cdmaofdm

说明：  turbo码的译码，以及包含logmap和sova两种算法(turbo_logmapturbo,logmap and sova)

this file is about communication simulation modeling total form of communication system in a form of mathlab modeling

利用STFT可以估计信号在每片短时窗内的频率得到信号的瞬时频率，该曲线由一组时间和频率相对应的点组成，反映了信号频率随时间的变化。(Using STFT can estimate the frequency of the signal in every piece of short-time window get signal instantaneous frequency, the curve consists of a set of time and frequency of corresponding points, reflects the signal frequency changes over time. )

图像处理中基于小波变换的快速边缘检测matlab实现(Image processing based on wavelet transform to achieve fast edge detection matlab)

Plots Constellation difference between the ideal and TDSCDMA

【matlab编程代做】matlab圣诞树图 可以作为参考使用学习([Do] matlab matlab program generation tree diagram can be used as a reference study)

说明：  求解动态有限元方程，板式轨道过渡段动力响应分析源程序(Dynamic finite element equations to solve, slab track Dynamic Response Analysis of the transition source)

基于图像的电路板芯片自动识别检测代码，matlab编的，希望和大家多多交流(Circuit board chip image automatic identification based on the code, matlab code, and we hope more exchanges with you)

说明：  完整的锁相环matlab代码实现，其中包括高斯噪声干扰，频差，相差，给出最后频率及相位收敛结果图。重要的是代码中有本人详细注释，易于理解(Complete phase-locked loop matlab code, including the Gaussian noise interference, frequency difference, a difference, given the final results of the frequency and phase diagram convergence. Important that the code in detail in my notes, easy to understand)

利用Matlab进行卫星伪距定位，根据测量方式的不同，GPS定位的方法也不同，假令在无误差的情况下进行定位，即可利用Matlab将定位问题转化为非线性方程组问题。(Matlab, satellite pseudo-range position, according to the different measurement methods, GPS positioning methods are different, Jialing no error in the case of positioning, you can use Matlab to locate problem into nonlinear equations.)