reference phase

Adaptive Prediction of the Reference Phase Angle in Real-time Phasor Measurement of the Electric Power System

电力系统实时相角测量中的参考相角自适应预测

These signals provide an important reference of the gain of antenna, the time reference, the phase reference and the frequency of carrier wave for generating stimulant echo signal.

这些信号分别为模拟回波信号的生成提供了天线增益大小、时间基准、相位基准和载波频率大小等重要的参考信息。

Since a normal incidence plane wave is used as the reference wave, the difficulty and complexity of phase aberration and phase unwrapping of DHM are remarkably decreased.

使用垂直于像平面的平面光为参考光，降低了数字全息显微术中相位补偿和解包的难度和复杂性。

Prediction of Reference Phase Angle in the Electric Power System Based on LS-SVM

基于LS-SVM的电力系统参考相角预测

In the first one of them, the equation to calculate the phase shift between two adjacent frames is deduced by solving a monadic quadratic equation and then the arbitrary unknown phase shift can be calculated by using the two interferograms and the intensities of object and reference waves.

其一是通过求解一元二次方程，推导出相邻两幅干涉图之间相移量的计算式，由相邻两幅干涉图和物光及参考光强度计算任意未知相移量。

High-Accuracy Digital Three-Phase Reference Sine Wave Signal Generator Based on FPGA

基于FPGA的高精度数字式三相基准正弦信号发生器的设计与实现

A real-time current detection based on FBD ( Fryze-Buchholz-Dpenbrock) method is pre-sented to detect the harmonic, negative-sequent and zero-sequent currents in three-phase four-wire system, and the essential of the method is the projection transformation of reference voltage.

为了快速、有效地检测出三相四线制电力系统中的谐波、负序和零序电流，提出了一种基于FBD法的电流实时检测方法。

An improved I p-iq algorithm for detecting compensation reference current is mentioned. It can real-timely decompose the fundamental positive sequence active component of three-phase current, witch improves the speed and accuracy of compensation reference current detection.

提出了基于改进ip-iq法的补偿指令电流检测算法，该算法能实时地检测出三相电流的基波正序有功分量，提高了补偿指令电流检测的速度和精度。

For estimating the TBM trajectory in its terminal phase accurately, and meeting the real-time requirement of air-defense, an adaptive filter based on input estimator and with reference to extended Kalman filter is put forward.

为了精确地预测出处于末端机动条件的TBM弹道，并满足防空作战实时性的要求，本文在广义卡尔曼滤波的基础上提出了一种基于输入估计的自适应滤波方法。

Based on the analysis, a frequency and phase stabilized two-phase sinusoidal power clock generator is proposed, which, while connected to an external reference clock, makes the oscillating circuit in synchronization with the reference clock.

在此基础上，提出了稳定功率时钟频率与相位的功率时钟产生电路，即接入外部参考时钟，使振荡电路与参考时钟同步。

The ballistic parameters are measured during the earlier stage of the booster phase. The impact deviation can be predicted based on the difference between measurements and reference trajectory. Thus the azimuth angle and action times of impulse mortars are to be determined.

通过测量主动段前期的弹道参量，比较同一时刻其与基准弹道的偏差量，再估算得到落点偏差，确定脉冲作用方位角和作用次数。