Description: The dynamics of orbit uncertainty in an unstable orbital environment are discussed
with specific application to the orbit determination of a halo orbit about
the Earth{Sun L1 point. This article documents a simplified orbit determination
covariance program developed under Telecommunications and Mission Operations
Division Technology support. The program is ideally suited to investigate spacecraft
trajectory navigation in challenging environments, where the basic dynamics
of the trajectory can no longer be modeled using near-Keplerian motion. Platform: |
Size: 647168 |
Author:yag |
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Description: 用LabVIEW实现的“飞行姿态控制仿真”。内有vi：俯仰和滚转控制器、航向控制器、键按下增大、键盘操作、姿态角误差转换、阻尼器。还有9个显示vi和12个模型vi。
飞行控制的目的主要是通过控制飞行器的姿态和轨迹来完成飞行任务，然而飞行轨迹很大程度由飞行姿态决定。可见飞行器姿态控制，在整个飞行控制系统中处于重中之重的地位。飞行姿态控制的好坏直接关系到飞机能否安全、平稳、快速的地飞行。与其它控制系统一样，可用稳定性和动稳态性能来衡量控制效果。稳态时，要使飞行器姿态足够接近所需的飞行姿态，才能让飞机以一定的航迹航行。而姿态变化的过程，要求系统稳定，响应快，超调小，振荡少，即姿态能够快速平稳过渡。早期，可以通过优化飞机的气动布局来改良飞机的飞行性能，但随着飞行的速度与高度的增加，空气变得稀薄，阻尼随之减小，飞行的气动模型也发生了大的改变，已经难以通过外形设计来增强稳定性，而设计优良飞行姿态控制器是必由之路.
-Using LabVIEW to achieve the "flight attitude control simulation." There vi: pitch and roll control, heading control, key press increases, keyboard operation, attitude angle error change, and the dampers. There are nine show vi and 12 model vi.
The main purpose of the flight control is by controlling the aircraft attitude and flight trajectory to complete the task, but a large degree trajectory decision by the flight attitude. Spacecraft attitude control can be seen in the flight control system in the most important position. Flight attitude control has direct bearing on whether the aircraft safe, stable, fast to the ground. And other control systems, stability and dynamic steady-state performance can be measured in control performance. Steady state, make the aircraft attitude close enough to the required flight attitude, to allow the aircraft to a certain track navigation. The attitude change process, requiring system stability, fast response, small overshoot, small oscillations, Platform: |
Size: 424960 |
Author:zhou |
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Description: Maxwell Noton书中的程序
originally compiled and linked in Borland Turbo C++, version 3.0-SPACECRAFT NAVIGATION AND GUIDANCE Platform: |
Size: 256000 |
Author:刘星 |
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Description: 原来被用在航天器导航，如今卡尔曼滤波器使用于许多应用程序。它主要是用来估计系统狀態只能直接观察或不准确的系统本身。-Originally developed for use in spacecraft navigation, the Kalman filter turns out to be useful for many applications. It is mainly used to estimate system states that can only be observed indirectly or inaccurately by the system itself. Platform: |
Size: 287744 |
Author:蘇建彰 |
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Description: 用于四轴飞行器的姿态算法，内含各种矩阵加减乘转置、求逆等运算，及姿态kalman滤波算法，可适用于低速旋翼机的姿态导航-For four-axis spacecraft attitude algorithm, containing a variety of matrix addition and subtraction to multiply the transpose and inverse operations, and attitude Kalman filtering algorithm applied to the low-speed rotorcraft gesture navigation Platform: |
Size: 252928 |
Author:刘小码 |
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Description: kalman filter
Originally developed for use in spacecraft navigation, the Kalman filter
turns out to be useful for many applications. It is mainly used to estimate
system states that can only be observed indirectly or inaccurately by the
system itself. Platform: |
Size: 318464 |
Author:Bumy |
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Description: 用于解决航天动力学，航天任务设计，导航制导控制问题-The Java Astrodynamics Toolkit is a library of components to help users create their own application programs to solve problems in astrodynamics, mission design, spacecraft navigation, guidance and control using Java or Matlab. Platform: |
Size: 17456128 |
Author:董鑫 |
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