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8QAM
利用Matlab仿真软件,完成如图1所示的一个基本的数字通信系统。信号源产生0、1等概分布的随机信号,映射到16QAM的星座图上,同时一路信号已经被分成了实部和虚部,后边的处理建立在这两路信号的基础上。实部、虚部信号分别经过平方根升余弦滤波器,再加入高斯白噪声,然后通过匹配滤波器(平方根升余弦滤波器)。最后经过采样,判决,得到0、1信号,同原信号进行比较,给出16QAM数字系统的误码。(Using Matlab simulation software, as shown in Figure 1 to complete a basic digital communications systems. Signal source such as arise over the distribution of 0,1 random signal, is mapped to 16QAM constellation diagram, at the same time all the way the signal has been divided into real and imaginary parts, behind the deal with the establishment of these two signals in the basis. Real part, imaginary part of the signal, respectively, after a square root raised cosine filter, then add white Gaussian noise, and then through the matched filter (square root raised cosine filter). Finally, after sampling, the verdict has been 0,1 signal, to compare with the original signal is given 16QAM digital system error.)
- 2007-10-22 15:57:50下载
- 积分:1
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LMSalgorithmwiththeadaptiveequalizer
说明: 用LMS算法实现这个自适应均衡器,画出一次实验的误差平方的收敛曲线,给出最后设计滤波器系数。一次实验的训练序列长度为500。进行20次独立实验,画出误差平方的收敛曲线。(LMS algorithm with the adaptive equalizer, draw a square of experimental error convergence curves of the final design of the filter coefficients. An experiment of training sequence length is 500. To 20 independent experiments, to draw square error convergence curves.)
- 2010-04-28 15:05:55下载
- 积分:1
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多自由度地震
简单的多自由度地震反应EI_Centro波,采用威尔逊逐步积分法(A simple multi degree of freedom seismic response EI_Centro wave using Wilson stepwise integral method)
- 2020-08-16 16:48:23下载
- 积分:1
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Decoder
说明: 通用汉明码译码器,并加入容错处理,MATLAB源程序(General Hamming code decoder, and add fault tolerance, MATLAB source code)
- 2010-04-24 20:33:10下载
- 积分:1
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Fourth-Order-Partial-Differential-
source code Fourth Order Partial Differential Equations for Noise Removal,
- 2012-05-17 02:56:01下载
- 积分:1
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DPLL_REASERCH
本课题研制了一种宽频带的数字锁相放大器,可以完成自动增益和相位
可调整,最长积分时间为100s,适合于频率从10Hz到10kHz,幅值从100nV
到10mV的微弱正弦信号检测。测量结果表明,当采样点数N大于8192时,
(This project developed a wideband digital lock-in amplifier, can be completed automatically adjustable gain and phase, the longest integration time of 100s, suitable for the frequency range from 10Hz to 10kHz, amplitude from 100nV to 10mV of weak sine signal detection. The measurement results show that, when the sampling point number N is greater than 8192 hours,)
- 2013-02-26 14:10:26下载
- 积分:1
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zishiyinglvbo
自适应滤波算法的应用,及其工作原理进行了详细的描述(Adaptive filtering applications in information fusion and methods)
- 2013-05-03 21:24:31下载
- 积分:1
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zuizhong1
HHT算法实现emd分解,及希尔伯特黄变换,实现瞬时频率瞬时幅值,边际谱的提取。(The HHT algorithm emd decomposition and Hilbert-Huang transform to achieve the instantaneous amplitude of the instantaneous frequency marginal spectrum extraction.)
- 2020-09-18 14:27:55下载
- 积分:1
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svmTime-series-prediction
matlab环境下的支持向量机的时间序列预测(Time Series Prediction of Support Vector Machine in Matlab Environment)
- 2016-10-23 23:05:55下载
- 积分:1
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toolkit2
这是一个非常好的关于kit的matlab工具箱。(This is a matlab toolbox of kit.)
- 2010-01-24 13:03:42下载
- 积分:1