isodate

In a normal communication channel, it is often desirable to concentrate the information in as narrow a region of the frequency spectrum as possible in order to conserve available bandwidth and to reduce power. The basic spread spectrum technique, on the other hand, is designed to encode a stream of information by spreading the encoded data across as much of the frequency spectrum as possible. This allows the signal reception, even if there is interference on some frequencies. While there are many variations on spread spectrum communication, we concentrated on Direct Sequence Spread Spectrum encoding (DSSS). The DSSS method spreads the signal by multiplying it by a chip, a maximal length pseudorandom sequence modulated at a known rate. Since the host signals are in discrete-time format, we can use the sampling rate as the chip rate for coding.

基于环形的领域最优粒子群优化算法，MATLAB源程序(Based on the best areas of the ring particle swarm optimization algorithm, MATLAB source code)

matlab实现通信中DSB调制。程序中相关数据不同，请根据自己需要修改。(DSB modulation matlab to achieve communication. Process data are different, modify according to their needs.)

constant impedance load modeling in a 11 bus distributiaon network , with power flow and linecurrent and busvoltage output

This tutorial is intended for those who want to learn basics of MATLAB programming language. Even with a limited knowledge of this language a beginning programmer can write his/her own computer code for solving problems that are complex enough to be solved by other means. Numerous examples included in this text should help a reader to learn quickly basic programming tools of this language. Topics discussed include the m-files, inline functions, control flow, relational and logical operators, strings, cell arrays, rounding numbers to integers and MATLAB graphics.

FFT分析程序，非常简单，适合对程序不了解的人快速使用(FFT analysis program is very simple and suitable for people who do not understand the program quickly use)

采用Matlab工具箱函数建立神经网络，对一些基本的神经网络参数进行了说明，深入了解参考Matlab帮助文档。 (Using Matlab toolbox functions to establish neural networks, some of the basic neural network parameters are described to understand the reference to Matlab help documentation.)

非常简单的卡尔曼滤波程序，便于大家学习卡尔曼滤波。(Very simple Kalman filtering program, easy to learn the Kalman filter.)

matlab下可以直接使用的小程序 包括各种常用算法 对应书籍为《matlab宝典》(matlab can be directly used for small programs, including such popular books as the corresponding algorithm " matlab Collection" )

it shows the operating principle of solar module .. first of all when insolation fall on pv module .. it generate current . and thus power is generated