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LMS
自适应消噪源码，利用LMS算法和matlab仿真工具去除随机噪声(Adaptive noise source, using LMS algorithm and simulation tools to remove the random noise matlab)
- 2010-07-22 15:33:10下载
- 积分：1
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inc2
this matlab is used widely there
- 2010-11-16 21:18:57下载
- 积分：1
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MATLAB_LMS1
自适应滤波器LMS算法的误差性能曲面和等高线，并在等高线上绘出最陡下降法和LMS迭代的轨迹曲线，配合数字信号处理2课程的学习(LMS adaptive filter algorithm for the error performance surface and contour lines and contour line drawn in the steepest descent method and the LMS iterative trajectory curve, with 2 digital signal processing courses)
- 2008-04-25 09:51:26下载
- 积分：1
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PID
灰色PID控制。灰色系统理论，PID控制。是灰色模型GM进行定量预测(Grey PID control. Grey system theory, a PID control. Grey model GM quantitative prediction)
- 2012-04-09 20:35:50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
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start
用七元线形天线阵（ULA）
已知：信号中心波长为2,天线阵元的间距为1米,快拍数为2000，空中有四个
源信号,假设它们的频率：0.015, 0.05, 0.02, 0.035
四个源信号的方向分别为：pi/4 pi/3 pi/6 3pi/4
求：
1）在不加入噪声的情况下,画出传统波束形成法、Bartlett波束
形成法、Capon波束形成法的空间谱图；
2）在加入高斯白噪声的情况下,假设信噪比为10dB，画出传统波束
形成法、Bartlett波束形成法、Capon波束形成法的空间谱图。(7-element linear antenna array (ULA)
Known: the signal center wavelength is 2, the antenna element spacing of 1 m, the number of snapshots for 2000, the air there are four
Source signal, assuming that their frequency: 0.015, 0.05, 0.02, 0.035
The direction of the four source signals: pi/4 pi/3 pi/6 3pi/4
Requirements:
1) not to join the noise, to draw the traditional beam-forming method, Bartlett, beam
Formation method, Capon beamforming method of the space spectrum
2) by adding Gaussian white noise, assuming that the SNR is 10dB, to draw the traditional beam
Formation method, Bartlett, beamforming, Capon beamforming method of the space spectrum.)
- 2012-05-02 16:26:54下载
- 积分：1
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yibudianjishiliangkongzhi
异步电动机的矢量控制仿真，用simulink做的，里面还有一个讲解用的PPT。(Induction motor vector control simulation, simulink do, there is also a narrator with the PPT.)
- 2013-05-20 09:14:14下载
- 积分：1
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FDTD_TE
在MATLAB环境下，用FDTD方法，用高斯点源仿真TE波在空间的传输。(In the MATLAB environment, using FDTD method, the Gaussian point source simulation of the transmission of TE waves in space.)
- 2010-07-10 15:12:02下载
- 积分：1
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test
一个简单的OFDM程序，有IFFT/FFT，QPSK调制解调，加入了高斯噪声，加入循环前缀。并且每行程序都有的详细注释，简单易懂。扩展性比较强，可以改写成自己的代码。(A simple OFDM procedures, there are IFFT/FFT, QPSK modulation and demodulation, joined the Gauss noise, adding a cyclic prefix. And each line of the program are detailed notes, easy to understand. Expansion is relatively strong, can be rewritten into their own code.)
- 2020-07-03 00:00:01下载
- 积分：1
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filter
很多学者梦寐以求的MATLAB带界面的滤波程序(Many scholars dream of MATLAB with the interface of the filtering process)
- 2010-06-30 11:00:19下载
- 积分：1
