hanglishibi

这里是通信领域中各种基带信号（非常全，几乎最新的都有），用matlab编写，给出了相应的带宽和功率谱密度，很值得学习通信的看看(Here are the various communications baseband signal (very full, almost all the latest), written with matlab, the corresponding bandwidth and power spectral density, it is worth learning to see communication)

说明：  这次上传的程序源码是关于使用BP神经网络预测数据。(The upload program source code is on the use of BP neural network forecasts.)

The study documents the famous 3D engine for 3D developers learn to use.

ch3_1_1：嵌套使用图像代数函数 ch3_1_2：两幅图像相加 ch3_1_3：图像与常数相加 ch3_1_4：两幅图像相减 ch3_1_5：两幅图像相乘 ch3_1_6：图像除以常数[两幅图像相除ch3_2_1：图像缩放 ch3_2_2：图像旋转 ch3_2_3：图像剪切 ch3_2_4：生成和应用仿射变换 ch3_2_5：findbounds函数的应用 ch3_2_6：makeresampler函数的应用ch3_2_7：投影变换 ch3_3_1：计算图像的局部标准差 ch3_3_2：计算输入图像的3×3邻域像素值的最大值（§3.3.2） 根据指定的坐标选择一个六边形区域 按灰度分割图像中的目标 函数poly2mask的调用格式 对指定区域进行锐化滤波 填充指定的区域 (ch3_1_1: nested function using the image algebra ch3_1_2: the sum of two images ch3_1_3: Image and constant sum ch3_1_4: subtract two images ch3_1_5: two images multiplied ch3_1_6: image divided by the constant [two images division] ch3_2_1: image scaling ch3_2_2: Image Rotation ch3_2_3: image shear ch3_2_4: Generation and application of affine transformation ch3_2_5: findbounds function application ch3_2_6: makeresampler function application ch3_2_7: projection transformation ch3_3_1: Calculation of the local standard deviation image ch3_3_2: Calculation of the input image 3 × 3 neighborhood of the maximum pixel value [§ 3.3.2] in accordance with the designated coordinates to select a hexagonal region segmentation by gray-scale image of the objective function calls poly2mask format designated area sharpening filter to fill the designated regional)

离散余弦变换的程序，希望对大家有所帮助。(Discrete cosine transform process, we want to help.)

3D Radon and its inverse

基于遗传算法和非线性规划的函数询优算法用来求解非线性规划问题(Genetic algorithms and non-linear programming optimization algorithm based on a function of exercise)

这个程序是王永良的空间普估计理论与算法中的幅相误差校正中自校正算法，找了好久找不到源程序，此程序是本人亲自编写，此方法的缺点是容易陷入局部最优解，具体看程序仿真图(This program is estimated Pu Wang Yongliang space theory and algorithms of amplitude and phase error correction in self-calibration algorithm, for a long time could not find the source, this program is a personally written, the disadvantage of this method is easy to fall into local optimal solution, specifically to see the program simulation map)

说明：  时间反转镜算法进行定位估计，利用声场波导特性，实现信号的增强和减弱(time reversal mirror APTRM)

说明：  复杂网络分析中的无标度，小世界和ba模型的源代码(Analysis of complex networks scale-free, small world, and ba model source code)