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高动态环境
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  high dynamic environment
    Precise Estimation Method of Pseudo\|Random Code Delay of Spread Spectrum System in High Dynamic Environment
    高动态环境扩频系统伪码延时的精确估计方法
短句来源
    The paper takes the newly coming GNSS, or Galileo system, as the main technical background, implements the Galileo user receiver architecture design and studies Galileo signal receiving, acquisition and tracking algorithms under high dynamic environment.
    本文以最新一代卫星导航系统即Galileo系统作为主要应用背景,实现Galileo用户接收机的架构设计及在高动态环境下Galileo信号的接收、捕获和跟踪算法的研究。 接收机设计涉及到了扩频通信、软件无线电和卫星导航等多个技术领域。
短句来源
    The Research of the Algorithms for GFSINS in High Dynamic Environment
    高动态环境下的无陀螺捷联惯导系统算法研究
短句来源
    In terms of the rotation vector differential equation, the source of thenoncommutativity errors including coning and sculling errors is analyzed and coning algorithms are given for SINS in high dynamic environment.
    讨论了高动态环境下,SINS中不可交换误差的补偿算法。 首先,根据旋转矢量微分方程,分析了不可交换误差产生的根源,给出圆锥误差补偿量及其一般形式。
短句来源
    From the practical demand, this thesis studies the high precision algorithms for SINS in high dynamic environment.
    本文从实际需要出发,对适合高动态环境的捷联惯导系统的高精度姿态算法进行了研究。
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  high dynamic circumstances
    Study of Signal's Rapid Acquisition for Spread Spectrum Communication System in High Dynamic Circumstances
    高动态环境下扩频通信系统信号快速捕获的研究
短句来源
    Digital Implementation and Studies on Algorithm of Carrier Synchronization under High Dynamic Circumstances
    高动态环境下载波同步模块的数字化实现及算法研究
短句来源
    In this paper,the effect of Delay and Doppler shift on the spread specturm signal's acquisition is analyzed and simulated using MATLAB.Furthermore,a signal's two-dimensional researching method in spread spectrum communication system under high dynamic circumstances is presented,and a rapid acquisition method of PN code using folder filter is put forward.
    文中分析时延、多普勒频移对扩频信号相关接收的影响 ,并利用 MATLAB进行仿真 ,在此基础上给出一种高动态环境下扩频通信系统信号二维搜索方法 ,提出采用折叠匹配滤波实现伪码快速捕获。
短句来源
    The simulation result shows that this method implements long PN code(1023) spread spectrum signal's rapid acquisition under high dynamic circumstances and the hardware resource is reasonable configuration.
    电路仿真结果表明此方法实现了长伪码 ( 1 0 2 3码长 )在高动态环境下的快速捕获 (≤ 0 .2 s)和硬件资源的合理配置
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  “高动态环境”译为未确定词的双语例句
    A GPS SignaI Tracking Method and Realization for High Dynamic Application
    一种高动态环境GPS信号的跟踪方法及实现
短句来源
    Design of Pseudo-noise Code PLL in High Dynamic Condition
    高动态环境中伪码锁相环设计
短句来源
    Study on Improved Algorithm of Random Direction Mobility Modeling in High-dynamic Environment
    适于高动态环境下的随机方向移动模型改进算法研究
短句来源
    This paper introduces a new rapid acquisition and tracking algorithm for high\|dynamic GPS C/A code is introduced.
    针对高动态 GPS接收机 C/ A码的快速捕获与跟踪问题进行了研究 ,介绍了一种高动态环境下的伪码快速捕获与跟踪算法。
短句来源
    The method presented adopts segmented matched filter detector, maximum-selection detection algorithm and FFT frequency correction with quadratic interpolation.
    在此基础上提出一种在高动态环境下的码捕获新方法,该方法采用分段匹配滤波相关、最大选择检测算法和二次内插的FFT校频技术.
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  high dynamic environment
The second flight test evaluated the performance of the proposed navigation system and demonstrated the benefit of GPS attitude information in a high dynamic environment.
      
It is designed for heterogeneous end-hosts and constructs tree that is vulnerable at high dynamic environment.
      


In order to solve the slowly modified rate about 1Hz of a GPS and the infinite position error of an INS,a continuously high accurate positioning algorithm of a linear convex combination of a linear two point and a quadratic five point polynomial to filter and predict GPS/INS positioning data is presented in this paper The integration experiment of real GPS data and simulated INS data has shown the validity of this method It provides a new approach of continuously high accurate realtime position under middle...

In order to solve the slowly modified rate about 1Hz of a GPS and the infinite position error of an INS,a continuously high accurate positioning algorithm of a linear convex combination of a linear two point and a quadratic five point polynomial to filter and predict GPS/INS positioning data is presented in this paper The integration experiment of real GPS data and simulated INS data has shown the validity of this method It provides a new approach of continuously high accurate realtime position under middle or high dynamic environment

为了克服独立的惯性导航系统无限制的位置误差和 G P S的1 Hz 慢速数据修正速率的缺陷,本文提出了对两种具有不同输出数据速率运动传感器 G P S与 I N S融合算法,研究了五点二次和两点线性预测的高精度连续融合定位算法,真实 G P S数据和模拟 I N S数据融合的实验证明了该方法的正确性,为在中、高动态环境下的高精度实时连续定位提供了一种新的途径。

The problems met in high dynamic circumstance during tracking GPS signal are analyzed, and the basic methods of tracking GPS signals in this circumstance are studied too. The pseudonoise(PN) tracking theory through digital delay locked loop and carrier assistant technology is discussed. The algorithm of three order frequency extended Kalman filter(FEKF) is presented and studied emphatically for estimating the Doppler frequency and therefor tracking carrier frequency, The tracking performance and tracking...

The problems met in high dynamic circumstance during tracking GPS signal are analyzed, and the basic methods of tracking GPS signals in this circumstance are studied too. The pseudonoise(PN) tracking theory through digital delay locked loop and carrier assistant technology is discussed. The algorithm of three order frequency extended Kalman filter(FEKF) is presented and studied emphatically for estimating the Doppler frequency and therefor tracking carrier frequency, The tracking performance and tracking error of two and three order FEKF are simulated and compared. Finally, a GPS Signal tracking scheme in high dynamic circumstance is put foreword.

鉴于在高动态环境跟踪GPS信号所遇到的问题,分析了高动态环境跟踪GPS信号的基本方法,讨论了通过延时锁定环和载波辅助技术进行伪码跟踪的原理,重点研究通过3阶频率扩展卡尔曼滤波算法(FEKF)进行多普勒频率估计并进行载波跟踪的原理,模拟分析了FEKF算法的动态跟踪能力和频率估计误差,提出了一种适合高动态环境要求的GPS信号跟踪方案

The problems met in high dynamic environment during direct spread spectrum system measuring pseudo random (PN) code delay are analyzed, and the effect of Doppler frequency shifted on PN code delay is studied emphatically. Carrier phase and frequency of high dynamic direct spread spectrum signal are estimated through extended Kalman filter (EKF) algorithm. The PN delay loop is adjusted through measuring the varied value of carrier phase with carrier aiding technology. The effect of Doppler shift on PN code delay...

The problems met in high dynamic environment during direct spread spectrum system measuring pseudo random (PN) code delay are analyzed, and the effect of Doppler frequency shifted on PN code delay is studied emphatically. Carrier phase and frequency of high dynamic direct spread spectrum signal are estimated through extended Kalman filter (EKF) algorithm. The PN delay loop is adjusted through measuring the varied value of carrier phase with carrier aiding technology. The effect of Doppler shift on PN code delay is reduced through carrier aiding technology. The precise delay estimation is obtained. The dynamic tracking performance of the PN delay loop is improved.

针对在高动态环境直接扩频系统伪码延时测量所遇到的问题 ,分析了多普勒频移对伪码延时的影响 .利用扩展卡尔曼算法 (EKF)对高动态直接扩频信号的载波相位和频率进行了估计 ,并利用载波辅助技术测量载波相位的变化值来校正伪码延时环 ,减小多普勒频移对伪码延时的影响 ,得到了精确的延时估计值 ,提高了伪码延时锁定环的动态跟踪性能

 
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