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rgbquadtreehojoon
This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious.
(This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious.
)
- 2009-09-17 14:52:16下载
- 积分：1
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FuzzyPID
模糊PID控制源程序.采样时间为1ms,在第300个采样时间时控制器输出加1.0的干扰.(Fuzzy PID control of the source code. Sampling time of 1ms, at No. 300 when the controller output sampling time add 1.0 interference.)
- 2009-03-24 18:21:11下载
- 积分：1
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IIR
用巴特沃斯逼近以及双线性实现数字滤波器的设计~~！！(iir)
- 2009-11-21 11:19:00下载
- 积分：1
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bitallocate
说明： 通信系统关键技术仿真--比特加载算法
函数完成在给定子信道信息、误码率和码元速率的前提下子信道的比特分配。(Key technology communication system simulation- bit loading algorithm function to complete in a given sub-channel information, the error rate and symbol rate sub-channel under the premise of the bit allocation.)
- 2011-02-27 23:32:59下载
- 积分：1
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SI-and-matlab-simulation
《系统辨识与MATLAB仿真-侯媛彬》源程序(" System Identification and MATLAB simulation- Houyuan Bin" source)
- 2011-10-22 18:16:28下载
- 积分：1
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fiujang
STM32制作的MP3的全部资料，车牌识别定位程序的部分功能，小波包分析提取振动信号中的特征频率。( STM32 all the information produced by the MP3, Part of the license plate recognition locator feature, Wavelet packet analysis to extract vibration signal characteristic frequency.)
- 2016-08-17 19:33:33下载
- 积分：1
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quwai_14
说明： 该内容为变压器差动保护的模型搭建图，可以运行，能够进行区内区外故障的仿真实验，并得出正确的结论(transformer protation)
- 2020-06-02 10:52:37下载
- 积分：1
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tsp
用0-1规划解决小规模TSP问题的精确解(Slove small vertexs TSP problem useing bintprograming)
- 2014-08-15 09:30:11下载
- 积分：1
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bp
说明： matlab的神经网络，可以用来预测，分类(matlab neural network can be used to predict classification)
- 2013-10-15 21:12:58下载
- 积分：1
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EM-algorithm
EM算法，在统计计算中，最大期望（EM）算法是在概率（probabilistic）模型中寻找参数最大似然估计或者最大后验估计的算法，其中概率模型依赖于无法观测的隐藏变量（Latent Variable）。(EM algorithm)
- 2014-12-11 17:00:24下载
- 积分：1
