04

calculate fourierseries of signal

this function used to calculate CRAMER

利用matlab仿真雷达直射波与地面反射波干涉的雷达方向图。（仰角的大小对雷达作用距离的大小的影响）(Using matlab simulation radar direct wave direction of reflection wave interference with the ground radar chart. (the size of the size of the elevation of the radar range))

：给出了一种提取特征点的新方法和合理的特征不变量。该方法根据三角不等式原理利用第三边与另 外两边之和的比值大小来确定角点，以特征点和它相邻的两个特征点所形成的两条直线的夹角正切值以及三角形 第三边与另两边和的比值作为特征不变量。这种特征提取的方法简单，并且由于扩大了模板取值范围，使识别效果受特征点漏检的影响较小。实验表明，该方法不仅简便，而且效果良好。(: In this paper, a new feature point extraction method and the characteristics of rational invariants. The method is based on the principle of triangle inequality with the use of the third side and both sides of the ratio of the size to determine the Corner to feature point and its two adjacent feature points formed by the angle between two tangent linear and the third triangle on both sides and edges with another feature of the ratio as a variable. This feature extraction method is simple, and as a result of the expansion of the scope of the template values to identify the effect of feature points by the impact of smaller undetected. Experiments show that the method is not only simple, but effective.)

matlab灰度图像的边缘提取：直方图均衡化，canny算子实现一阶偏微分，计算梯度幅值和方向(matlab Gray Image Edge Extraction: histogram equalization, canny realization of first-order partial differential operator, calculate the gradient magnitude and direction)

实现彩色图像的中值滤波，去除噪声点，模糊图像(Color image median filtering to remove noise spots, blurred image)

直接转矩控制 同步电机的 传统控制pmsm 很好的仿真(Synchronous Motor Direct Torque Control the traditional control pmsm good simulation)

找了好久，才找到这个mctoolbox,功能很强大(i am looking for a long time mctoolbox)

THIS SIMULATION INCLUDES GRID CONNECTED MATLAB SIMULATION.

产生房间脉冲响应的源代码，在多噪声，多混响的情况下，信噪比很低，信干比也很低，同时伴随着噪声是非平稳的情况。(room impluse response in the nonstation snr sir is very low circumstance)