首页> 外文学位 >Variable Memory Recurrent Neural Networks for Nano Sat Launch Vehicle attitude control.
【24h】

Variable Memory Recurrent Neural Networks for Nano Sat Launch Vehicle attitude control.

机译:用于纳米卫星运载火箭姿态控制的可变记忆递归神经网络。

获取原文
获取原文并翻译 | 示例

摘要

Launch Vehicles are governed by a complex set of nonlinear and highly coupled differential equations. In general, these equations are linearized about an equilibrium point and a linear controller is designed based upon these linearized dynamics. The linear controller is then applied to the actual system which is, of course, the original nonlinear system. This, in turn, leads to tracking errors and poor performance when the vehicle experiences significant deviation from the equilibrium condition. Also, the linear controller has difficulty handling unknown variations in the system parameters which also give rise to poor performance when applied to the actual vehicle.;A new type of neural network known as a Variable Memory Recurrent Neural Network (VMRNN) has been designed that, when used in conjunction with a linear PID controller, offers improved transient response characteristics when encountering uncertainty in the dynamic model and external disturbances.
机译:运载火箭由一组复杂的非线性和高度耦合的微分方程控制。通常,这些方程围绕平衡点线性化,并且基于这些线性化动力学设计线性控制器。然后将线性控制器应用于实际系统,该系统当然是原始非线性系统。当车辆经历明显偏离平衡条件的情况时,这又导致跟踪误差和较差的性能。此外,线性控制器很难处理系统参数中未知的变化,这在应用于实际车辆时也会导致性能下降。;一种新型的神经网络,称为可变记忆递归神经网络(VMRNN)被设计为与线性PID控制器结合使用时,遇到动态模型的不确定性和外部干扰时,可提供改进的瞬态响应特性。

著录项

  • 作者

    Sclafani, Rodolfo J.;

  • 作者单位

    California State University, Long Beach.;

  • 授予单位 California State University, Long Beach.;
  • 学科 Aerospace engineering.
  • 学位 M.S.
  • 年度 2014
  • 页码 79 p.
  • 总页数 79
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号