entropy

OFDM 通信系统仿真，包括信道建模，调制解调，求信噪比，功率分配 (压缩包内含50个源码程序）(OFDM communication system simulation, including channel modeling, modulation and demodulation, and signal to noise ratio, power distribution (Compressed package containing the source program 50))

一个关于PSO的程序，可以用于对函数的优化(On PSO procedures, can be used to optimize the function)

共轭梯度法（Conjugate Gradient）是介于最速下降法与牛顿法之间的一个方法，它仅需利用一阶导数信息，但克服了最速下降法收敛慢的缺点，又避免了牛顿法需要存储和计算Hesse矩阵并求逆的缺点，共轭梯度法不仅是解决大型线性方程组最有用的方法之一，也是解大型非线性最优化最有效的算法之一。 在各种优化算法中，共轭梯度法是非常重要的一种。其优点是所需存储量小，具有步收敛性，稳定性高，而且不需要任何外来参数(Conjugate Gradient method (Conjugate Gradient) is between the steepest descent method between Newton method and a method, it only USES a derivative information, but overcome the steepest descent method slow convergence of weakness, but also avoid the Newton law needs to storage and computing Hesse inverse matrix and shortcomings, Conjugate Gradient method is not only solve linear equations with most of the large method, and also one of the most effective solution large nonlinear optimization of one of the algorithm. In all kinds of optimization algorithm, the conjugate gradient method is very important. Its advantage is the storage capacity needed, it has small step convergence, high stability, and doesn t require any exotic parameters numerical experiment, this is the modern scientific computing of the answer above problem sets)

降低OFDM性能通过设置门限值，这是个完整的程序拿来就能用的。详细列出了papr的详细算法(inorder to reduce the OFDM papr system perfermance, this code implemented by clipping code. this is efficiency and useful. basic on the matlab langurage.)

JCM ID003 COM serial port specification for driver developing in Russian.

霍普菲尔德网络的另外一个例子，matlab编程(Hopfield networks, another example, matlab programming)

ETSI STANDDARD TEST DOCUMENT FOR TBR6

在径向基函数拟合、径向基函数神经网络和小波神经网络中的几种常用的基函数。包括高斯基函数、逆二次基函数、小波基函数等。(Several basis functions in radial basis function fitting, RBF neural network and wavelet neural networks. Including Gauss function, inverse quadratic basis functions, wavelet function and so on.)

直方图均衡化的另一种解法，不是用累加的方法得到的，是用分配灰度值空间的办法。(Histogram equalization another solution, instead of using the cumulative method is the use of the distribution of gray value space approach.)

说明：  Transformation from XYZ coordinates to Geodetic Coordinates.