buck

音频信号通过LM386放大，包括四元数的各种计算,D-S证据理论数据融合。( LM386 audio signal amplification, Including quaternion various calculations, D-S evidence theory data fusion.)

说明：  for循环判断最大值，最小值。熟悉FOR循环的用法(For loop judges maximum and minimum. Familiar with the use of FOR loops)

非规则LDPC码在AWGN信道下的性能仿真，码长1024，码率0.5，调制方式QPSK(simulation of LDPC codes in AWGN channel)

用于基站定位的RSA算法，采用sdp工具箱求解二次规划问题，增加紧约束条件得到更加精确的MS位置。(The RSA algorithm for base station location uses the SDP toolbox to solve the quadratic programming problem, increasing the tight constraints and obtaining a more precise MS location.)

说明：  这是自由空间路径损耗的代码。里面有多个m文件(This is the code of path loss in free space. There are multiple M files in it.)

讲解如何画3D的极坐标图形！有M文件和说明！(Explain how to draw 3D polar coordinate graphics! M-file and instructions!)

说明：  粒子群程序代码。包括JAVA和matlab非常使用。适合初学者(Particle Swarm program code. Including the very use of JAVA and matlab. Suitable for beginners)

说明：  在嵌入式开发和单片机开发，串口是必不可少是外设设备，串口可以用于调试程序的正确性，同样他可以运用于你的整个开发平台，因而知道如何利用串口调试助手是十分重要的。(In embedded development and MCU development, serial port is essential peripheral equipment, serial port can be used to debug the correctness of the program, also he can be used in your entire development platform, so know how to use the serial port debugging assistant is very important.)

说明：  实现BCH码的编码和解码程序，支持参数更改，已在大型项目实用(BCH code and decode matlab)

64QAM using CMA algorithm