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着陆精度
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  landing precision
     By use of covariance analysis technique a propagation equation of the error variances of linear discrete random system is derived which allows to calculate directly the airplane landing precision. And the influence of filtering sensitivity on the airplane landing control is further analysed.
     用协方差分析法,推导出可直接计算飞机着陆精度的线性离散随机系统的误差方差的传播方程,并进一步分析了滤波灵敏度对飞机着陆控制的影响。
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  “着陆精度”译为未确定词的双语例句
     Simultaneously, several control strategies were brought forward in view of the basic flight properties of parafoil system.
     仿真结果表明,建立的控制器和控制策略是可行的,两者结合能有效地提高翼伞系统的抗风性能和着陆精度
短句来源
     The aerodynamic configuration of reentry module of manned spacecraft is satisfied by a number of requirements, primary of these are aerodynamic stability,controllability, trim lift to drag ratio, maximum load factor, maximum heat transfer rate,total heat load,aerodynamic maneuvering capability, accuracy of landing and volumetric efficiency,etc.
     载人飞船返回舱的外形设计要满足稳定性、操纵性、配平升阻比、最大过载、最大热流、最大总加热量、机动能力、着陆精度和容积系数等要求。
短句来源
     The simulation result proves that this method is very efficient for auto landing system.
     结果表明,这种方法可以有效地提高着陆精度并严格控制接地时的滚转角。
短句来源
     This paper deals with the exact-landing of aerocraft and discusses a kind of the technique of optimizing the orbit-alteration for the exact-landing of aerocraft by using evolution-algorithm,based on single-pulse on orbital apogee and common single-pulse.
     针对在轨对地定点再入方面的问题,重点讨论了远地点单脉冲变轨模式和一般单脉冲变轨模式,在此基础上提出了一种基于进化算法在轨对地定点着陆的优化变轨分离技术,这样既保证了着陆精度,又保证了所耗能量最小。 通过仿真计算,验证了该方法的正确性。
短句来源
  相似匹配句对
     The Three-dimension Accuracy
     三维精度
短句来源
     precision:1%FS;
     精度:1%F.S.;
短句来源
     LANDING IMPACT ATTENUATION TECHNOLOGIES REVIEW
     着陆缓冲技术综述
短句来源
     What's more, the state equation and measurement equation for Kalman filters are constructed to estimate system position and azimuth angle.
     为了保证着陆引导的精度,建立了Kalman滤波器估计系统位置和航向偏角。
短句来源
     At last, simulation of aircraft's auto-landing in gliding mode shows that the method has strong robustness and good tracking precision.
     最后通过飞机着陆下滑段的仿真验证表明,该方法具有强的鲁棒性和良好的跟踪精度
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Using Synthesis analysis of invariable dynamic system, a lift-drag ratio of flying vehicle at re-entry phase has been obtained to ersure landing accuracy under circumstance of disturbing force.

利用恒定动态系统综合分析方法的数学基础。求出了飞行器在再入段中的升阻比,以便在有干扰作用下,保证飞行器的着陆精度

In this paper the mathematical models of the airplane approach flight and the GPS navigation observer are presented, The optimal control for the airplane precision landing approach is established, the stable landing window for Airbus-300 (as an example) is determined, the reachable landing category for various GPS positioning precision is calculated, the influence of sampling period on the landing precision is studied and the effects of atmospheric turbulence and side wind on the landing precision are analysed....

In this paper the mathematical models of the airplane approach flight and the GPS navigation observer are presented, The optimal control for the airplane precision landing approach is established, the stable landing window for Airbus-300 (as an example) is determined, the reachable landing category for various GPS positioning precision is calculated, the influence of sampling period on the landing precision is studied and the effects of atmospheric turbulence and side wind on the landing precision are analysed. Some conclusions are drawn from the results of calculation and numerical simulation.

建立了飞机进场的数学模型和导航观测器模型;确定了导引飞机精密进场的最优控制;以Airbus-300为例,给出了稳定的着陆窗口;计算了在GPS的各种定位精度范围内,从着陆窗口内开始着陆的飞机所能达到的等级;研究了GPS采样周期对飞机着陆精度的影响;分析了大气紊流和常值侧风对飞机着陆精度的影响。从计算和数值仿真结果得出了一些初步结论。

This paper deals with the problems of the optimal control of the airplane landing in presence of atmospheric turbulence with application of the theory and me-thods of random optimal control. By use of covariance analysis technique a propagation equation of the error variances of linear discrete random system is derived which allows to calculate directly the airplane landing precision. And the influence of filtering sensitivity on the airplane landing control is further analysed.

论述了应用随机最优控制理论的基本原理和方法,解决飞机在大气紊流中着陆的控制问题。用协方差分析法,推导出可直接计算飞机着陆精度的线性离散随机系统的误差方差的传播方程,并进一步分析了滤波灵敏度对飞机着陆控制的影响。

 
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