201004040854

二维离散小波变换(Mallat快速算法)对图像进行二维离散小波变换, 变换级数大于等于3级,然后进行阈值化处理(阈值约为10左右),再统计系数中0的个数（百分比表示）并进行重构, 最后计算重构图像的峰值信噪比(PSNR). 数据：灰度图像lena.bmp或其它图像, 滤波器系数可以调用matlab中的wfilters函数获得, wfilters函数的使用请在matlab中help wfilters.(Two-dimensional discrete wavelet transform (Mallat fast algorithm) two-dimensional discrete wavelet transform image transformed series is greater than or equal to 3, and then processing thresholding (threshold of about 10 or so), the number of re statistical coefficient 0 ( reconstruct the final calculation of the peak signal-to-noise ratio (PSNR) of the reconstructed image data: the grayscale image lena.bmp or other images, the filter coefficients can call matlab in wfilters function to obtain, wfilters function, expressed as a percentage) in matlab help wfilters.)

雷达中线性调频信号的脉冲压缩，距离普，多普勒谱及其回波仿真(Chirp radar signal pulse compression, the distance P, and echo Doppler spectrum simulation)

包含飞行器飞行中的姿态控制，如侧滑角，倾斜角，滚转角，俯仰角，有井曲线作为输入可计算其地震波的衰减,matlab程序运行时导入数据文件作为输入参数。( It comprises aircraft flight attitude control, such as slip angle, tilt angle, roll angle, pitch angle, There is a well attenuation curve as input to calculate its seismic waves, Import data files as input parameters matlab program is running.)

模拟太阳系运动的matlab代码，模拟太阳系运动的matlab代码，模拟太阳系运动的matlab代码(Matlab code for solar system motion simulation, motion simulation of the solar system' s matlab code to simulate the solar system motion matlab code)

for compression using discrete cosine transform

一个结构数组图像可视化的程序，可以用树结构表示结构数组中的各域名下的数组(a structure array image visualization process, the tree structure can be said that the structure of the array of arrays under the domain name)

说明：  计算在一个矩形里，用同等大小圆来覆盖这个区域，所需要的最小圆个数，我已经运行过(Calculated in a rectangle, the circle with the same size to cover the region, the minimum required for a round number, I have to run-off)

深入简出的分析了MATLAB符号运算和绘图功能,并附有大量实例,便于自学(Chien-depth analysis of the MATLAB Symbolic computing and graphics, together with a large number of examples, easy to self-)

Vine copula for C vine和 D vine的估计等。(Vine copula for C vine and D vine.)

正方形四个顶点上各有一个机器人，它们同时以相同的速度开始运动，且每个机器人以前一个机器人为目标运动。试求：机器人的轨迹！(Each of the four vertices of a square robot, they also began to sport the same speed and each robot is a robot before the target motion. Find: Trajectory!)