1) frequency shift
主频偏移
1.
Inversion of attention coefficient based on frequency shift;
基于主频偏移反演地层的吸收系数
2) active frequency drift(AFD)
主动频率偏移(AFD)
1.
On the basis of traditional active frequency drift(AFD) method,an improved islanding detection method is presented adopting the pulse current amplitude disturbance.
在分析传统的主动频率偏移(AFD)法基础上,提出一种适时施加脉冲式电流幅值干扰的组合式改进方法,重点讨论幅值干扰施加的方式,特别是施加时间的选取。
3) Frequency deviation
频率偏移
1.
According to the fundamental principle of correlation function,the effe ct of measuring accuracy resulting from frequency deviation is analyzed in this paper.
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。
2.
On the basis of high precision requirement for input signals in the power system protection and control system,this paper,only for the influence of power system frequency deviation on extracting fundamental harmonic,studies the amplitude error of Fourier algorithm,presents a method of correcting frequency deviation,and further derives the formulas of improved Fourier algorithm.
针对电力系统微机保护和控制系统对输入信号精度的要求 ,研究了电力系统频率偏移对傅立叶算法的影响 ,提出一种消弱频率偏移影响的方法 ,并推导出校正频率偏移的改进傅立叶算法 。
3.
As for digital self excited control system for use with synchronous generator, this paper analyses the influence of power system frequency deviation on automatic excitation regulator, derives the rule of voltage error varying while system frequency deviates from normal rating and presents a kind of correcting method.
本文针对数字式同步发电机自并励静止整流器励磁控制系统 ,研究了电力系统频率偏移对励磁控制的影响 ,导出了调节励磁电压的误差随频率偏移的变化规律 ,并提出了对励磁调节误差进行校正的方法。
4) frequency offset
频率偏移
1.
Effects of OFDMA system performance caused by frequency offset and synchronization error;
频率偏移和同步误差对OFDMA系统性能的影响
2.
The effect of frequency offset on YBX-1 high-frequency transceiver;
频率偏移对YBX-1型高频收发信机的影响
3.
To solve the problem of frequency offset out of intermediate frequency(IF) bandwidth for microwave and millimeter wave amplitude and phase receivers, an optimal architecture of low-IF quadrature receiver combining with double-sideband suppressed-carrier(DSBSC) was presented.
为解决微波毫米波幅相接收机的频率偏移超过中频带宽的问题,提出了一种低中频正交接收机结合双边带抑载的优化结构。
5) frequency shift
频率偏移
1.
The principle and the design of quadrature-beamformer are discussed and the effect of the frequency shift on the beam axis is theoretically analyzed.
介绍了正交波束形成器的原理和设计方法,针对频率偏移对波束主轴方向的影响进行了理论分析和讨论,仿真结果验证了理论分析的正确性。
2.
The frequency shift is obtained and compared with the effect of air damping.
推导了吸附效应影响下的频率偏移,并与空气阻尼对谐振频率的影响进行了比较。
6) frequency drift
频率偏移
1.
As it is, however, it is affected by the computer timing error and the AC signal frequency drift in practice.
但实际运用时，其精度都会受到采样定时误差和信号频率偏移的影响。
2.
The operational principles of photovoltaic generation system and the islanding of grid-connected generation system were analyzed, and the active identification method of islanding: active frequency drift method was proposed.
分析了光伏并网发电系统的工作原理及其孤岛效应现象,提出了主动式孤岛效应识别方法:主动频率偏移法。
3.
In order to reduce the non-detection zone(NDZ),a new frequency drift with voltage drift technique was proposed.
基于三相光伏并网逆变器论述了反孤岛效应策略,同时,为了进一步缩小不可检测区(NDZ)的范围,提出了一种正反馈频率偏移法与正反馈电压偏移法相结合的孤岛检测方法,并阐述了该方法的原理。
补充资料：处理器主频
主频也叫时钟频率，单位是MHz，用来表示CPU的运算速度。CPU的工作频率（主频）包括两部分：外频与倍频，两者的乘积就是主频。倍频的全称为倍频系数。CPU的主频与外频之间存在着一个比值关系，这个比值就是倍频系数，简称倍频。倍频可以从1.5一直到23以至更高，以0.5为一个间隔单位。外频与倍频相乘就是主频，所以其中任何一项提高都可以使CPU的主频上升。由于主频并不直接代表运算速度，所以在一定情况下，很可能会出现主频较高的CPU实际运算速度较低的现象。因此主频仅仅是CPU性能表现的一个方面，而不代表CPU的整体性能 。
所有CPU详细技术资料
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条