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OFDM-MATLAB
这里面有两个程序,两个都是采用4QAM调制。不过个人觉得第一个更容易懂,因为写的很有条理。我改的那个程序就是根据这个来的。
不过在这里面有个问题就是信道系数只能是由高到低,大家可以试试,改成[0.227 0.46 0.688 0.46 0.227]这个是老师给我的仿真中常用的信道系数,这个成为归一化信道,就是系数平方和为1.
第二个程序没有涉及到信道系数,但是这个程序当中,在128个子载波中,前后有32个空载波,这个在OFDM中也是经常用的,这样可以降低误码率。
(And there are two programs, two are based on 4QAM modulation. But personally feel that the first is easier, because the writing is organized. I changed that procedure is based on the past. However, there is a problem in that there is only channel coefficients from high to low, we can try and change into [0.227 0.46 0.688 0.46 0.227] This is the teacher gave me the simulation channel coefficient commonly used, this became normalized channel, is coefficient of the square and is 1. The second program is not related to channel coefficients, but this program which, in the 128 sub-carriers, the before and after the 32 air carriers, the in OFDM is also often used, which can reduce the error rate.)
- 2010-10-09 17:19:06下载
- 积分:1
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cs_cvx
压缩传感,压缩感知,压缩采样,稀疏表达,稀疏表示,的入门例子(compressive sensing, compressed sensing)
- 2009-12-13 09:19:56下载
- 积分:1
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work
matlab中的循环卷积,DFT,DCT,它在数字信号处理方面有很大地作用(circular convolution in matlab, digital signal processing, it has greatly effect)
- 2011-10-19 19:54:15下载
- 积分:1
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cavity-MAC
The Driven Cavity Problem by the MAC Method
- 2013-05-03 18:33:32下载
- 积分:1
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PVQF-droopcontrol
(1>分析低压微电网中逆变器输出阻抗特性,采用了虚拟阻抗的控制方法对逆变器输出阻抗进行构造,又从微电网本身特点考虑,构造逆变器的输出阻抗为阻性,使得Pv/QF的反下垂控制方法可以被合理使用。
(2>对逆变器功率外环进行小信号建模,分析当输出阻抗性质发生变化时系统(1 Analysis of low voltage microgrid inverter output impedance characteristics, the control method of virtual impedance of the structure on the output impedance of the inverter, and the characteristics of micro grid is considered, the output impedance of inverter structure for resistance, the Pv/QF control method of anti sag can be reasonable use.
2 of the inverter power outer loop small signal modeling, analysis the characteristics of output impedance changes the system)
- 2020-11-24 16:39:34下载
- 积分:1
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Tcodes
Some linear algebra code in matlab
- 2012-08-24 18:41:12下载
- 积分:1
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IEEE802-15-08-0416-02-0006
这是关于802.15.6的信道模型的一篇标准,很好很权威的。(This is about the 802.15.6 channel model of a standard, very good authority.)
- 2011-12-01 21:06:57下载
- 积分:1
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zheshelvxubu
用matlab计算一维光子晶体的折射率虚部(Using matlab calculate one-dimensional photonic crystals imaginary part of refractive index)
- 2009-09-28 09:48:30下载
- 积分:1
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kalmanfilter
说明: 一种改进的自适应滤波器的状态估计,效果非常之好,是用MATLAB编写的,直接在matlab下运行就可以看到完美的滤波效果,自适应算法是sage—husa算法,较传统的滤波器有很大提高(An improved adaptive filter state estimation, the effect is definitely a good thing, is to use MATLAB prepared directly in matlab run will be able to see the effect of a perfect filter, adaptive algorithm is sage-husa algorithm, a more traditional filter machine has greatly improved)
- 2020-12-10 20:59:20下载
- 积分:1
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SimTools05
说明: 用matlab做的Frequency domain INterferomEter Simulation SoftwarE,在国外网站下的,还在研究中,不会用,有会用的回复我(Using matlab to do Frequency domain INterferomEter Simulation SoftwarE, in foreign countries under the site, still studying it, will not use, it will use the back I)
- 2008-12-08 17:07:40下载
- 积分:1