助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   高动态环境 在 自然地理学和测绘学 分类中 的翻译结果: 查询用时:0.013秒
图标索引 在分类学科中查询
所有学科
自然地理学和测绘学
电信技术
航空航天科学与工程
更多类别查询

图标索引 历史查询
 

高动态环境
相关语句
  high dynamic circumstance
    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
    In this dissertation,for the question of GPS signals acquisition and tracking under high dynamic circumstance,some problems existed in receiving GPS signals are analysed,which is brought by high dynamic circumstance. Based on the analysis,FFT code fast acquisition algorithm,integrated phaselocking and frequencylocked tracking strategy are presented. Designing methods of code circus,carrier circus structure and parameter are explained.
    针对高动态环境下GPS信号的捕获和跟踪问题,分析了高动态环境对GPS信号的影响,提出了FFT码快速捕获算法,以及二阶FLL与三阶PLL混合载波跟踪方案,并对码环和载波环的结构和参数的设计方法进行了说明。
短句来源
    The simulation results and analysis show that the designing realize the signal′s fast acquisition under high dynamic circumstance and keep dynamics performance and tracking precision at the same time.
    仿真结果和分析表明该方案能在高动态环境下实现信号的快速捕获,且能较好地满足接收机动态性能和跟踪精度的要求。
短句来源
    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
更多       
  high dynamic circumstances
    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
    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 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
    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。
短句来源
    Under the condition of assuming high signal-to-noise ration,it educes the estimating variance of Cross-Ambiguity function estimator and the Cramer-Rao Bounds. At last,the paper presents the result:It is asymptotically unbiased and asymptotically effective to adopt Cross-Ambiguity function for estimating jointly the delay and Doppler frequency shift of GPS signal in high dynamic circumstances.
    在假定高信噪比的条件下,推导了互模糊函数估计器的估计方差以及Cram er-Rao界,得出了采用互模糊函数法对高动态环境GPS信号的时延和多普勒频移进行联合估计是渐近无偏和渐近有效的结论。
短句来源
更多       
  “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
    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
    Rapid Acquisition of PN Signals in Dynamic Situation
    高动态环境下的伪码快捕方法综述
短句来源
    The difficult of receiving GPS signal met in high dynamic cireumstance is discussed, the pivotal technology in designing high dynamic GPS receiver is analyzed. And the use of high dynamic GPS receiver in guidance is studied emphatically .
    针对高动态环境给接收GPS信号带来的问题,分析了设计高动态GPS接收机的关键技术,重点讨论了GPS在导弹制导中的应用方法。
短句来源
    Simulation results indicate that the method can reduce non-real time error caused by GPS application in high dynamic flight.
    仿真结果表明,该方法能有效减小高动态环境下定位非实时性带来的误差。
短句来源
查询“高动态环境”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
没有找到相关例句


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。

The difficult of receiving GPS signal met in high dynamic cireumstance is discussed, the pivotal technology in designing high dynamic GPS receiver is analyzed. And the use of high dynamic GPS receiver in guidance is studied emphatically .

针对高动态环境给接收GPS信号带来的问题,分析了设计高动态GPS接收机的关键技术,重点讨论了GPS在导弹制导中的应用方法。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关高动态环境的内容
在知识搜索中查有关高动态环境的内容
在数字搜索中查有关高动态环境的内容
在概念知识元中查有关高动态环境的内容
在学术趋势中查有关高动态环境的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社