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image_compress
本程序利用奇异值分解对3通道彩色图像进行压缩分解，具体步骤如下：
压缩过程：
1. 选取子图像大小K值，把图像分解成M×M个子图像，IMG(s),s=1,2,…, M2，其中M=N/K，原始图像IMG大小为N×N。
2. 计算这M2个子图像的平均值average，对每幅子图像减去均值图像得到新图像。
3. 计算相关矩阵R，其元素定义为 。
4. 计算R的特征值与特征向量，计算每幅子图像与最大特征向量的内积，便得到编码，即压缩后的图像。
(This procedure using singular value decomposition of 3-channel color image compression decomposition, concrete steps are as follows: compression process: 1. Select the sub-image size K value, the image is decomposed into M × M sub-image, IMG (s), s = 1, 2, ..., M2, in which M = N/K, the original image IMG size N × N. 2. M2 calculate the average of sub-image average, for each sub-image minus the new images mean images. 3. Calculation of correlation matrix R, defined as its elements. 4. Calculation of the characteristics of R value and eigenvector calculated each sub-image with the largest eigenvector of the inner product, they will have to code, that is, the compressed images.)
- 2008-01-03 23:00:33下载
- 积分：1
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Second-order-system-identification
用MATLAB实现最小二乘法和最小方差的参数辨识(Using MATLAB complete parameter identification method of least squares and minimum variance)
- 2014-10-26 11:14:56下载
- 积分：1
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Aperiodic-Array
研究采用大单元间距非周期阵列的方法抑制和避免栅瓣，并在单元级非周期阵列形式的基础上研究适合于大型相控阵的子阵级非周期阵列形式，给出几种非周期阵列的形式及相应的波瓣图(study the method of aperiodic array using big space of elements to suppress and avoid the grating lobe, and study the forms of aperiodic array in the sub-array level which are suitable for large phased array on the base of the aperiodic array in the element level )
- 2011-10-27 22:09:38下载
- 积分：1
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Coherency-Analysis
运动目标模拟器相参性分析，分析了基于数字射频存储器(DRFM)的运动目标模拟器(MTS)相参性。由于DRFM延时的离散性,引起了MTS输出信号相位的改变,破坏了信号的相参性,使MTS输出信号频谱发生变化,不仅使谱线位置移动,而且还产生了附加的寄生谱线。分析结果表明,延时更新率(Fc)决定了谱线间隔,并通过sinc函数决定谱线的幅度,而雷达信号频率与所模拟目标的速度共同决定谱线的移动。
(Moving Target Simulator Coherent Analysis, Moving Target Simulator (MTS)-based digital radio frequency memory (DRFM) coherent. Due to the the DRFM delay discrete MTS output signal of the phase change is caused, the destruction of the phase of the signal parameters, the MTS output signal spectrum changes, not only the spectral line position, but also generates additional parasitic spectral line. The analysis results show that the delay update rate (Fc) determines the spectral interval by sinc function determines the amplitude of the spectrum, while the radar signal frequency and speed together determine the movement of the spectral lines of the simulated target.)
- 2012-09-11 16:54:51下载
- 积分：1
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Algoritmos
This is a case for recognition of hand gestures using the 7 Hu moments and neural network classifiers
- 2009-05-07 23:25:56下载
- 积分：1
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7
说明： 精通MATLAB优化计算算法，无约束多维极值问题。共11个程序。(Proficient in MATLAB optimization calculation algorithm, unconstrained multi-dimensional extremum problem. A total of 11 procedures.)
- 2010-03-24 09:45:45下载
- 积分：1
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SCEGET
shuffled complex evolution method (function)
- 2013-12-13 03:54:02下载
- 积分：1
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leida
在高频地波雷达探测系统中，接收系统的任务是将目标回波信号从很强的杂波和噪声干扰中提取出来，使得后续的目标信息提取得以进行。本课题从高频地波雷达接收机的工作原理出发，分析了高性能接收系统设计中的一些问题并提出了相应的解决方案。(In the high-frequency surface wave radar detection system, the receiving system of the target echo signal is extracted from the strong clutter and noise, making the subsequent target information extraction to be carried out. The working principle of the subject from the high-frequency surface wave radar receiver, this paper analyzes some of the problems in the design of high-performance receiver system and propose appropriate solutions.)
- 2013-04-17 21:51:25下载
- 积分：1
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luojiyunsuan
逻辑运算例子！包括网络设计图和运算演算过程！ (failed to translate)
- 2009-06-25 15:37:29下载
- 积分：1
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estimate_AR
采用L-D算法，估算自回归模型（AR模型）系数。L-D法是一种矩阵递推估计法(LD algorithm to estimate the coefficients of the autoregressive model (AR model). The LD method is a matrix recursive estimation method)
- 2021-04-07 11:49:01下载
- 积分：1
