between them.
当信号从原中心频率偏移，信号越来越从设定的发射通道偏移，功率分析仪的功率电平会越来越低。
As the signal is shifted from the original center frequency, the RF power analyzer reads lower and lower power levels as more and more of the signal shifts out of the intended transmission channel.
OFDM系统存在对数据符号同步和载波频率偏移极为敏感的问题。
The OFDM is sensitive to the synchronization of the OFDM symbol and the carriers' frequency excursion.
载波频率偏移是OFDM系统实现的关键问题之一。
Carrier frequency offset is one of the key problems in OFDM system.
工厂检验芯偏移以及壁厚的频率？
What is the foundry's checking frequency for control of core shift and wall thickness?
但是OFDM技术对频率偏移和相位噪声很敏感，所以同步是OFDM系统中的关键问题。
But OFDM is very sensitive to frequency offset and phase noise, so synchronization is the key problem for OFDM system.
最后给出了跳频通信发信机、接收机以及干扰机成员的仿真模型，分析了频率偏移对多频连续波干扰性能的影响。
Finally, simulation models of FH transmitter, receiver and jammer are presented. The influence of frequency excursion on performance of multi-tone continuous wave jamming is analyzed.
对于多载波系统，载波频率的偏移会导致子信道之间产生干扰。
The offset of carrier frequency can cause interference between subchannels in a multicarrier system.
该算法利用连续两次同步过程中所记录的时间信息来估算节点时钟的偏移和频率漂移率，并进行补偿。
The clock offset and frequency drift rate for sensor nodes are estimated and then compensated by using the time-stamp recorded in two adjacent synchronizations.
雷达测速仪是利用多普勒测速原理，获得运动目标的频率偏移信号。
Police traffic radar USES the theory of Doppler speed detection to measure the offset of the frequency.
从相关函数的基本原理出发，分析了频率偏移对信号测量准确度的影响。
According to the fundamental principle of correlation function, the effect of measuring accuracy resulting from frequency deviation is analyzed in this paper.
方案利用时频联合估计来得到可靠的信号检测，并从导频符号估计时间和频率偏移。
Based on joint time and frequency offset estimation, a reliable signal detection scheme is obtained by modulated pilot symbols using an m-sequence.
在卫星导航定位系统中，多普勒频率偏移是影响接收机性能的关键因素之一。
In the satellite navigation and positioning system, Doppler shift is one of the key problems that may degrade the performance of the satellite receiver.
但OFDM技术对定时和频率偏移敏感，如何克服这个缺点是OFDM技术研究的主要方向之一。
However, OFDM is sensitive to timing and frequency offset, so how to overcome this limitation is one of the main directions of the research on OFDM.
基于连续OFDM符号上的导频子载波，给出了联合频率偏移纠正和信道估计方法。
In this paper, the pilot subcarriers on two consecutive OFDM symbols are utilized for joint frequency offset correction and channel estimation.
利用多极子阵列声波测井资料提取直达斯通利波、计算斯通利波中心频率偏移和时间延迟来进行地层渗透率反演的方法已被研究了多年。
In this paper, developed are a method and correspondent software for calculating formation permeability from the center frequency shift and travel time delay in direct Stoneley wave.
要分析电网的暂态特性，还必须考虑衰减直流分量和衰减正弦波，以及电压缺口和频率偏移等问题。
Such problems as the attenuation of DC elements and Sine waveform, voltage sag and frequency deviation should be taken into account in order to analyze the transient process in the power system.
基于该模型，分析了激光器振荡频率偏移与输出功率变化特性。
The characteristics of oscillation frequency shift and output power changes of the laser diode are analyzed by using the theoretical model.
多普勒不仅造成宽带水声通信信号的载波频率偏移，而且引起码元符号的展宽或压缩。
Doppler effect causes not only carrier frequency offset, but also symbol expansion or compression for wideband acoustic communication signal.
如何在系统频率偏移时准确的得到基波及各次谐波的幅值和相角就成为一个重要问题。
So how to calculate amplitude and phase of the fundamental and harmonics accurately when the system frequency has an offset is an important issue.
基于共振声谱法，研究了同轴孔隙性圆柱扰动体引起圆柱谐振腔共振频率的偏移。
In this paper, the problem of the acoustic resonant frequency shift of a cylindrical cavity with a coaxial porous sample is discussed on the basis of the resonance acoustic spectroscopy.
正交频分复用(OFDM)通信系统对频率偏移比较敏感，容易导致系统性能急剧下降。
OFDM (Orthogonal frequency Division Multiplexing) systems are sensitive to frequency offset, which will degenerate the system performance.
通过对地面卫星信号覆盖区内的多普勒频率偏移及不确定性范围的计算，给出了卫星导航系统信号的多普勒频率偏移与接收机位置之间的关系。
By calculating the Doppler shift and its uncertainty in the signal covering area, the relation between Doppler shift and the position of the receiver is obtained.
直流侧电流扰动反映到交流定子侧，也将发生频率偏移。
And the resulted AC current on the DC side will have the similar frequency shift when transfers to the stator of the generator.
如果有人通过，由运动人体返回的超声信号会因为多普勒效应而产生频率偏移。
Once someone passes, based on the Doppler effect, the frequency of the signals reflected by the moving body is different from the signals transmitted.
通过对不同的工况下同一噪声传递路径的测量分析，发现了传递函数的峰值存在频率偏移。
Meanwhile, in different working condition, the measuring of the same noise transfer path gives results that have minor offset of peak values positions between each test.
通过对不同的工况下同一噪声传递路径的测量分析，发现了传递函数的峰值存在频率偏移。
Meanwhile, in different working condition, the measuring of the same noise transfer path gives results that have minor offset of peak values positions between each test.
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