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Pulse-Width Pulse-Frequency Based Optimal Controller Design for Kinetic kill Vehicle Attitude Tracking Control

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Applied Mathematics 2011年第5期2卷 565-574页

作者： Xingyuan Xu Yuanli Cai 不详

The attitude control problem of the kinetic kill vehicle is studied in this work. A new mathematical model of the kinetic kill vehicle is proposed, the linear quadratic regulator technique is used to design the optimal attitude controller, and the pulse-width pulse-frequency modulator is used to shape the continuous control command to pulse or on-off signals to meet the requirements of the reaction thrusters. The methods to select the appropriate parameters of pulse-width pulse-frequency are presented in detail. Numerical simulations show that the performance of the LQR/PWPF approach can achieve good control performance such as pseudo-linear operation, high accuracy, and fast enough tracking speed.

关键词： Attitude Control Kinetic kill Vehicle Linear Quadratic Pulse-Width Pulse-Frequency

Study on Differences of Family Education in America and China:Fromthe Perspective of To kill a Mockingbird

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海外英语 2014年第6X期 186-187页

作者：李鹏昆明学院云南昆明650214

In the novel of To kill a Mockingbird,the theme of family education in America has been discussed through the whole *** paper will compare the differences of family education between Americans and Chinese based on this novel and analyze the reasons and the influences as *** conclusion is that there is no better or worse family education model,in fact,the key is to find out the most suitable model for the benefit of children according to their different situations.

关键词： Family Education To kill a Mockingbird Education M

Monster,Madman or Victim? The Judgment of Maycomb Society and the Mystery of Boo Radley from the Book To kill A Mockingbird

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海外英语 2018年第19期 185-186,190页

作者：钟茵婷美国西部哈马尔世界联合学院

To kill A Mockingbird is a novel written by Harper Lee. In the novel, Lee reveals the situation happened in Maycomb city and depicts Arthur(Boo) Radley, a mysterious hermit who is recognized as a madman by citizens. My paper is going to argue for Boo that he is not a madman, being locked out by his father; instead, he chooses to be a hermit due to the awfulness of the city:its prevalent gossip, its racial inequality and its lawless policies.

关键词： To kill A Mockingbird Boo Radley Maycomb Society Gossip racial inequality lawless policies

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kill构建企业防病毒解决方案

计算机时代 2003年第10期 17-18页

作者：余宏伟姚洲鹏浙江日报报业集团信息技术处浙江杭州310039

本文介绍如何采用kill安全胄甲构筑企业级病毒防治方案。

关键词：计算机病毒 “爱虫”病毒 “红色代码”病毒 “尼姆达”病毒 kill 防治

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极品服装 dress to kill

计算机光盘软件与应用（COMPUTER ARTS数码艺术） 2006年第3期 54-59页

作者： ADAM BENTON

从垫子到服装．织品确实能够为3D图片完成这一最后的润饰。运用Cinema 4D

关键词：服装 kill to Cinema 图片 3D

评To kill A Mockingbird的两种译本

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九江师专学报 1996年第3期15卷 67-72页

作者：钟维尧九江师专外语系

To kill A Moekingbird 是美国女作家哈拍· 李( HarperLee ) 的处女作,也是她的成名作,有自《飘》问世以来描写南方生活的最佳小说之誉.1960年出版后,轰动美国,评论界一片赞声,荣获了包括普利策奖在内的四项文学奖.

关键词：哈珀·李书评美国小说译本《To kill A Mockingbird》

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kill优盘——GB容量存储卡导购