xiaobofenxi

image enhancement in frequency domain

应用多元高斯声束叠加方法建立粉末合金构件的声场模型(sound field simulation sound field simulation sound field simulation)

matlab GUI for 3d data viewer

随机减量法用于从随机振动信号中提取结构的自由衰减响应信号(Random Decrement Technique （RDT）is used to extract damped free vibration form random vibration )

级联MUSIC算法将二维谱峰搜索变为一维谱峰搜索，大大降低算法复杂度。(Cascade MUSIC algorithm to two-dimensional spectrum peak search into a one-dimensional spectrum peak search, greatly reduce the complexity of the algorithm.)

该源码在matlab平台上运行,实现的功能是利用hough变换检测图像中具有一定长度的直线,并将直线从整个图像中提取出来.不仅如此,还可以通过计算分析求出对应直线的斜率.(The source platform to run in matlab, the function is to realize the use of hough transform detection image has a certain length of a straight line, and a straight line from the entire image extracted. Not only that, but can also be obtained by calculating the analysis corresponds to the slope of a straight line.)

说明：  由Nasa提供，在Matlab裡面調用Code V的m檔。(m files for using Code V in Matlab.)

有限元PlaneFrameElement的matlab程序(FEA matlab PlaneFrameElement)

针对混沌参数调制( C P M) 的电力线通信( P L C) 中谐波引起的窄带干扰， 两阶段动态估计方法根据最小 相空间体积( MP S V) 准则估计模型参数， 计算量大。为此， 提出将未知参数合并到增广状态矩阵的联合卡尔曼滤 波方法， 避免了专门的参数估计过程， 在提高增益性能的同时有效降低了计算量。方法的性能通过对混沌电力 线通信下的单音干扰和多音干扰的有效抑制得到了验证。 (For the chaotic parameter modulation (CPM) of the power line communication (PLC) in the narrow-band interference caused by harmonics, two-phase dynamic estimation methods with minimum phase space volume (MP SV) criterion estimate model parameters, calculation of volume. Toward this end, the unknown parameters into augmented state matrix of the joint Kalman filter, to avoid the special parameter estimation process, while improving the performance gain reduces the amount of calculation. Method of performance under the power line communication by chaotic multitone jamming tone interference and the effective suppression has been verified.)

说明：  用0tsu方法和梯度算法分别对图像进行边缘提取(Use 0tsu method and gradient algorithm to extract the edge of the image respectively)