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- Shift of frequency spectrum 频谱搬移
- 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. 摘要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。
- A new method of frequency spectrum analysis using Power System Blockset (PSB) is presented. 摘要给出了利用电力系统模块(PSB)工具箱对仿真波形进行频谱分析的一种新方法。
- The comparison of frequency spectrum between PZT and FBG in the focused point is taken experimentally. 实验采用直探头与光纤光栅在焦点处的频率响应进行对比。
- The DSO provides users with the functions of automatic parameters measurement, cursor measurement, analysis of frequency spectrum and multi-trigger modes. 本课题研制的数字示波器还为用户提供了自动参数测量、光标测量、频谱分析、多种触发方式选择等功能。
- In frequency field,the barycenter of frequency spectrum(FBC) of 2-6?kHz range was minimum at the "moderate full penetration". 频域分析表明,"适度熔透"状态对应的2~6 kHz段频谱重心最小。
- This algorithm firstly calculates the average power serial, and then finishes the detection of PN code rate through the analysis of frequency spectrum and smooth processing. 该算法首先计算序列的平均功率，然后对其进行谱分析并作平滑处理而完成伪码速率的判定。
- DSO covers the theories of signal pretreatment, data collection, frequency detection, automatic control, analysis of frequency spectrum and data processing. 其中涉及到信号预处理、数据采集、同步触发、测频、自动控制、数据显示和处理、频谱分析等诸多方面的理论。
- This paper mainly studies the simulation of frequency spectrum of the signal of underwater explosion about different dose detonator, and designs the underwater hang fire exploder. 本文主要是对不同炸药量水下爆炸产生的声信号频谱的模拟进行研究，并设计了水下延时起爆装置。
- Speed up establishing the back-up system for radio management technology in Beijing,improve in an overall manner management of frequency spectrum,radio signal monitoring,interference analysis and testing capability for radio equipment. 加快构筑北京市无线电管理技术支撑体系，全面提高频谱管理、无线电信号监测、干扰分析和无线电设备检测能力。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
- It determines the shift of sleep and wake. 这影响到我们睡眠和觉醒的更替。
- This paper analyzed the generation structure of DDFM signal, got the expression in time domain, then applies the modified Bessel function of first kind, then got the analytical expression of frequency spectrum based convolution in frequency domain. 本文分析了DDFM信号的发生结构,求得其时域解析式,进而引入一阶变质Bessel函数,最后通过频谱卷积的方法求得了DDFM的频谱解析式。
- There is a shift of the midline to the left. 正中线向左偏移。
- Practice shows that the application of frequency spectrum characteristics to the evaluation of IP anomalies caused by sulfide mineralized bodies (chalcopyrite) and graphite-bearing dolomitic marble is effective. 实践证明，利用频率谱定性评价硫化物矿化体（黄铜矿）与含石墨白云质大理岩激电异常源取得较佳效果。
- A filter whose transfer function is matched with the frequency spectrum function of input signal. 其传递函数与输入信号的频谱函数相匹配的一种滤波器。
- Speed up establishing the back-up system for radio management technology in Beijing, improve in an overall manner management of frequency spectrum, radio signal monitoring, interference analysis and testing capability for radio equipment. 加快构筑北京市无线电管理技术支撑体系，全面提高频谱管理、无线电信号监测、干扰分析和无线电设备检测能力。
- A new method, based on the analysis of frequency spectrum of instantaneous power, for the discrimination between internal fault currents and inrush currents in transformer is proposed. 在分析瞬时功率频谱特性的基础上,提出了一种基于瞬时功率的变压器励磁涌流和内部故障电流识别新方法。
- Discussed the DDC technology based on digital orthogonal mixing,also the design methods of NCO,the transfer of frequency spectrum,the filter and decimation technology are detailed proved. 通过对一中频信号进行基于正交混频的数字下变频的仿真试验,结果正确解调出了原始信号;
- However, for the spectra of other celestial bodies, the corresponding frequency spectrum is of multimodal and the energy of frequency spectrum is dispersible. 对于其他类型的光谱，相应的频谱具有多峰分布的特点，其频谱能量比较分散，它们在晚型星特征区间内的频谱能量非常有限。
