-
GaBp
用GA训练BP网络的权值、阈值从而优化神经网络(GA training BP network with the right value, the threshold in order to optimize the neural network)
- 2009-05-24 18:03:52下载
- 积分：1
-
tixingxiangyi
三步梯形相移图案的matlab生成程序，使用的是灰度图像。(Three-step phase shift pattern matlab trapezoid generation program, using a gray-scale image.)
- 2014-12-16 10:31:45下载
- 积分：1
-
Factor-analysis-in-chapter-12
matlab中的第12章 因子分析 （含有例子和源码）(Factor analysis in chapter 12)
- 2013-12-23 12:20:29下载
- 积分：1
-
OFDM rece matlab
接收端采用的算法和程序流程与发送端发送的OFDM符号的帧结构有关系。具体的帧结构，以及定时估计，频偏估计，剩余误差跟踪的算法可参考算法说明文档。这里对程序的流程进行说明。
首先根据短训练字的特性进行相关运算，进行信号到达检测，当检测到相关值大于门限一定次数后，认为有信号到达。然后根据长训练字的特性，进行相关运算，进行OFDM符号FFT窗口起始位置的估计。估计出FFT窗口的位置后，先在时域进行小频偏的估计，将两个长训练字进行小频偏补偿后，进行FFT运算，根据FFT运算的结果进行整数倍频偏的估计。这些参数估计完成后，就可以进行数据解调了。先对数据部分进行完整的频偏补偿，然后根据估计的FFT窗口位置进行FFT运算得到频域的数据，进行解调。然后在对应于导频的子载波位置上提取出导频信息，根据导频信息估计出剩余定时误差以及剩余的信道响应误差，将误差量送入环路进行跟踪。当收到所有数据后，重新回到信号到达检测状态，进行下一次信号到达的检测和信号接收。
(The receiving end uses the algorithm and the program flow and the frame structure of the OFDM symbol transmitted by the sending end. Specific frame structure, and timing estimation, frequency offset estimation, residual error tracking algorithm can refer to the documentation. Here to illustrate the process of the program.
First, according to the characteristics of the short training word correlation operation, the signal reaches the detection, when the correlation value is greater than the threshold of a certain number of times, that there is a signal to reach. Then, according to the characteristics of the long training word, the correlation operation is carried out, and the initial position of the OFDM symbol FFT is estimated. The estimated position of the FFT window, first in the time domain for small frequency offset estimation, two long training word for small frequency offset compensation, the FFT operation. According to the result of FFT for integer frequency bias estimation. Af)
- 2020-11-05 00:19:52下载
- 积分：1
-
bianshi2
说明： 二阶系统的参数辨识，使用matlab实现，差分方程形式(Parameter identification of the second order system, realized by MATLAB, in the form of difference equation)
- 2020-06-26 11:16:50下载
- 积分：1
-
wavelet
提供了小波算法的程序，该程序在MATLAB中得到验证，简单可行。(introduce a program about the wavelet ,the program is easy and used in the MATLAB)
- 2012-04-02 17:24:23下载
- 积分：1
-
PSO
粒子群算法，自己编写的，可以用，matlab语言环境(Particle swarm optimization, I have written, you can use, matlab language environment)
- 2014-01-08 11:15:12下载
- 积分：1
-
immunity
用matlab编写的人工免疫算法，是一类模拟生物体免疫系统的功能智能仿生算法(Artificial immune algorithm written in MATLAB)
- 2015-04-02 20:40:28下载
- 积分：1
-
nine_bus_pf
使用simulink仿真，实现潮流计算。。。非常详细，可以对学习潮流计算和simulink的提供帮助。
(Use simulink simulation, realization flow calculation. ʱ ?? ʱ ?? Very detailed, can help to study the trend of computing and simulink.)
- 2020-11-04 11:29:52下载
- 积分：1
-
zuixiaoercheng
说明： 两种对二阶系统进行参数辨识的最小二乘算法，一种可以直接得到输入输出之间的传递函数，一种可以解出线性的差分方程各系数，再反解得到传递函数。附带的一个二阶系统的模型，可以自行下载导入输入输出数据进行试验。(Two kinds of least square algorithm for parameter identification of second-order system, one can directly get the transfer function between input and output, the other can solve the coefficients of linear difference equation, and then get the transfer function by inverse solution. The attached model of a second-order system can download the input and output data for test.)
- 2020-11-02 08:59:53下载
- 积分：1
