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基于锁相环Top-down的建模方法在MATLAB环境下建立数字锁相环完整的仿真模型，并用SIMULINK对数字锁相环的仿真模型进行仿真。　(Top-down phase-locked loop based on the modeling method in MATLAB environment DPLL set up a complete simulation model, and use of digital phase-locked loop SIMULINK simulation model simulation.)

说明：  各种格式阅读器，还是非常好用的！！！！！！！！！！！！！！(Reader in various formats, still very nice! ! ! ! ! ! ! ! ! ! ! ! ! !)

说明：  球杆系统的模糊pid仿真程序，包含模糊推理系统和GUI界面 (Driver Fuzzy pid simulation program, including fuzzy inference system and GUI interface)

基于MATLAB内点算法求解SDP半正定规划软件包(MATLAB-based interior-point algorithm for solving semidefinite program package SDP)

used to extract texture feature using gabor filter

图转换的模型转换编程，实现了基于图理论的模型转换的编程(Model conversion program conversion chart, graph theory to achieve a model-based programming conversion)

随机数的产生！ 在matlab里面实现的(The generation of random numbers! Inside achievable in matlab)

一种harris的改进方法，值得借鉴，一篇很好的参考论文！(Harris an improved method, is worth learning, a good reference paper!)

it contents some basic code to finding root of a equation

Implementation of Ceaser Cipher in C