AmplitudeModulatorNoise

用matlab解决无约束优化问题，与精通matlab第七章配套(Using matlab to solve unconstrained optimization problems)

Decryption algorithm of caeser which generate all possible combinations

自适应滤波器的LMS算法，主要用MATLAB实现了其算法(LMS adaptive filter algorithm, the main MATLAB realize its 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)

This function takes the n time domain samples (real or complex) and finds the psd by taking (fft/n)^2. The two sided spectrum is produced by shifting the psd The array freq provides the appropriate frequency values for plotting purposes. By taking 10*log10(psd/max(psd)) the psd is normalized values beow 60db are set equal to -60db

A simple matlab tutorial

The files explain aliasing , gibbs, dft and fft. All are very useful in signal processing applications and the files illustrate the contents very well with plots/graphs.

turbo码译码仿真经典实例 (Decoding turbo classic example of simulation)

calculates the signal to noise ratio in each subchannel

this matlab source code for detect plate number