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pa021
光纤无线通信系统中传输性能的研究，小波包分析提取振动信号中的特征频率，预报误差法参数辨识-松弛的思想。( Fiber Transmission wireless communication system performance, Wavelet packet analysis to extract vibration signal characteristic frequency, Prediction Error Method for Parameter Identification- the idea of relaxation.)
- 2017-04-15 12:22:28下载
- 积分：1
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matlab mfiles实例分析
matlab mfiles实例分析，有大量的实例，每个M文件就是一个例子，有很多个。(Matlab mfiles example, a large number of examples, each M document is an example, many months.)
- 2005-07-26 11:11:25下载
- 积分：1
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Untitled3
在Matlab配件过滤器测 振幅响应资料使用invfreqz。(Fitting Filters to Measured Amplitude Response Data Using invfreqz in Matlab
)
- 2012-05-22 14:52:20下载
- 积分：1
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fuzzy
Fuzzy c-means clustering (FCM) with spatial constraints (FCM_S) is an
effective algorithm suitable for image segmentation. Its effectiveness contributes not
only to introduction of fuzziness for belongingness of each pixel but also to
exploitation of spatial contextual information. Although the contextual information
can raise its insensitivity to noise to some extent, FCM_S (1) still lacks enough
robustness to noise and outliers and (2) is not suitable for revealing non-Euclidean
structure of the input data due to the use of Euclidean distance (L2 norm).
- 2014-12-28 01:47:38下载
- 积分：1
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filter
设计巴特沃斯和切比雪夫滤波器，实现低通滤波，并计算滤波系数，给出效果图(Design a 20-order Butterworth filter, low-pass filter, and the filter coefficient calculation gives renderings)
- 2013-12-28 11:31:42下载
- 积分：1
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algoComparision
认知无线电的频谱分析算法及分析研究，自己编写的(Cognitive radio and spectrum analysis algorithm analysis, I have written)
- 2011-11-15 21:01:00下载
- 积分：1
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DCTlicheng
研究表明，构成K一L变换矩阵的向量也就是ToePhtz矩阵的特征向量。与此同时，离散
余弦变换矩阵逼近于ToePutz矩阵的特征向量矩阵，所以离散余弦变换矩阵与自然图像的
K一L变换矩阵十分相似。经过离散余弦变换后的变换系数块的协方差矩阵Cy非常接近对角
阵，即除了对角线元素以外，其它很多元素都近似为0，并且在左上角集中了主要能量。这
反映了自然图像大部分区域变化不大，亮度突变只占少数，即图像能量以低频成分为主的特
性。通过变换后的量化，舍弃对视觉效果影响较小的次要信息，可达到进一步的压缩效果。
虽然从去相关性能的意义上讲，DCT是一种次于K一L变换的准最佳变换，但是从算法实现的角度来看，DCT则远远优于K一L变换。首先，当图像的分块大小确定后，DCT的变换矩阵也就随之确定了，不随输入信号的统计特性变化而变化 其次，二维DCT能够分解成两次一维DCT，有利于硬件实现。
(Studies have shown that constitute a K L transformation matrix vector is ToePhtz eigenvector of the matrix. At the same time, discrete
The cosine transform matrix approximation in ToePutz matrix eigenvector matrix, so the discrete cosine transform matrix and natural images
Is very similar to a K L transformation matrix. After discrete cosine transform, the transform coefficient block of Cy is very close to the diagonal of covariance matrix
Matrix, namely except diagonal elements, many other elements are approximate to 0, and focused the main energy in the upper left corner. this
Reflects the natural images most area changed little, brightness mutations accounted for only a few, the energy is given priority to with low frequency components of image
Sex. Through quantitative after transformation, abandoning smaller effect on the visual performance of secondary information, can achieve further compression effect.
Although from related to the performance of the sense, DCT is a kind o)
- 2013-11-25 16:00:24下载
- 积分：1
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lsmin
Basically template match with rotation. Given a template as binary edge image the function find the object that match the template in the image. This work even if the template and object are in different orientations. The matching is is done by rotating the template and matching it to the image in various of angles, the best match is returned. Matching the template to the image can be done by various of template match approaches including crosscorrelation and generalized hough transform. See the readme file supplied in the code zip file for more details
- 2015-03-30 14:53:12下载
- 积分：1
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GSM_detector
单高斯模型是检测运动目标有效方法，这是一种matlab实现。(Single Gaussian model is an effective way to detect moving targets, which is a matlab achieve.)
- 2008-01-07 22:40:56下载
- 积分：1
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smc_example
滑模变结构控制仿真实例，为基础的滑模变结构入门程序，建议初学者参考使用(Sliding mode variable structure control simulation example, based on sliding mode variable structure entry procedures, the proposed reference to the use of beginners)
- 2009-11-23 16:14:45下载
- 积分：1
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