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QPSK
产生宽带QPSK信号,并通过rrc滤波,用于检验发射通路的EVM等指标(Produce wideband QPSK signals, and by rrc filter, used to test the emission path of EVM and other indicators)
- 2010-06-12 17:23:17下载
- 积分:1
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561-360
Common Mode Problematic of Solar Inverter Systems
- 2011-01-15 02:40:17下载
- 积分:1
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MonApplication
Wireless sensor network annimator
- 2012-05-10 20:19:40下载
- 积分:1
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Texture-Segmentation
Matlab code for texture segmentation
- 2014-11-01 08:55:39下载
- 积分:1
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snake_demo
Snake Algorithem,Snake Method Example
- 2010-06-18 13:28:47下载
- 积分:1
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gen
Generate mesh for finite element
- 2010-08-28 00:07:06下载
- 积分:1
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backpro-standard
backprogation step by step (single layer)
- 2009-03-27 06:49:28下载
- 积分:1
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AFAFAFAF
协作通信中的解码转发程序,包括卷积编解码,8PSK调制(Cooperative communication in decode-and-forward procedure)
- 2021-04-24 15:08:47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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MATLAB-control-Engineering
Control Engineering Programs Using MATLAB
- 2013-04-03 22:42:47下载
- 积分:1