gray2ind

说明：  由simulink搭建的动态前馈控制系统模型(Simulink set up by the dynamic feedforward control system model)

BCJR译码算法的matlab源代码，附有详细注释，适合学习map算法实现。(BCJR decoding algorithm matlab source code, detailed notes, suitable for studying the map algorithm. )

在实现QPSK的系统时，用到的位同步部分的程序(QPSK in the realization of the system, used part of the process-bit synchronous)

ofdm transmission involves each and every single block of the ofdm transmitter with exact output

Process a binary data stream using a communication system that consists of a baseband modulator, channel, and demodulator. Compute the system s bit error rate (BER).

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.)

说明：  给图像添加噪声，驱除噪声，具体的说就是先添加高斯噪声等等，然后通过中值滤波，自适应滤波等等(Add noise to the image, get rid of noise。Specifically, it is the first toadd Gaussian noise, etc., and then median filtering, adaptive filtering, etc. )

matlab code on usb and lsb for filter

comparison of pid , fuzzy pid and kalman filter fuzzy pid

使用4阶龙格库塔以及样条函数分析处理数据(The use of four order runge kutta and spline function analysis data)