qpsk_example

A PID Control for Improving the characteristics of a Quarter model of a car suspension

通过正弦函数实现的光通信应用的占空比为50％或33％的RZ－DPSK信号(Sine function through the implementation of optical communication applications, the duty cycle of 50 or 33 RZ-DPSK signal)

基于协方差的车辆检测,用协方差矩阵为描述子，检测图片中的汽车或者卡车(Covariance matrix Vehicle detection)

这是一个好用的频偏估计算法的matlab仿真程序,LDPC码的完整的编译码，FIR 底通和带通滤波器和IIR 底通和带通滤波器。( This is a useful frequency estimation algorithm matlab simulation program, Complete codec LDPC code, Bottom-pass and band-pass FIR and IIR filter bottom pass and band-pass filter.)

迭代法求解一次方程运用迭代法实现一次方程的求解 原创(Iteration method to solve a equation)

DBPSK调制模式在高斯信道下的误码率。(the ber performance of DBPSK through gaussian channel.)

度分秒转化弧度，需要时加上自己的参数值可直接调用函数(Arc minutes and seconds into degrees, if necessary with their parameter values can call the function directly)

线性卷积的FFT实现 重叠相加 重叠保留(Implementation of linear convolution of the FFT overlap-add Overlapping)

Numerical Optimization, interior points

matlab的FFT仿真文件，可以设置五种不同频率，幅值，初始想问的输入波形，并且通过FFT变换可以看到各个波形的频谱和相位。(The FFT simulation matlab file, you can set up five different frequency, amplitude, initial input waveform to ask, and you can see the spectrum and phase of each waveform by the FFT.)