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高动态环境
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  high dynamic environment
     Study on Strapdown Algorithm and Its Realization by DSP under High Dynamic Environment
     高动态环境下捷联算法研究及DSP实现
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
     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 causing of conic error for missile strapdown inertial navigation system under high dynamic environment was discussed in this paper.
     分析了高动态环境中导弹捷联惯导系统(SINS)圆锥误差形成的原因。
短句来源
     In order to overcome the carrier Doppler frequency shift in notable high dynamic environment, the Fuzzy logic controller is introduced in the carrier tracking loop, formed the loop with FLC.
     针对高动态环境下显著的载波多普勒频移现象,本文提出了将Fuzzy逻辑控制器引入到载波跟踪环中,构成带有模糊逻辑控制器(FLC)的载波跟踪系统。
短句来源
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  high dynamic circumstance
     One of the difficulties of designing GPS receiver working under high dynamic circumstance is to fast acquire the satellite PN code.
     设计在高动态环境下工作的GPS接收机,其难点之一在于对卫星伪码的快速捕获。
短句来源
     GPS/UWB combined postioning system is discussed as well. The major works of this thesis are as follows:The effect of the Doppler frequency precision measurement of the pseudo-code delay in high dynamic circumstance is studied. The usage of the extended-Kalman-filter (EKF) method in estimation of the carrier phase and the receiving signal frequency are being investigated.
     论文的主要工作包括下述几个方面:在研究高动态环境中多普勒频率对伪码延时测量精度的影响的基础上,使用扩展卡尔曼滤波方法进行载波相位和频率的估计,并利用载波辅助技术由载波相位的变化来校正伪码延时环,降低多普勒频移对伪码延时环的直接影响,从而得到准确的伪码延时估计,提高了伪码延时环的动态性能。
短句来源
     A GPS ca rrier phase measurement scheme adapted to high dynamic circumstance is presented .
     提出了一种适合GPS系统的高动态环境载波相位测量方案 .
短句来源
     To design the GPS receiver working in high dynamic circumstance,the first problem to be settled is how to catch the PN code of the satellite.
     设计在高动态环境下工作的GPS接收机,其难点之一便在于对卫星伪码的快速捕获。
短句来源
     Laser gyro strapdown inertial navigation system (LSINS) has been an important development direction in recent years which is fit for high dynamic circumstance and low cost 、 good reliability、 high capability etc.
     激光陀螺捷联惯导系统具有适合于高动态环境、成本低、可靠性好、性能价格比高等优点,近年来已成为惯性技术的一个重要发展方向。
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  high dynamic circumstances
     GPS signal receiving and its algorithms under high dynamic circumstances
     高动态环境的GPS信号接收及其算法研究
短句来源
     Research on Cross-Ambiguity Function Estimator for GPS Signal and the Performance Analysis in High Dynamic Circumstances
     高动态环境的GPS信号互模糊函数估计器及其性能分析
短句来源
     GPS SIGNAL PARAMETERS ESTIMATION ALGORITHM BASED ON DATA TRANSITION DETECTION IN HIGH DYNAMIC CIRCUMSTANCES
     一种基于数据跳变检测的高动态环境GPS信号参数估计方法
短句来源
     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
     To track GPS signal in high dynamic circumstances more reliably,the paper presents a new estimator for GPS signal in high dynamic circumstances,that is cross-ambiguity function.
     为了更可靠地跟踪高动态环境GPS信号参数,提出了一种新的适应高动态环境的GPS参数估计方法———互模糊函数方法。
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  “高动态环境”译为未确定词的双语例句
     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
     Study of GPS carrier phase estimation method in high dynamic circumst ances
     适应高动态环境的GPS载波相位估计方法研究
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
     Research on Attitude Algorithm of Strapdown Inertial Navigation System under the Condition of High Dynamic Motion
     高动态环境下的捷联惯导系统姿态算法的研究
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.
      


One method of making the low dynamic GPS receiver adapt to Vehicle's high dynamic environment and providing the vehicle's accurate position data through the velocity aiding information provided by INS during vehicle flying are discussed, and the results of ground dynamic simulation test carried out with the GPS satellite signal simulator are given.

论述了一种在载体飞行过程中利用惯导系统(INS)提供速度辅助信息,使低动态民用全球定位系统(GPS)接收机适应飞行器的高动态环境、对载体进行精确定位的一种方法,并给出了利用GPS卫星信号模拟器进行地面动态仿真试验的结果。

In order to suit the demand of position under middle or high dynamic enviroment,an algorithm for continuously outputing high -rate GPS position data is presented in this paper.Two points linear prediction and five points square prediction are combined to filter and predict GPS position data, which solves the dcfect of low-rate lHz output data of the GN- 74 GPS receiver and makes low -cost common GPS possibily be employed under middle or high dynamic enviroment. Finally,experimental results have shown the validity...

In order to suit the demand of position under middle or high dynamic enviroment,an algorithm for continuously outputing high -rate GPS position data is presented in this paper.Two points linear prediction and five points square prediction are combined to filter and predict GPS position data, which solves the dcfect of low-rate lHz output data of the GN- 74 GPS receiver and makes low -cost common GPS possibily be employed under middle or high dynamic enviroment. Finally,experimental results have shown the validity of this algorithm.

为了适应中高动态环境下定位的需要,文章提出了一种GPS定位数据的高速率连续输出算法。它采用两点线性预测和五点二次预测的线性凸联合方法来滤波和预测GPS定位数据,克服了GN-74型GPS接收机的1Hz慢速数据输出的缺陷,使低成本民用GPS能在中高动态环境付诸实用。实验结果表明了本算法的正确性。

The problems met in high dynamic circumstances during estimating GPS signal parameters and detecting data transition are analyzed. The signal parameters are estimated through extended Kalman filter (EKF) algorithm. The pseudonoise (PN) code tracking through digital delay\|locked loop (DDLL) and carrier assistant technology are discussed. And a simple data transition detection and parameter correction method is studied emphatically. The tracking performance and tracking error of the algorithm are analyzed through...

The problems met in high dynamic circumstances during estimating GPS signal parameters and detecting data transition are analyzed. The signal parameters are estimated through extended Kalman filter (EKF) algorithm. The pseudonoise (PN) code tracking through digital delay\|locked loop (DDLL) and carrier assistant technology are discussed. And a simple data transition detection and parameter correction method is studied emphatically. The tracking performance and tracking error of the algorithm are analyzed through simulation. The simulation shows that this data transition method conduces to improve the parameters estimation precision, and the algorithm dynamic performance is ameliorated too.

鉴于高动态环境中 G P S信号参数估计和调制数据跳变检测所遇到的问题,采用扩展卡尔曼滤波方法( E K F)对信号参数进行了估计,分析了通过载波辅助技术实现伪码延时估计的原理,重点研究了一种简单的数据跳变检测和估计参数修正方法。模拟结果表明这种方法在信号参数估计精度和动态跟踪性能等方面都能够满足高动态环境的要求。

 
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