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71402020-M701_Camera-YHM701F_03.1(GC0329)
Camera GC0329 0.3M FPC EFL=1.82mm
- 2013-08-01 19:08:56下载
- 积分：1
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wirelessPower
WPC协议规定的无线充电的基本原理与设计规范，是对无线电力传输爱好者的必备资料(WPC agreement provides for the basic principles of wireless charging and design specifications, is essential for wireless power transmission enthusiasts information)
- 2011-11-28 09:32:07下载
- 积分：1
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guangxingtianwen
哈尔滨工业大学硕士论文，关于惯性/天文组合导航方面的，有较好的参考价值(Harbin Institute of Technology master' s thesis on the inertial/navigation aspects of astronomy, a good reference value)
- 2011-01-10 15:08:13下载
- 积分：1
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1383
：介绍了一种基于数字信号处理器（DSP）的移相调频（Phase-Shifted and Frequency-Varied，PSFV）PWM控制
逆变电源，给出了主电路拓扑结构，分析了其控制原理并设计了其控制程序流程图。新颖的PSFV 控制能够实现输出
电压90％的调整率，输出电流波动小于单纯移相调功PWM方式，并在轻载时保持连续。功率开关器件零电压零电流
通断（Zero-Voltage-Zero-Current Switching，ZVZCS）软开关的实现，有利于进一步提高开关频率和降低开关损耗。采用
高性能的专用DSP 芯片TMS320F2812 实现了系统的数字控制，满足了系统控制的灵活性和实时性，减小了系统的
体积和生产成本。仿真分析和实验结果证明了此控制模式的可行性与合理性。()
- 2008-03-28 20:26:19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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ed2_prac5_conta_finfin
program in hdl that this open mind in digital resources
- 2009-06-27 08:08:08下载
- 积分：1
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IPM
改程序是郭磊，基于定向二维插值的逆投影变换方法论文中对应的程序，对于学习该篇论文的朋友有一定的帮助。(Guo Lei reform program is based on inverse projection transform paper orientation corresponding two-dimensional interpolation program for learning the papers friends will certainly help.)
- 2020-09-26 23:17:46下载
- 积分：1
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vm
说明： Owing to the broad application value of audio
watermarking in remote transmission and mobile
extraction, it is very important to study watermarking
approaches against A/D and D/A conversion. Based
on wavelet decomposition and cepstrum technology,
an audio watermarking algorithm is proposed where
the low-frequency wavelet coefficients are chosen for
cepstrum transforming. Then, the obtained cepstrum
data shows stable for watermark hiding by the
methods of edging data cutting and statistical mean
modification. The synchronization is not required in
the algorithm. Experimental results show that the
proposed algorithm can resist on the attack of A/D
and D/A successfully with features of large capacity
and zero bit error. It will be helpful for the mobile
audio in secure broadcast and management in the
- 2010-02-05 01:56:27下载
- 积分：1
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71402020-M701_Camera-YHM701F_03.1(GC0329)
Camera GC0329 0.3M FPC EFL=1.82mm
- 2013-08-01 19:08:56下载
- 积分：1
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FreePortfolioOptimization
数据流图定义 DFD = Data Flow Diagram,数据流图 数据流图（Data Flow Diagram，DFD）是一种能全面地描述信息系统逻辑模型的主要工具，它可以用少...共20次编辑(Definition of data flow diagram DFD = Data Flow Diagram, data flow diagram data flow diagram (Data Flow Diagram, DFD) is an information system can fully describe a logical model of the main tools, which can be used 20 times less ... Edit)
- 2011-08-21 08:18:21下载
- 积分：1
