chazhifa

一、 本程序采用16QAM调制方式，对一串2进制信源进行调制，采用（7，4）循环码对信源做信道编码，用升余弦滚降函数进行基带调制，再调到高频信道；在信道上加入高斯白噪声，运用匹配滤波器解调，画出解调星座图，运用最小欧氏距离译码判决，再对信号进行信道解码，画出采用信道编码技术和不采用信道编码技术的误比特率图。(First, this program uses 16QAM modulation mode, for a string of two binary source is modulated, using (7,4) cyclic code of the source-channel coding to do with a raised cosine roll-off function for base-band modulation, and then transferred to a high frequency channel in the channel by adding Gaussian white noise, the use of matched filter demodulation, demodulation constellation plot, using the minimum Euclidean distance decoding decision, and then right channel signals, decoding, channel coding techniques used to draw and non- channel coding techniques using bit error rate plans.)

this is coding of dwt in matlab

Artificial potential method for obstacle avoidance. This is for my final project.

it is a code in MATLAB for calculation of bit error ratio vs signal to noise ratio , for multiuser code division multiple access .. usually in any communication system calculation of BER is very important to know the performance of system .. so in this program multiuser CDMA system is used ,, spreading is done using HADAMARD matrix .. or WALSH code .. and BER vs SIGNAL to NOISE ratio graph is computed

this is one of the best compression code in the world name as shanon fano code

Van der Pol Oscillator (chaotic map)

OFDM with PEAK TO AVERAGE POWER RATIO

用matlab，根据要求输出特定的pattern，作为相机标定用(Using matlab, according to the specific requirements of the output pattern, as the camera calibration with)

这是MATLAB图像处理函数的具体讲解，非常实用具体，对图像研究方面的编程很有帮助(This is the MATLAB image processing function on the specific, very concrete and practical, research on the image programming helpful)

马斯京根法洪水演算，分顺演和反演，有区间来水和无区间来水，可用于学习Matlab和洪水演算(Mas Beijing flood routing root method, points along the play and inversion, with and without reaches, reaches can be used to learn Matlab and flood routing)