Matlab-code

This is a code of the precise integration method.

本代码应用FDTD 方法模拟微带带阻滤波器，并得到S11，S12 曲线以及显示电磁波在空间的传播。频率范围为0-20GHz。微带基片的相对介电常数为6.15，厚度是1.27mm。(Application of FDTD method to simulate the code microstrip band-stop filter, and get S11, S12, and the curve shows the spread of electromagnetic waves in space. Frequency range of 0-20GHz. Microstrip substrate relative dielectric constant of 6.15, the thickness is 1.27mm. )

一道matlab例题，适合初学者学习，内容仅供参考，如有更好的方法请推荐。(A matlab example, suitable for beginners to learn, is only for reference, if you recommend a better way.)

Basic image processing techniques like some filters for image enhancement, histogram equilization etc

the configuration files for both the uplink and downlink of lte

MIMO信号与系统英文书里面配套的matlab程序，包括Alamouti原理的空时块码接收机过程等等。(MIMO Signals and Systems in English inside the book matching matlab procedures, including the principle of Alamouti space-time block code receiver process and so on.)

一个按自己意愿设计子图和轴外注释的小程序，很具有个性化。(A small program to design figure and explanation of outer axes according to one s own willingness, with personal characteristics.)

本文主要是描述的DDC的matlab功能，从输入的信号经过1/4fs搬频，然后半带抽取，再到混频，最后到分数倍的抽取，再经过成形滤波器输出。(digital down convention)

单元平均恒虚警检测——CA-CFAR检测器：包括对于无目标、仅有噪声的信号进行CA-CFAR检测的仿真，以及对于含目标、且在瑞利杂波背景下的CA算法仿真。一些程序主要是为了绘图，画出CA-CFAR检测过程中的信号波形以及检测门限对比图；而另一些程序是为了计算CA-CFAR检测过程中的检测概率和虚警概率。(CA-CFAR detectors: simulations of detection to signals with no target but noise only, as well as signals with target and the background of Rayleigh clutter. Some programs are aimed at giving pictures of the signals and detectiong threshold in the process of detection using CA-CFAR algorithm, while other programs are aimed at calculating the detecting rate and false alarm rate of CA-CFAR algorithm.)

主要用于实现雷达信号的处理，对四目标进行识别测速(Mainly used to implement the processing of radar signals for the four target recognition speed)