AGC系统的输入输出功能与中频放大器闭环增益的关系曲线

计算区域中心及最大面积切割程序，matlab版(Calculation of regional centers and the largest area of cutting process, matlab version)

这是一个关于在无线光通信中，实现PPM编码调制的程序。(This is a study on wireless optical communications, coded modulation to achieve PPM procedures.)

本代码为割线法求解非线性方程组。其调用格式为[r,m]=mulGXF1(F,x0,x1,eps) 其中，F:非线性方程组；x0初始解；x1：初始解；eps：解的精度；m：迭代步数。(The code for the secant method for solving nonlinear equations. Its call format [r, m] = mulGXF1 (F, x0, x1, eps) where, F: non-linear equations x0 initial solution x1: initial solution eps: solution accuracy m: the number of iterative steps.)

求pp波和ps波反射系数。。。。。。。。。。。。。。。。(Seeking pp wave and ps wave reflection coefficient)

基于坐标变换的电机模型，采用maltab/simulink建立的模型，三相交流电压型输入。(Motor model based on coordinate transformation maltab/simulink established model, three-phase AC voltage input.)

BPSK QPSK MSK 16QAM四种调制方式误码率对比(BPSK QPSK MSK 16QAM modulation error rate comparison of four kinds)

说明：  搭建BPSK+编码+交织仿真通信链路，仿真分析在不同信道条件下的不同译 码算法的误比特率性能。基于matlab，搭建BPSK+卷积编码+交织通信收发链路， 仿真参数如下： 1) 信源比特速率： 100 b R kbps = 2) 卷积编码：码率为1/2，生成多项式为（561,753） 3) 译码方式：维特比译码（硬判决译码、软判决译码（8 比特量化）） 4) 交织：行列交织，交织器深度为100bit，宽度为10； 5) 仿真点数：106(BPSK+ coding + interleaved simulation communication link)

信号功率谱密度、信道为AWGN信道时构造一种接收机(Signal power spectral density, for the AWGN channel when the channel construct a receiver)

由二维功率谱估计转换为一维功率谱，即径向功率谱的平均(converte the two-dimensional power spectrum to a one-dimensional power spectrum, i.e. the radial power spectrum Average)

a MATLAB program which reads files defining a piecewise constant triangulation of data, and displays a corresponding 3D surface. (a MATLAB program which reads files defining a piecewise constant triangulation of data, and displays a corresponding 3D surface.)