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BeamStrucure
三节点板多边界条件自由振动和静力分析,能够自动生成模型。(Three-node shell boundary conditions free vibration and static analysis, can automatically generate the model.)
- 2009-11-02 14:30:22下载
- 积分:1
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xinxinyincang
基于抗截图的数字水印MATLAB实现
绝对可用(Digital watermarking based on anti Screenshot available MATLAB to achieve absolute)
- 2011-01-02 20:16:14下载
- 积分:1
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chap3
matlab图像处理实例详解第三章源码程序,推荐大家一起学习,很好很实用。(Detailed examples matlab image processing Chapter III source program, recommend everyone to learn, very very useful.)
- 2013-11-07 18:01:10下载
- 积分:1
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sample
The matlab program is effective to be used for fringe processing. It contours strain distribution using an interferogram.
- 2009-05-26 16:25:10下载
- 积分:1
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zvs_qrc_buck
零电压开关准谐振电路(ZVS_QRC_Buck)SIMULINK仿真模型(Zero Voltage Switch Quasi- Resonant Circuit (ZVS_QRC_Buck) SIMULINK Simulation Model)
- 2021-04-09 21:28:59下载
- 积分:1
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zq1
说明: 太阳黑子的时间序列用最小二乘法模型定阶的C语言程序(Sunspot time series model using the least square method to determine the order of the C language program)
- 2010-05-03 14:27:11下载
- 积分:1
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PID_Increase
增量式PID控制算法Matlab仿真程序
设一被控对象G(s)=50/(0.125s^2+7s),用增量式PID控制算法编写仿真程序(输入分别为单位阶跃、正弦信号,采样时间为1ms,控制器输出限幅:[-5,5],仿真曲线包括系统输出及误差曲线,并加上注释、图例)。(Incremental PID control algorithm Matlab simulation program to set up a controlled object G (s) = 50/(0.125s ^ 2+7s), with incremental PID control algorithm simulation program written (unit step input, respectively, sinusoidal signal sampling time is 1ms, the controller output limiter: [-5,5], including simulation system output and error curve curves, plus notes, legend).)
- 2014-01-09 20:54:10下载
- 积分:1
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ECG
应对心电图设备中的信号采集挑战,TI的方案介绍2009(ECG equipment to deal with signal acquisition challenges, TI introduced the program in 2009)
- 2009-01-08 20:12:40下载
- 积分:1
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agg_np48
pst power system toolbox
- 2013-11-12 07:28:02下载
- 积分:1
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适用于捷联惯导系统(SINS)初始对准的新算法self-alignment
在运载体运动情况下,提出了一种适用于捷联惯导系统(SINS)初始对准的新算法,该算法以惯性空
间为过渡参考基准,即建立了初始时刻惯性坐标系(i0系)和初始时刻捷联惯组惯性坐标系(ib0系)两个惯性坐标
系。将捷联惯组坐标系(b系)与导航坐标系(n系)之间的初始对准姿态矩阵的实现分解为三步骤:(1)通过地理
位置和初始对准时间求解i0系至n系的变换矩阵 (2)通过惯导比力方程变形,引入测速仪速度辅助,求解从ib0
系至i0系的常值变换矩阵 (3)使用姿态更新算法实时计算b相对于ib0系的变换矩阵。最后,载车运动环境下的
初始对准试验结果表明航向角对准精度达到了0.1b(1R)。
(On the moving base, a new initial alignment algorithm for strapdown inertial navigation system
(SINS) is proposed. In this algorithm, two special inertial frames, the initia-l time inertial frame (i0frame) and
the initia-l time SINS body inertial frame (ib0frame), are defined and are selected as transition reference frames.
The calculation of initial alignment direction cosine matrix (DCM) between SINS body frame (bframe) and nav-
igation reference frame (nframe) is expanded into three parts: (1) the DCM betweeni0frame andnframe is
easily obtained via local geographical coordinates and initial alignment time (2) by expressing SINS specific
force equation inbframe and by the aid of external velocity log, the constant DCM fromib0frame toi0frame is
achieved (3) attitude updating using gyro samples gets the DCM betweenbframe andib0frame. In the end,
some vehicular tests are carried out on the moving base and the accuracy of azimuth reaches about 0.1b(1R).
)
- 2015-08-23 07:58:59下载
- 积分:1