frequency difference
英 [ˈfriːkwənsi ˈdɪfrəns]
美 [ˈfriːkwənsi ˈdɪfrəns]
频差
双语例句
- Effection of the Peak Latency and Amplitude of Normal Group s Mismatch Negativity Change in Frequency Difference and Intensity Difference; Load Factor The load factor is the ratio of the average load to the generator set power rating.
频率和强度的偏差程度对正常人错配负反应的影响负荷系数负荷系数指的是机组的平均负荷与额定功率之间的比率。 - Secondly, the Frequency Difference of Arrival ( FDOA) Location System has b.
接着，本文还就到达频差定位系统进行了研究。 - A new method for joint estimation of time difference of arrival ( TDOA) and frequency difference of arrival ( FDOA) is proposed.
提出了一种新的二阶到达时差（TDOA）和到达频差（FDOA）联合估计算法。 - Power cable fault locating based on frequency difference characters of wavelet analysis
基于小波分析频差性的电力电缆故障测距 - It can obtain mistuned frequency difference of blades by a modal test, and then get the mistuned parameters.
本文通过叶片模态试验获得叶片失谐频差，进而获得叶片失谐参数。 - The results also show that smaller frequency difference and random mistuning distribution of blades are eligible, and also give the rational range of rotating frequencies of an engine.
并就算例给出了最佳频差幅值和恰当的发动机工作频率范围。 - Software and hardware design of the analysis of frequency difference and frequency adjustment.
频差分析和频率调整的软、硬件设计调试。 - The dynamic load flow with frequency difference, the basic equations of voltage and current of IPC, and the tracking equivalent technology of network are combined for a special mathematical model to break through the technical difficulty.
建立了研究这一特殊问题的数学模型，该模型将计及两侧频率差异的动态潮流、IPC电压电流基本方程与电网跟踪等值技术三者适当地结合，为突破技术难点铺平道路。 - The algorithm based on second-order cumulant and high-order cumulant for joint estimation of time difference of arrival and frequency difference of arrival ( TDOA/ FDOA) in passive location are presented.
介绍了无源定位中二阶累积量和高阶累积量的时差频差联合估计（TDOA/FDOA）算法。 - The author presents a method of calculating the error of location and analyses the relationship between the error of location and the frequency difference of double-frequency grating ( or the amount of shear) and F number of the system.
文中提出了计算定焦误差的方法，分析了定焦误差与双频光栅的频率差（或剪切量）及系统的F数之间的关系。 - The Competition between Two-Photon Resonance Four Wave Frequency Difference and Sum Mixings
波差导数；四波混频过程中差频与和频的竞争研究 - Rise Time Measurement System of Steep Pulse Based on Frequency Difference Multiply Technology
基于频差倍增技术的陡脉冲上升时间测量系统 - The algorithm solves the question of frequency difference between uplink and downlink.
解决了上、下行链路的频差问题。 - The heterodyne detection is used to detect the output signal frequency difference between the reference arm and sensing arm, which is caused by the temperature variation.
外差探测用来探测传感臂和参考臂由于温度变化引起的输出信号的频率差异。 - According to the relationship between height of cavity, property of filling material and signal frequency, a frequency difference prediction and analysis technology is developed on the basis of wave equation.
根据溶洞高度及填充物性质与信号频率之间的关系，研究开发了一种以波动方程为基础的频率差异分析预测技术。 - An automatic balancing head is introduced, in which a PM frequency difference motor is used.
设计了使用永磁频差电动机的自动平衡头。 - The new Approaches are presented for measuring aging rate of internal Oven Controlled Crystal Oscillator ( OCXO) in digital communication measurement instruments without Frequency Difference ( Multiplicator), and the aging rate calculating formula is given.
介绍了不使用频差倍增器测量数字通信仪器内部高稳时基日老化率的测试方法&频率合成器倍频法和示波器同步法，并给出了日老化率指标的计算公式。 - The time frequency difference between grain noise and defect signal provide a possibility for enhancement of signal-to-noise ratio ( SNR) in ultrasonic testing.
晶粒噪声和缺陷信号的时频特征的差异，为提高超声检测的信噪比提供了可能。 - Second stage is the analysis of frequency difference, which calculates the carrire frequencies difference between adjacent signal intervals;
第二阶段是频差分析，计算出相邻跳段之间的载频偏差； - Based on the qualitative and quantitative analysis of system principle, a control method that is frequency difference control is derived.
在对系统工作原理定性及定量分析的基础上，推导出系统的控制方法&频差控制。 - The ratio of frequency difference square is provided to determine crack damage location.
将激振试验结果用频率变化平方比法来进行裂缝损伤位置检测，找到了裂缝损伤的位置。 - The low orbit dual-satellites passive location method for electronic reconnaissance using TDOA ( time difference of arrival) and FDOA ( frequency difference of arrival) was studied and presented which locates ground emitter from space satellites.
针对空间电子侦察卫星对地面固定辐射源进行无源定位的问题，研究并提出了一种通过低轨双星联合利用到达时间差（TDOA）和到达频率差（FDOA）无源定位的解析计算方法。 - First, the scheme of the phase noise measurement is briefly introduced and the phase demodulation method is used in this system. And then the digital design technique of the loop filter and the frequency difference elimination algorithm are introduced in detail.
首先简要介绍了鉴相法测试相位噪声系统的实现方案，然后重点介绍了鉴相法中环路滤波器的数字实现技术和相位噪声提取算法。 - The relation between the lock-in frequency difference and discharge current is analyzed through experiment. The frequency difference stability of the laser is tested and estimated.
通过实验研究了激光器的频差闭锁现象和闭锁阈值与放电电流之间的关系，并对其进行了理论分析。 - The system is with ability of self-calibration. ( 2) In-depth analysis of errors of dual frequency laser with large frequency difference based tip clearance measurement system is completed to establish the theoretical error model and influencing mechanism.
深入分析了基于大频差双频激光的叶尖间隙测量系统的误差源并经理论推导建立了误差模型和影响机制。 - Because of the frequency oscillator between transmitting and receiving ends of inconsistencies caused instability will greatly affect the performance of the system, in the same manner, the frequency difference is also referred to such a carrier frequency deviation.
而由于发送端和接收端之间的晶振不稳定性所造成的频率不一致也会很大程度地影响系统的性能，同样地，这类频率差异也被称为载波频率偏差。 - In the wireless communication system, the frequency offset always exists between carrier frequency and local reference, caused by the frequency difference between transmitter and receiver and impact of the Doppler shift.
在无线通信系统中，由于发送设备和接收设备间的频差，以及客户端设备移动所带来的多谱勒频移等影响，使得载波频率与本地的频率之间存在着频率偏移。 - In this case, the distance and/ or the Doppler frequency difference between the true target and mirror target can be used to calculate the target height.
在这种情况下，可以利用真实目标和镜像目标的距离或真实目标和镜像目标运动所产生的多普勒频差得到目标的高度。 - Improved algorithm combines isotropic and anisotropic diffusion and uses the regional frequency difference to realize different iterative equation on the different regional.
改进的算法同时结合了各向同性和各向异性扩散，利用区域频率差异实现了在不同的区域使用不同的迭代方程。 - The influence of the frequency difference and the phase difference has been studied in the Duffing chaos system for analyzed weak signal. Under the strong noise background, the sine signal examination result on the Duffing chaos system has been analyzed.
研究了频差和相位差对Duffing混沌系统检测微弱信号的影响，对白噪声背景下Duffing混沌系统对正弦信号的检测结果进行分析。