逆计算

These two modes were integrated to form ground speed/air speed control law.

仿真计算表明动态逆方法在飞机穿越风切变的轨迹控制过程中实用有效。

The algorithm is based on a modification of Euclid s algorithm.

在扩展欧几里得算法的基础上提出了有限域乘法逆元的计算方法。

Synthesizing the analytic results, this paper concludes that using inverse model for the air motor rotation experiment can calculate reasonable damping coefficient and angular displacement simultaneously.

综合分析结果，本文所提出的逆解模式对气压马达转动实验，确可同时计算得到合的阻尼系与角位移。

According to present research status at home and abroad, the inversion problems of structure is resolved so successful in the region of pull-apart structure, there have many theory model, whereas, some special cases should be discussed, for example synthetic and antithetic faults form during rollover deformation in the hanging wall, these subsidiary faults share part of the cumulative extension in a listric fault system and may influence predictions of the major fault geometry.

从目前国内外在构造反演这一问题的研究现状来看，在拉张构造区域，反演问题在理论上有比较多的模拟解决办法，并且应用的相当成功，不过考虑到有些特殊的情况，比如逆牵引构造所派生的次级断裂会造成反演计算结果的不准确，因此对现存的反演模型稍微做出了点修改，使之更能广泛的应用于实际的构造解释。

Convert relationship of prototype robot joint angle and equivalent model joint angle is presented based on the method of kinematics inverse solution. The Jacobian algorithm of redundant robot for achieving effective joint excursion is studied, which is fit for digital calculating. The grads projection algorithm of redundant robot multi optimizing capability function's proportion factor is deduced. The issues of apery arm robot singularity and joint self-movement are researched. The simulation experiment result of apery arm joint self-movement and line movement is presented.

因为七自由度拟人手臂机器人的建模比较困难，采用了在等效模型下求解其运动学逆解的方法，给出了原机器人机构关节角与等效模型关节角之间的转换关系；提出了一种适于数值计算的有效的求解有关节偏置的冗余度机器人Jacobian的算法，并在此基础上推导了冗余度机器人多优化性能指标函数的均衡比例因子梯度投影算法；研究了拟人手臂机器人的奇异问题和关节自运动问题；给出了拟人手臂进行关节自运动和进行直线轨迹跟踪的仿真实验结果。

According to by the time series estimate power spectral density\'s periodogram law principle,the research adopts five level of orbital power spectra which US Federal railway Administrative bureau FRA proposed;then,through the Fourier inverse transformation,the orbital not smooth time domain samples are obtained, which determine the track irregularity peak-to-peak value and the corresponding wave length; on the basis of the research,the influence of the wheel track dynamic contact force are considered.Based on the orbital roadbed coefficient\'s definition,computation model is established to solve the roadbed equispaced spring constant,and the roadbed uniform spring stiffness is obtained by using the numerical simulation method.Finally,based on the Matlab procedure platform,the computational procedure is established,and the load time interval caused by the moving train acts on the roadbed is obtained.

根据由时间序列估计功率谱密度的周期图法原理，采用美国联邦铁路管理局FRA提出的五级轨道功率谱，通过Fourier逆变换得到轨道不平顺的时域样本，确定了轨道不平顺的幅值及对应的波长，以此为基础考虑轮轨动态接触力的影响；基于轨道路基系数的定义建立了求解路基均布弹簧刚度的计算模型，采用数值模拟得到了路基均布弹簧刚度；最后，基于Matlab程序平台编制了计算程序，得到了运行列车作用到路基上的荷载时程。

In aim at the complicity and high-dimensional state-space for the controlled system, it simplifies the calculation of geometric polytope by optimize with ellipsoidal approximate techniques, and the robust control effectiveness near to the optimal.

本论文所提示的基于几何理论的约束非线性控制算法是建立在最大输出允许集合的基础上，运用状态空间的有界子集表达鲁棒时优离散时间控制问题的价值函数，通过逆序计算该价值函数的水平集合，求得其所需的控制量，针对被控系统的复杂性及高维状态空间问题，运用椭球近似技术予以优化，使得几何多面体的计算得以简化，且鲁棒控制效果接近最优。

For the multisensor systems with uncorrelcted noises,and with unkonw noise varaies.substituting the information fusion noise variance setimators based on the correlct method into the centralized fusion optimal information filter,a self-turning centralized fusion information filter is presenced compared with the self-turning centralized fusion Kalman filter based on the Riccati equation,it can be avoid to compute zhe inverse matrix with high dimension,so that the calculation hurden can be reduced significantly.

对于带未知噪声系统和不相关噪声的多传感器随机系统，将基于相关方法得到的噪声方差带入到集中式融合最有信息滤波器，提出自校正集中式融合信息滤波器。同基于Riccatia方程的集中式融合Kalman滤波器相比它避免了计算高维矩阵的逆，从而减少了计算负担。

In order to decrease the calculation in the control law of the GPC, a neural network inversing controller with multi-step-ahead cost function is introduced.

针对基于神经网络预测模型的广义预测控制算法控制量计算中存在的计算量大的问题，提出了多步预测性能指标函数下的神经网络逆控制方法。

Re-calculation of the Gulf region over the next 30 years the probability of earthquake risk; access to the prehistoric earthquake in the time and strength, strike-slip fault with the city's fault slip rate of new information; development of the Gulf region, the new three-dimensional structure of the crust and sedimentary rock velocity model ; Calculation in the Gulf region's history, location and intensity of the earthquake, regional seismicity rate changes over time, little is known about the fault is, unknown thrust fault and the fault rate of seismic activity; development of the Quaternary sedimentary rocks in the area of new digital map .

重新计算海湾地区未来30年地震危险概率；获取史前大地震的时间和强度、城市内走滑断层的断层滑动速率的新的信息；发展海湾地区新的地壳三维结构和岩石沉积岩速度模型；计算海湾地区历史地震的位置和强度、区域地震活动性速率随时间的变化、了解甚少的正断层、逆断层及未知断层的地震活动速率；发展该地区第四纪沉积岩的新的数字地图。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。