xiaobo

this code is used for frequency modulation in matlab

用平面波展开法计算二维声子晶体带隙，里面附有注释，可以学习(With two-dimensional plane wave expansion method to calculate the phononic band gap, which is annotated, you can learn)

Electric Motor Parameters UAV design

双二进制信号是一种信号体制利用码间干扰作为一种控制方式而不是消除码间干扰(Duobinary signaling is a three level signaling scheme that uses intersymbol interference in a controlled way instead of trying to eliminate it. )

这是一个关于齿轮的齿顶圆和齿根圆半径的计算程序，先将图片预处理和二值化，然后进行边缘检测求出圆心，最后用平均法求出半径。(This is an addendum on the gear tooth root radius circle and the calculation procedure, the first image preprocessing and binarization, edge detection and then find the center of a circle, with the final calculated average radius.)

频谱细化分析的程序，程序包括着逐渐完成的几个过程程序，注意频谱细化是针对开始对象时连续的。(Detailed analysis of the spectrum, the program includes a process of gradual completion of several procedures, attention to refine the spectrum when the object is for consecutive starts.)

卡尔曼滤波与粒子滤波比较.用于目标跟踪。比较了两种滤波算法的性能(particle filter and Kalman filter)

COURS DELECTROTECHNIQUE

QuIRK Multibody Dynamics Package

随机减量技术（Random Decrement Technique-RDT），其主要是利用样本平均的方法，去掉响应中的随机成分，而获得初始激励下的自由响应，(Random decrement technique (Random Decrement Technique-RDT), whose main method is to use the sample mean, remove the random component of the response, and the response to the initial excitation freedom of)