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OFDM_cognitive
博士学位论文，详细探讨基于OFDM的认知无线电系统信道及频谱感知(Channel, spectrum, and waveform awareness in OFDM-based cognitive radio systems.pdf)
- 2010-03-12 14:00:19下载
- 积分：1
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paper688
随着并联机构学理论的日益成熟，并联摇摆台以其大刚度、高精度和重载等优点，广泛应用于机械、航海和航天等领域。其中，以车辆模拟台的应用最为广泛。车辆在行驶过程中由于受到路况等扰动因素的影响，会产生横摇、纵倾、转艏、前冲、横移和升降共6种位姿的运动，而通过六自由摇摆台能将车辆的这些运动真实的再现出来。
本文以项目——六自由度重型摇摆台的研制为依托，在对国内外六自由度摇摆台的研究现状做了比较深入、系统分析的基础上，对车辆重型摇摆台与负载锁定结构进行了分析优化，主要的研究内容如下：
首先，对六自由度重型摇摆台进行运动学建模，分析、优化机构在六种独立姿态及部分耦合位姿情况下支撑杆的运动范围，最终确定了支撑杆合理的转角空间和上下铰链座的结构，提高了机构的运动学、动力学性能。
(With the development of theory of parallel mechanism, parallel plat quickly enters the international market for high stiffness、high precision and heavy load, which is widely used in mechanical、navigation and aviation, etc. Among these parallel plats, the vehicle simulator is the most widely used. Due to the disturbance factors of ups and downs of the different roads, vehicle has 6 degrees of freedom during its traveling movements, such as rolling、pitching、yawing、surging、swaying and heaving that can be simulated in the use of 6-DOF platform.
Based on the project of heavy platform, this paper optimizes the platform and the load locking structure after the in-depth and systematic analysis of 6-DOF parallel plat at home and abroad, the main research contents are as follows:
Firstly, this paper establish the kinematic modeling that is used to analyze the rotating range of the axis belonging to the supporting pole in many traveling conditions, such as one of six movements indepe)
- 2012-09-08 17:47:11下载
- 积分：1
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Sync generator
sync generator pscad
- 2017-11-05 22:58:26下载
- 积分：1
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LANDSLIDE-HAZARD-AND-RISK-ASSESSMENT
大牛Fausto Guzzetti的博士论文，研究滑坡的都知道的著名学者，对相关研究者有很好的指导作用(LANDSLIDE HAZARD AND RISK ASSESSMENT)
- 2015-02-11 10:03:47下载
- 积分：1
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pid
本文说明了PID参数自整定的意义，基于继电反馈PID参数整定的原理，并将基于继电反馈PID参数整定方法在MATLAB环境中进行仿真，选择一种生产过程进行应用分析。选择51单片机，设计出计算机控制系统的主要电路结构(This paper describes the self-tuning PID parameters of the significance, based on relay feedback principle of PID parameter tuning, and based on relay feedback tuning method of PID parameters in the MATLAB simulation environment, select the application of a production process. Select 51 microcontroller, a computer control system design the main circuit structure)
- 2011-05-16 16:46:08下载
- 积分：1
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MAX038suoyouziliao
收集了几乎全部的高频方波三角波正弦波发生器MAX038及其各种应用论文,对设计多波形信号发生器级有帮助,欢迎下载.(Collected almost all the high-frequency square wave triangle wave sine wave generator and its various applications MAX038 papers on the design Multi-Signal Generator-class help are welcome to download.)
- 2009-11-18 20:06:36下载
- 积分：1
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dingcan
用户分为普通用户和管理员
普通用户只有订餐、发送订单、修改个人信息的权利
管理员拥有普通用户的所有权利 以及增删改查的权利、对货物的增删改查
对订单的查看、删除、处理等、以及对用户的管理
(Users are divided into ordinary users and administrators ordinary users only ordering, send orders, the right to modify personal information Administrators have all the rights of the ordinary users as well as the right to CRUD the CRUD check goods orders view, delete, processing etc., as well as the management of the user' s)
- 2013-02-27 12:05:50下载
- 积分：1
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10060TV
模拟和数字无线电视的两用中频电路设计参考电路(脛 拢 脛芒 潞 脥脢媒 脳 脰脦脼脧脽渭莽脢脫渭脛脕 陆 脫脙脰脨脝渭渭莽脗 脡猫 录 脝 虏 脦 驴 录 渭莽脗)
- 2008-08-22 14:51:04下载
- 积分：1
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DIANSAI
有关参加全国大学生电子设计竞赛培训的一些情况介绍(Some related to take part in the national undergraduate electronic design contest training was introduced
)
- 2013-08-11 11:49:44下载
- 积分：1
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Flight-control-Law
介绍了飞机纵向和横航向控制律设计，给出了设计过程，设计细节作了详细论述(the control law for logititude and direction is introduced , the design process is gived,the design details is demostrated.)
- 2020-10-12 22:47:32下载
- 积分：1
