ber-bpsk-ofdm-rayleigh-channel

convolution coding program using viterabi algorithm

边缘检测，提取边缘，能够检测边缘，很好的把图像边缘找出来(edge detect)

SIFT算子程序，，使用简单，，代码有注释，，并给出使用方法(SIFT operator subroutine, use simple code annotated, and given the use)

使用“改进的欧拉公式”和“4阶龙格-库塔公式”分别对Volterra方程求解，绘制解曲线、相轨线，并将结果进行比较。(Using the " improved Euler formula" and " 4-order Runge- Kutta formulas," respectively, Volterra equations, draw solution curves, phase trajectories, and the results were compared.)

估算带宽，先是计算输入信号单边带功率谱密度，然后估算出信号所占的带宽(Bandwidth estimation, first calculating the input signal is single sideband power spectral density, and then estimate the proportion of signal bandwidth)

rake接收的matlab代码，不是simulink(rake receiver of the matlab code, not the simulink)

说明：  基于小波变换的二进制相移键控系统，BPSK信号检测 (Wavelet-based binary phase shift keying system)

脉冲响应不变法设计巴特沃斯数字低通滤波器(Impulse response invariant method design Butterworth digital low-pass filter)

The function returns constellation points and bit mappings specified in the DVB-S2 Standard. (qpsk, 32apsk, 16apsk)

This function uses eigenfunction analysis to solve the matrix differential equation m*y (t)+c*y (t)+k*y(t)=f1*cos(w*t)+f2*sin(w*t) with initial conditions of y(0)=y0, y (0)=v0