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turboMatlabyanshichengxu
说明： 这是一个Turbo码用Matlab的演示程序，希望对大家有帮助。(This is a Turbo Codes used Matlab demo program, and I hope to be helpful.)
- 2006-04-26 13:37:51下载
- 积分：1
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subroutine
包含五个abaqus UMAT裂纹、蠕变等不同的本构程序(abaqus UMAT)
- 2014-02-28 22:12:59下载
- 积分：1
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daitongsuijicygcdcs
首先产生两个独立的随机过程，并将它们用正交载波进行调整得到带通随机过程的抽样(First generate two independent random process, and to adjust them by using orthogonal carrier band-pass random process of sampling)
- 2010-07-22 16:03:10下载
- 积分：1
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Vibration_Simulation_Using_Matlab_and_ANSYS
说明： 利用MATLAB进行、强度和动力学分析(The use of MATLAB, the intensity and dynamics analysis)
- 2008-11-16 21:08:52下载
- 积分：1
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PID-GAs
PID控制算法和遗传算法混合编程，算出最优解，智能控制部分(PID control algorithm and genetic algorithm hybrid programming, calculate the optimum solution, part of intelligent control)
- 2010-05-06 15:16:36下载
- 积分：1
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signal-and-system_matlab
基于MATLAB的信号表示及运算，实现信号的反转、平移、展缩、相加和相乘。(MATLAB-based signal representation and computation, to achieve signal inversion, translation, exhibition shrinking, adding and multiplying.)
- 2011-04-29 10:50:38下载
- 积分：1
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moving_ball
沿曲线运动的小球演示的matlab示例代码,例子为沿sinx曲线运动(matlab sample code of moving along the curve ball demo , the example is curved along the sinx
)
- 2010-05-13 11:24:15下载
- 积分：1
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VelestPC_WindowsFreddy
地球物理学一维速度结构反演程序Velest,win版(a program for inverting the minimum 1-D velocity model in Geophysis.)
- 2014-11-25 08:48:52下载
- 积分：1
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music
三维子空间music
方位角定义为与x轴的夹角，俯仰角定义为与z轴之间的夹角,俯仰角在0—90度，方位角0-180.
分辨不相关的两个角成功概率/估计偏差与SNR
最后进行谱峰搜索(Dimensional subspace music is defined as the angle and azimuth angle, pitch angle is defined as the x-axis and z-axis between the pitch angle of 0-90 degrees in azimuth 0-180 distinguish two unrelated probability of success angle/estimation error and SNR Finally peak search)
- 2015-04-12 15:29:36下载
- 积分：1
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03607_28
DFT进行频谱分析时的三种现象
1、混叠：对连续信号采样，要求连续信号是带限的，采样频率要足够高。Fs应满足Nyquist采样定理才不产生混叠。
采样前加低通滤波器防混叠
2、频谱泄漏：DFT对时域信号进行了截断（相当于采样信号乘了一个窗函数），时域的乘积相当于频域卷积，改变了原信号频谱。
改用其他窗函数（非矩形）改善泄漏。
3、栅栏现象：DFT 只给出了频谱在采样点上的取值，采样点间的频谱内容丢失。(DFT spectrum analysis of a three phenomena, aliasing : continuous signal sampling, requiring continuous signal is band-limited, the sampling frequency should be high enough. Fs meet the Nyquist Sampling Theorem would not have aliasing. Sampling former low-pass filter plus anti-aliasing 2, spectrum leakage : DFT right time domain signal a disconnect (equivalent to a sampling signal by a window function). time domain is equivalent to the product of frequency-domain convolution, changes in the spectrum of the original signal. Window functions to switch to other (non-rectangular) to improve leakage. 3, fenced phenomenon : DFT spectrum is given only at the sampling point value, sampling points of the spectrum as lost.)
- 2007-05-08 16:22:17下载
- 积分：1
