相位差

基于FPGA的频率周期及相位差测量的多功能计数器的实现

Multifunctional counter for measurement of frequence 、 period and phase difference based on FPGA

用AlterCPLD实现的虚拟相位差计设计

Design of Virtual Phase Difference Meter with Alter CPLD

基于DSP的高精度相位差测量系统

The Phase Difference Measurement Based on DSP With High Accuracy

一种低动态载波相位差分GPS测量中的粗差剔除算法

An Abnormal Data Eliminating Method Used in Low-dynamic Carrier Phase DGPS Position System

GPS载波相位差分技术实时测姿的研究与应用

Research and Application of Real-time Determination of Attitude Using GPS Carrier Phase Differential Technique

载波相位差分GPS定位技术

DGPS Positioning Using Carrier Phase Measurement

设计一个采用DSP技术和数字相关法测量两路正弦信号相位差的检测系统。

A measurement system for sine signal phase difference is designed by using DSP and digital correlation method .

OFDM系统中基于符号间相位差分调制的频偏估计模糊度校正算法

Frequency Ambiguity Resolution Algorithm for OFDM Systems Based on Phase Differential Modulation between Adjacent Symbols

研制了基于DSP的超声波电机位置控制系统，完成了采用相位差P控制方案进行精密定位控制的实验研究。

Furthermore , a precise position control scheme using P controller with dead-zone compensation to the phase difference is investigated theoretically and experimentally .

基于CPLD的相位差测量方法研究及实现

Research and Realization of phase measurement based on CPLD

基于加窗DFT的相位差高精度测量算法

New algorithm for high-accuracy phase difference measurement based on windowed DFT

本文重点阐述姿态测定的数学方法和双基线载波相位差GPS干涉仪观测的物理手段。

This paper deals with the mathematic and physical observation of dual-baseline phase differ - ences GPS interferometers for attitude determination .

本文实测了模型灭弧室的磁密分布及驱弧线圈电流I与弧区磁密B的相位差。

The magnetic flux density distribution in the model arc chamber and the phase difference between coil current I and magnetic field B have been measured .

在FTP（Fouriertransformprofilometry）法三维轮廓测量过程中，系统的结构不同，测量高度所引起的相位差与高度的对应关系也不一样。

The relationship of the phase and height is different with different system structure in Fourier transform profilometry .

利用这个VI程序还可以测量两个同频率信号的相位差。

VI program can be used to measure phase difference of two signals with same frequency too .

根据GPS测距和差分GPS定位原理，利用载波相位差分设备把采集的载波相位发送给用户站进行求差解算坐标，得到机动作战导弹火力单元的位置坐标。

It is gained that the position of missile fire power cell , by user station calculating the carrier wave gathered by carrier wave equipment .

通过分析及对比，提出了利用FFT谱分析进行信号相位差估计的方法。

Through analysis and comparison , proposed the use of FFT spectrum analysis as the phase difference estimation method .

望远镜的旋转会改变s光和p光间的相位差，影响信标激光的偏振态，导致偏振分光系统接收效率的退化。

During the rotating of the telescope the phase difference between s wave and p wave will change , and the receiving efficiency of the polarizing beam coupling and splitting system will decrease .

循环跟踪阶段，编写了A/D转换程序、相位差计算程序、PWM生成程序、D/A转换程序和参数显示程序，实现了控制思想。

The program includes A / D conversion , phase difference calculation , PWM formation , D / A conversion and numeral display .

基于EPP和计数器8254相位差的高精度测量

High-precision Measurement of Phase Difference Based on EPP and Counter 8254

相位差放大技术（PDA）是干涉测量领域里一种提高相位分辨率和测量精度的手段。

Phase difference amplification ( PDA ) was proposed as a means of improving phase resolution and accuracy in interferometric measurement .

相位差分法在波导型FMCW测距雷达中的应用

Application of Phase Difference in FMCW Waveguide Radar System

阐述了一种利用全球定位卫星载波实时相位差分（GPSRTK）技术的桥梁三维位移长期实时自动监测系统。

Three dimensional Constant Real time Automatic System for bridge displacement monitoring was described by using Global Positioning System Real Time Kinematic ( GPS RTK ) technology .

对在惯导平台车载试验误差模型辨识中使用全球卫星定位系统（GPS）载波相位差分（RTK）法进行了研究。

Global positioning system real time kinematic technology ( GPS RTK ) was applied to the error model identification of the inertial navigation platform in this paper .

查阅了国内外利用GPS载波相位差分技术进行方位解算方法。简要介绍了确定整周模糊度的一般流程与经典方法。

Studied the internal and abroad status of using GPS carrier phase technology to calculate attitude angle , made a brief introduction of the general process and classical methods for determine the integer ambiguity .

目前GPS的发展趋势表明，动态定位比静态定位具有更加广阔的应用天地，而只有载波相位差分技术才能满足实时高精度定位的要求。

Nowadays the development trend of GPS shows that kinematic positioning has more applications than static positioning , but only carrier phase differential GPS ( CDGPS ) can fulfill precise real-time positioning 's demands .

从片DSP程序采用C语言编写，在该硬件平台上实现了多目标定位的数据采集、信号实时检测、数据存储、相位差估计等功能。

The signal processing software for muti-target localization run at the hardware realized many central functions , including data collecting , signal real-time detecting , data saving , operation of phase difference estimate , and so on .

通过对建立的RC模型计算分析，引出了伪随机三频激电法的参数相对相位差的计算公式，并加以论证。

The formula for the parameter relative phase difference of the pseudo-random tripe-frequency IP method is draw through calculation and analysis of a established RC model , and a proof is given .

根据载波相位差分的数学模型，详细推导了双差基线向量的解算过程，并利用matlab编制了仿真软件；

According to the difference mathematical model of the carrier phase , derivates the double difference baseline vector solution to calculate the process in detail , and carries on the establishment of the simulation software using matlab ;

研究了基于FFT理论的电力谐波检测原理，提出一种基于相位差校正法的高精度电力谐波检测方法。

After studying on the measurement principle of power system harmonic based on FFT theory , this paper presents a high-accuracy method based on phase difference correcting to measure the harmonic .