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2400pointdelay
瑞利信道下的多普勒时延的简单仿真。matlab源码。有图。(Simple simulation of the Rayleigh channel, the Doppler delay. matlab source code. There are Fig.)
- 2021-04-21 15:18:49下载
- 积分：1
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Matlab-Propagation-Code
超短激光脉冲传输：展宽、色散、自自相位调制、倍频、FROG，超短脉冲测量(Ultrashort laser pulse transmission: broadening, dispersion, since the self-phase modulation, frequency, FROG, ultra-short pulse measurement)
- 2021-03-21 18:49:16下载
- 积分：1
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mrc_ber
Bit error rate of MRC
- 2013-09-19 20:29:32下载
- 积分：1
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DSPII_USTC_01
传统的宽带信号中抑制正弦干扰的方法是采用陷波器(notch filter),为此需要精确知道干扰正弦的频率.然而当干扰正弦频率是缓慢变化时,且选频率特性要求十分尖锐时,则最好采用自适应噪声抵消的方法.下图是用一个二阶FIR的LMS自适应滤波器消除正弦干扰的一个方案。该代码实现了以下功能：
1) 借助MATLAB画出了滤波器的误差性能曲面和误差性能曲面的等值曲线；
2） 给出了最陡下降法以及LMS算法的计算公式；
3） 用MATLAB产生了方差为0.05, 均值为0白噪音S(n)，并画出某次采样得到的波形；
4） 根据 2）中的公式，并利用 3）中产生的S(n)，在 1）中的误差性能曲面的等值曲线上叠加画出了采用最陡下降法以及LMS法时H(n)的在叠代过程中的轨迹曲线；
5）用MATLAB计算并画出了LMS法时误差随时间n的变化曲线（对应S(n)的某一次的一次实现）和e(n)波形；
6）在 1）中的误差性能曲面的等值曲线上，叠加画出采用LMS法得到的100次实验中的H(n)的平均值的轨迹曲线；
7）最终对结果进行了分析，具体见压缩包的word文档。
(Wideband signal in the conventional sinusoidal interference suppression method is the use notch filter (notch filter), this requires precise knowledge of the frequency of a sinusoidal interference . However, when the interference frequency sinusoidal changes slowly , and the selected frequency characteristic requirements are very sharp , then best use of adaptive noise cancellation method . following figure is a second-order FIR LMS adaptive filter to eliminate a program sinusoidal interference . The code implements the following functions:
A ) draw with MATLAB error performance of the filter surface and the surface contour error performance curve
2 ) gives the steepest descent method and the LMS algorithm formula
3 ) generated using MATLAB variance of 0.05 with a mean of 0 white noise S (n), and draw a particular sampling waveform
4 ) based on 2 ) of the formula , and use 3 ) generated in S (n), in a ) the error performance curves superimposed on the surface contour pl)
- 2013-11-06 13:12:36下载
- 积分：1
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youxianchafen
基于matlab的有限差分法程序，计算无限长金属槽的槽内电压(Based on the finite difference method matlab program to calculate the tank voltage infinitely long metal trough)
- 2013-12-23 09:23:51下载
- 积分：1
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estimationofsignals
说明： 信号检测与估计中文书信号检测与估计中文书(the book of estimation of signal in chinese)
- 2010-04-20 14:05:38下载
- 积分：1
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dctxxyc
基于DCT的图像信息隐藏于提取，隐藏位置为随机数列确定(DCT-based image information hiding in the extraction, hidden location to determine a random series)
- 2021-04-06 09:39:02下载
- 积分：1
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PLL
PLL锁相环的搭建，通过坐标变换实现锁相(PLL Phase-Locked Loop)
- 2013-12-07 15:14:23下载
- 积分：1
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voice-signal-analysis
基于MATLAB语音信号采集与分析加上高频噪声并去噪声源程序。(Based on MATLAB voice signal acquisition and analysis with high-frequency noise to the noise source.)
- 2013-05-11 11:15:06下载
- 积分：1
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example1
鱼群算法在多目标寻优问题上的应用，注释详细，代码初学者必备。(Fish swarm algorithm in multi-objective optimization problem, the application of detailed notes, code beginners.)
- 2017-11-27 10:54:41下载
- 积分：1
