Sawtooth_fourier

qpsk modulation 这是从网上下载的。已经经过验证。(qpsk modulation which include the generation of random number, and eye diagram, power spectrual density)

插补函数GUI，对大家很有用的，就是一个GGUI 和一个(Mtalab GUI)

基于BDI的圆弧形表面回波探测，程序稍微改动就可为你所用(BDI-based detection of arc-shaped surface echo, the program can be slightly altered to use for you)

Crossover fron generic algorithm, matlab

纵向罗绮光栅的制作。用于生成周期为6个（可以根据需要改变）像素的纵向罗绮光栅，可以根据需要设定光栅的分辨率。(Vertical Luo Qi Grating. Used to generate a period of 6 (can be changed) pixels vertically Luo Qi grating may be based on need to set raster resolution.)

互信息图像配准，采用matlab实现，主要用于多模医学图像(mutual information image registration using Matlab to achieve, mainly for the Multi-Modal Medical Image)

Turbo编译码程序，实现turbo编码和译码！(Turbo encoding and decoding procedures, turbo encoding and decoding)

说明：  利用matlab编程语言，对合成孔径雷达的chirp-scaling算法进行了仿真。(Using matlab programming language for synthetic aperture radar of the chirp-scaling algorithm for the simulation.)

扩频通信系统仿真 ——系统将基带信号（即信息）的频谱扩展至很宽的频带上，然后再进行传输，即将欲传输的信息数据用伪随机序列编码调制，实现频谱扩展，然后通过信道编码发送出去；接收端采用与发送端完全相同的伪随机序列作为本地解扩信号进行相关处理，以恢复信息，最后进行解调，完成整个系统的接收。(Simulation of spread spectrum communication system- the system baseband signal (ie, information) be extended to a wide spectrum of frequency bands, and then transferred, will want to use transmitted information data sequence of pseudo-random code modulation, to achieve expansion of the spectrum, and then sent channel coding receiver and transmitter use the same pseudo-random sequence as related to the local despreading signal processing, in order to restore the information, the final demodulation, the receiver to complete the system.)

说明：  齿轮轮齿渐开渐开线，螺旋源程序等，希望对大家有用(Involute gear tooth involute, spiral source in the hope that useful)