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puma3dfiles
The modeling and attitude stabilization control problems of a four-rotor vertical takeoff and landing unmanned air vehicle (UAV)
known as the quadrotor are investigated.The quadrotor’s attitude is represented by the unit quaternion rather than Euler angles to
avoid singularity problem. Taking dynamical behavior of motors into consideration and ignoring aerodynamic effect, a nonlinear
controller is developed to stabilize the attitude.The control design is accomplished by using backstepping control technique.The
proposed control law is based on the compensation for the Coriolis and gyroscope torques. Applying Lyapunov stability analysis
proves that the closed-loop attitude system is asymptotic stable. Moreover, the controller can guarantee that all the states of the
system are uniformly ultimately bounded in the presence of external disturbance torque.The effectiveness of the proposed control
approach is analytically authenticated and also validated via simulation study.
- 2014-09-04 19:00:04下载
- 积分：1
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SOLAR-PV
This paper focuses on a Matlab/SIMULINK model of a photovoltaic cell. This model is based on mathematical equations and is described through an equivalent circuit including a photocurrent source, a diode, a series resistor and a shunt resistor. The developed model allows the prediction of PV cell behaviour under different physical and environmental parameters. The model can also be used to extract the physical parameters for a given solar PV cell as a function of temperature and solar radiation. In addition, this study outlines the working principle of PV module as well as PV array. In order to validate the developed model, an experimental test bench was built and the obtained results exhibited a good agreement with the simulation ones.
- 2014-10-21 14:26:57下载
- 积分：1
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qam
16qam，成型滤波器，加入载波，高斯噪声，调制解调多个星座图等
(16qam, shaping filter, adding the carrier, Gaussian noise, such as modem over Constellation)
- 2011-05-09 15:41:20下载
- 积分：1
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Color-Reproduction-from-Noisy-CFA-Data-of-Single-
Color Reproduction from Noisy CFA Data of Single Sensor Digital Cameras
- 2013-03-11 23:43:21下载
- 积分：1
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reconstruction-of-source-signals
利用小波变换极大值，重建源信号。包含主程序和三段子功能函数，使用小波变换进行六级分解，求出模极大值，并利用这些极大值重建源信号。(Using the wavelet transform maximum and reconstruction of source signals.Contains the main program and three jokes functions, six levels of decomposition using the wavelet transform and modulus maxima, and take advantage of these great value reconstruction of source signals.)
- 2013-12-24 15:45:30下载
- 积分：1
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periodograma
Plot spectrum in specific form
- 2015-04-10 11:37:01下载
- 积分：1
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QRS1
心电信号识别算法，采用阈值法检测心电QRs波群(ECG recognition algorithm, the detection threshold QRS ECG QRs)
- 2009-05-09 20:48:24下载
- 积分：1
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SmithChart
matlab画史密斯圆图的程序，可以画出基本的圆图，方便使用(this is a code file of drawing Smith Chart by Matlab, a basic chart can be drawn and it s fit for use.)
- 2012-04-13 18:55:03下载
- 积分：1
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MATLAB_jiaocheng
M AT L A B是一个可视化的计算程序，被广泛地使用于从个人计算机到超级计算机范围内
的各种计算机上。
M AT L A B包括命令控制、可编程，有上百个预先定义好的命令和函数。这些函数能通过
用户自定义函数进一步扩展。(M AT LAB is a visual computing program, and is widely used in a variety of computers from personal computers to supercomputers within. M AT LAB, including command and control, programmable, with hundreds of pre-defined commands and functions. Further expansion of these functions through user-defined functions.)
- 2012-11-19 13:31:33下载
- 积分：1
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spfx
时频分析书籍，语言比较通俗易懂，写的不错(Time-frequency analysis theory and application)
- 2009-03-30 14:17:41下载
- 积分：1
