FFTtest123

newton rapson method matlab program

说明：  基于MATLAB的QPSK调制和解调，并包含对原理的解释和讲解(QPSK modulation and demodulation ,based on MATLAB)

基于bp神经网络的水质神经网络预测系统，matlab 源程序。(Bp neural network based on neural network prediction system of water quality, matlab source code.)

matlab reedsolomon code

Otsu-最大类间方差Matlab代码 最大类间方差法原理：最大类间方差法是由日本学者大津于1979年提出的,是一种自适应的阈值确定的方法,又叫大津法,简称OTSU。它是按图像的灰度特性,将图像分成背景和目标2 部分。背景和目标之间的类间方差 ％ 大,说明构成图像的2 部分的差别越大,当部分目标错分为背景或部分背景错分为目标都会导致2 部 ％ 分差别变小。(Otsu- Otsu Matlab code Otsu Principle : Otsu law by Japanese scholars in the large-1979's, is an adaptive threshold established methodology, also known as big-law, referred to Otsu. It is based on image characteristics of the gray image can be divided into the background and objectives of Part 2. Background and objectives between the between-class variance%, which meant that the two images form part of the greater difference, When some background into the wrong target or part of the background into the wrong target will lead to sub-2% difference becomes smaller.)

注水算法是根据某种准则，并根据信道状况对发送功率进行自适应分配，通常是信道状况好的时刻，多分配功率，信道差的时候，少分配功率，从而最大化传输速率。本文运用matlab通过对注水算法在mino系统中的三种不同的情况下进行了仿真，比较出在小信噪比时，相同信噪比下利用CSI的功率注水算法获得容量优于未知CSI的平均功率分配算法；相同容量下已知CSI信噪比比未知CSI时的信噪比小3dB.当信噪比增大到一定程度时，功率注水算法所获得的信道容量将收敛到平均功率分配的信道容量。(Water flooding algorithm is based on certain standards, and according to the channel condition to adaptive allocation of sending power, usually is a good moment, channel situation more distribution power, channel is poor, less power distribution, so as to maximize the transmission rate. This paper USES matlab based on water flooding algorithm in Austin system of three different cases are simulated and compared in small SNR, under the same SNR use CSI power allocation algorithm for capacity is superior to the average power allocation algorithm of unknown CSI Same capacity known CSI signal-to-noise ratio than the unknown CSI small signal-to-noise ratio of 3 db. When the signal-to-noise ratio increases to a certain degree, the power allocation algorithm for channel capacity will converge to the average power distribution channel capacity. )

说明：  主要用于初学者的有关遗传算法的MATLAB的应用.这里应用了少量的工具箱,对初学者很有帮助.(Mainly for beginners of the Genetic Algorithm MATLAB applications. Here the application of a small amount of kit, very helpful for beginners.)

说明：  可实现，实用，迭代法（新创新），基于改进的迭代法图像分割算法（源码）， 核心思想：先添加高斯噪声，然后新迭代分割算法，最后显示自动计算的阈值。 (Can realize, practical, the iterative method (new innovation), the iterative method based on improved image segmentation algorithm (source), core ideas: first add gaussian noise, then new iteration segmentation algorithmFinally，finally shows the threshold automatic calculation. )

说明：  计算直流潮流的算法，基于MATLAB，忽略无功功率，只考虑有功功率。(DC Power Flow Algorithms)

基于MATLAB的攻击水平机动目标比例导引三维弹道仿真(MATLAB-based attacks proportional navigation for maneuvering target level of three-dimensional trajectory simulation )