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LFSR First Period Implementation by matlab in cryptography

Downhill Simplex Method

清空环境变量 网络结构建立 遗传算法参数初始化 迭代求解最佳初始阀值和权值 遗传算法结果分析 把最优初始阀值权值赋予网络预测 BP网络训练 BP网络预测 清空环境变量(Empty the environment variable Established network structure Genetic algorithm parameter initialization Iterative Solution optimum initial thresholds and weights Analysis of Genetic Algorithms The optimal initial threshold value is assigned to the right network prediction BP network training BP network prediction Empty the environment variable)

simple laboratory problem volved by matlab 2

These codes are about beamforming. receiver is like disc or ula.describtions are in m_files

当信噪比低，小信号输入时噪音严重，在整个音域的声音明显变得浑浊不清，不知发的是什么音，严重影响音质。信噪比的大小是用有用信号功率（或电压）和噪声功率（或电压）比值的对数来表示的。(When the signal to noise ratio is low, serious small signal input noise, the sound of the entire range becomes significantly turbid, I do not know what made the sound, seriously affecting the sound quality. Size is the number of the signal to noise ratio by the ratio of desired signal power (or voltage) and the noise power (or voltage) represented.)

感知器是神经网络里面的一个重要分类器，本例子采用matlab实现单个神经元感知器，分类效果较好~(Perceptron neural network which is an important classifier, using the example of the realization of a single neuron matlab perceptron, classification better ~)

基于MATLAB的线性调频信号产生和频谱分析，某雷达参数数下的模糊函数及自相关函数仿真分析。，已通过测试。 (MATLAB linear FM signal generator and spectrum analysis, the number of parameters of a radar ambiguity function and autocorrelation function of simulation analysis. , Has been tested.)

把轨道根数转移到对应的状态向量，在轨道中很常用。(The orbital elements are transferred to the state vector)

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