jiaodianjiance

说明：  这里总结了一些光子晶体的重要概念，对学习光子晶体初学者有很大的帮助(Summarized some of the important concepts of photonic crystals, photonic crystals for learning very helpful for beginners)

神经网络的结构选4-5-3，学习速率为0.28，惯性系数为0.04，加权系数初始值取-0.5-0.5上的随机数。(4-5-3 neural network structure selection, the learning rate is 0.28, the inertia coefficient is 0.04, the initial value of weighting factor to take-0.5-0.5 the random number.)

数字控制系统是一种以数字计算机为控制器去控制具有连续工作状态的被控对象的闭环控制系统。因此，数字控制系统包括工作于离散状态下的数字计算机和工作于连续状态下的被控对象两大部分。我的课题的数字部分（PID）仿真由相应的离散传函实现，运用数字PID对被控对象实行准确控制。通过调节比例（P）、积分（I）、微分（D），使对象的输出达到预期的效果。(Digital control system is a kind of digital computer for the controller to control a continuous state of the object and closed loop control system. Therefore, the digital control system, including work on the discrete state of the digital computer and work in a continuous state of the plant is two parts. My topic of digital section (PID) simulation by the realization of the corresponding discrete transfer function using the digital PID control of the plant is implemented accurately. By adjusting the ratio of (P), integral (I), differential (D), so that the output of the object to achieve the desired results.)

LDPC encoding and decoding for Gallager algorithm

说明：  共轭梯度法编程.共轭梯度法是共轭方向法的一种依赖于迭代点的负剃度而构造出来的(Conjugate gradient method programming. Conjugate gradient method is a conjugate direction method relies on an iterative point out negative tonsure and the structure of the)

很不错的一个软件，处理图像拼接的sift算子，可能里面还有那么一点点小错误，但加油可以行的 (There is a small error, but should be able to sift operator)

对多径信道的仿真 输入码元,是一行矩阵,可以是实数也可以是复数 ％fs是输入码元的比特率 ％fd是多普勒频移 ％n_delay是多径信道的径数 ％t_delay是多径信道各径的时延时间 ％p_delay是多径信道各径的功率db值 (Of the multipath channel simulation input symbol is a line matrix, can be a real number can also be plural fs is the input symbol of the bit rate fd is the Doppler frequency shift is n_delay multipath channel diameter of a few t_delay is multipath channel time delay of the Path p_delay is multi-path channel the power of the diameter db value)

该代码可用于拟合纤维长度分布函数，可将长度分布的直方图拟合成一条连续的曲线(This code can be used for fitting the fiber length distribution function, it can change the length distribution histogram into a continuous curve.)

非线性规划问题中无约束问题的简单线搜索算法（simplelinesearch）的MATLAB代码(Unconstrained nonlinear programming problem in question is simple line search algorithm (simplelinesearch) MATLAB code)

有关matlab并行以及分布式运算的书籍，适合初学者使用。(About matlab parallel and distributed computing books for beginners to use.)