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We will consider trajectories that lie in a plane passing through the center of the planet, so that we permit no out-of-plane forces in the following analyses. The general nature of the trajectory and the variables describing it are shown in Figure 3-1 below

希尔伯特变换hilbert得到的解析信号，并对变换结果进行傅里叶变换，观察频谱分布(Hilbert transform to obtain the analytic signal, and transform the results of Fourier transform, observe the spectrum distribution)

说明：  这个文件可以使用matlab绘制各种带箭头的图。三维或二维的箭头图（矢量图）(This file can use matlab to draw various graphs with arrows. 3-D or 2-D arrow (vector))

介绍学习线性调频信号，包括在雷达应用中的匹配滤波（脉冲压缩）(The learning of linear FM signals, including applications in radar matched filtering (pulse compression))

积分微分方法及应用在matlaB中的实现，压缩包里面包含讲义和源代码。(Integral derivative methods and applications in MATLAB, compression package which contains the lecture notes and source code.)

说明：  stk和matlab互联的应用，创建简单的gui，可以对场景进行放大缩小(STK and MATLAB interconnected application, create a simple GUI, can zoom in and out of the scene)

it tells about nakagami channel

说明：  对认知无线电算法的详细论述，有利于初学认知无线电的人(Cognitive radio algorithms to detail and is conducive to learning cognitive radio people)

说明：  对信号进行EMD分解后画出信号的希尔伯特包络谱程序，自己编写的，调试成功(EMD decomposition of the signal after the draw of the Hilbert envelope of the signal spectrum of procedures, I have written, debugging success)

用MATLAB实现遗传算法，介绍怎么实现(To achieve genetic algorithms using MATLAB)