球坐标系 meaning in Chinese
ansys global spherical
spherical coordinate system
Examples
- Considering the missile - target intercepting in reality is always under the three dimensional environment , so the equation of missile - target relative motion is eastablished in three dimensional spherical coordinates
摘要考虑到真实的导弹目标拦截都是在三维环境下进行的，因此在三维球坐标系下建立了导弹目标的相对运动学方程。 - The dynamic model in the spherical coordinate is presented for bearing - only target positioning . however , such model has unknown covariance of process noise , which is related to the range between the target and the passive sensor
简要概述被动定向跟踪，推导了球坐标系下的匀速运动目标的定向跟踪模型；状态建模的不完备性引起了模型噪声方差阵带有未知径距参数，因而需要解决参数在线辨识问题。 - By application navier - stokes equations under the sphere coordinate , the calculation formula of the support load of the oil film of the ball joint coupling based on hydrostatic bearing . support property equation of this ball joint coupling was set up . at same time , the formula of the oil film stiffness was established
运用球坐标系下的纳维-斯拖克斯方程组推导出静压支承球铰副油膜支承反力的求解公式，给出了静压支承球铰副油膜支承特性方程，得出了静压支承球铰副油膜刚度计算公式； 4 - The last , taking into account of the nonlinear transformation from sphere frame to cartesian frame , maneuvering target tracking is simulated by using current statistical model and converted measurement kalman filter ( cmkf ) without linearization bias in the statistical condition . the paper presents the converted measurement covariance that determines when to use the current measurements vs . the predicted state , and the simulation results are satisfied
最后，针对球坐标系与直角坐标系之间的变换是非线性变换的特点，哈尔滨工程大学博士学位论文运用统计条件下不存在线性化误差的转换测量卡尔曼滤波算法，结合“当前”机动模型对机动目标进行了仿真研究。 - Based on this theory , a conception about flight path dynamic prediction and arithmetic which named adaptive a - p filtering with faking acceleration revising in the spherical coordinate is then presented in this paper , and write code on the real - time operating system which called vxworks . many simulations proved the value of adaptive a - p filtering . the application of flight path dynamic prediction in improvement of multitarget tracking performances is also studied and an application example is given
在此基础上，结合工程实际，通过引入航迹动态预测时间概念，笔者提出航迹动态预测方法和球坐标系下带伪加速度修正的-自适应滤波算法，并且在vxworks操作系统上编程实现；通过大量的仿真工作，验证了带伪加速度修正的-自适应滤波算法的应用价值；同时，还对应用航迹动态预测的多目标跟踪性能进行了深入的讨论，得出了航迹动态预测方法在多目标跟踪中的实践意义。