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turbomatlabcode
turbo code
encoder/decoder
Matlab code
- 2008-04-09 01:32:46下载
- 积分:1
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stbc11
本程序是Almatiou码字1*1的仿真分析,并有详细描述(It is Almatiou scheme 1*1 simylation analysis)
- 2011-11-17 16:16:47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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PowerAlloc_verss5
A Power Allocation Scheme for MIMO OFDM
Systems
- 2010-08-12 01:12:35下载
- 积分:1
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ddd
在matlab环境下,变程实现了用全局直方图均衡化对图像做反差改善(In matlab environment, the change process to achieve the overall situation with the image histogram equalization contrast to do to improve)
- 2007-12-24 15:17:16下载
- 积分:1
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biaxial-crystal
matlab程序,用来计算非线性光学晶体双轴晶的相位匹配角(for calculation of biaxial crystal phase-matching angles)
- 2020-11-10 21:09:45下载
- 积分:1
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systemtestask
数字下变频的matlab仿真源程序,自动生产图形(Digital Down Converter,matlab source)
- 2009-04-04 09:22:37下载
- 积分:1
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SVMDPCPMSM
使用matlab搭建模型进行电网三相全桥整流闭环控制(Closed-loop control of three-phase full-bridge rectifier in power grid using MATLAB model)
- 2020-06-20 03:40:01下载
- 积分:1
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A程序
差分法求解一维非稳态偏微分方程,两种代码,给定初值和边界值就可求(One dimensional unsteady state solution by difference method)
- 2018-09-16 15:07:29下载
- 积分:1
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riz_data
this is a matlab code for the demo code of the coding technique known as ambtc encoding and decoding
- 2013-01-31 13:17:05下载
- 积分:1