heterodyne tracking是什么意思

网络释义

用法例句

Zero-tracking error servo controller based on feedforward and adaptive filter;

基于前馈及自适应滤波的零跟踪误差伺服控制

Empirical Research on SSE 50 ETF s Tracking Error;

上证50ETF的跟踪误差实证研究

Indexing Investment Models and Performance Evaluation Based on Tracking Error;

基于跟踪误差的指数投资模型与业绩评价

explains function of current inner loop and voltage external loop respectively,and proves that APFC circuit makes power factor ap- proach 1 in term of no difference following.

本文从控制理论的角度阐述了有源功率因数校正电路的控制机理,给出了各环节的传递函数,以及系统的闭环结构图,分别阐述了电流内环和电压外环的作用,从无差跟踪的角度说明了有源功率因数校正电路使功率因数接近于1的机理。

There are many drawbacks in conventional feedback based video compression reference frame selection(RFS) and error tracking.

在实验数据的基础上对比分析了基于反馈信道的差错跟踪(Error Tracking)和单参考帧选择技术(RPS)在编码效率方面的不足。

The algorithm incorporates rate distortion optimized mode selection based on the channel condition (forward) with an error tracking technique based on feedback (backward).

结合了考虑信道条件的率失真模式选择(前向)和基于反馈的差错跟踪(后向)两种技术。

An approach,named forward error tracking, compatible with the ITU-T video coding standard H.

为更好地遏制差错的进一步传播,介绍了一种正向视频差错跟踪技术。

In direct conversion navigation receiver,due to the IQ mismatch,there will be track error in carrier phase and code phase.

分析了直接下变频导航接收机中,I、Q信号的非正交引起的载波及伪码的跟踪误差。

As a kind of predictive control algorithms based on step response, dynamic matrix control algorithm ensure system’s control characteristic via optimizing track error and restricting increment of the control signal.

作为一种基于对象阶跃响应的预测控制算法,动态矩阵控制在性能指标函数中通过对跟踪误差的优化及对控制量增量的软约束来保证控制的性能,指标函数中并没有考虑跟踪误差变化率对系统动态响应的影响。

Finally the track error of single input system was analyzed and the solving method was given.

根据系统的控制框图, 分析了系统的稳定性和控制器参数的整定以及单输入系统的跟踪误差,并给出了解决方法。

The differential mode tracking system is an automatic zero tracking system diffe rent from the multi-horn one.

差模跟踪是不同于多喇叭跟踪的零值自动跟踪体系。

Identification and Modeling of Tracking Error Using BP Neural Network and Evaluation of Tracking Performance

用BP网的跟踪误差辨识建模及跟踪性能评价

Empirical Research on SSE 50 ETF s Tracking Error;

上证50ETF的跟踪误差实证研究

Extraction of Error Signals for Visual Tracking Based on CCD Video Camera Imaging;

基于CCD摄像的视觉跟踪误差信号提取

The Empirical Study of Index Investment Basedon Tracking Error

基于跟踪误差的指数化投资实证研究

GPS PN Code Tracking Error Estimator with Model Bias

一种含模型偏差的GPS伪码跟踪误差估计器

Risk Control Mechanism of Active Portfolio Investment with Tracking Error Constraints

跟踪误差下积极资产组合投资的风险约束机制

A Study on the Model of Portfolio Investment Decision Based on Tracking Error

基于跟踪误差的证券组合投资决策模型研究

A Study on Tracking Error of ETF in China;

我国交易型开放式指数基金（ETF）跟踪误差的研究

Indexing Investment Models and Performance Evaluation Based on Tracking Error;

基于跟踪误差的指数投资模型与业绩评价

Robust Optimal Tracking Error Portfolio Models Based on VaR;

具有VaR约束的跟踪误差投资组合鲁棒优化模型

By applying the control method to the practical system, the maximum trace error remains under±10μ m in the closed-loop positioning system.

实验证明,系统在低速跟踪时,采用该方法实现了最大跟踪误差小于±0.1μ。

The Research of Contour Following Error Control and Compensating Methods for Multi-axes Motion;

多轴运动下的轮廓跟踪误差控制与补偿方法研究

By theoretical analysis, the closed-loop control system is proved to be semi-globally uniformly ultimately bounded with tracking error converging to zero.

理论分析证明了闭环系统是半全局一致终结有界,且跟踪误差收敛到零.

Design of Servo Parameters and Analysis of Tracking Error Algorithm for Airborne Electro-optic(EO) Tracking Equipment

光电跟踪伺服参数设计与跟踪算法误差分析

An Improvement of the Error Signal Amplifier in the Angle Tracking System

角跟踪系统中误差信号放大电路之改进

Studying and Analyzing on the Error of Positioning in Airborne Photo-electricity Tracking Survey Equipment;

机载光电跟踪测量的目标定位误差分析和研究

Research About Compensating Method To Installation s And Manufacture s Error of Pole Track Satellite Antenna;

极轨卫星跟踪天线安装制造误差补偿方法

Estimation Error Analysis on Optic-electric Tracking System with Intermittent Observations

不完全量测下光电跟踪系统估计误差分析