BUAAfiles

matlacb程序包，能读写netcdf文件,(matlab program bag, read & write netcdf file)

this mfile calculate y bus

PSO_A Alogrithm ,Hybrid particle swarm-based-simulated annealing optimization algorithm

介绍了跳频扩频通信系统的原理。应用matlab语言防真和分析了一个1个频点的跳频通信系统的扩频通信过程；防真和分析了2个跳频信号跳频点的变化情况。(introduced a frequency-hopping spread spectrum communication systems theory. Application of Matlab language and the defense really an analysis of a frequency hopping spread spectrum communication systems communication process; Defense and analysis of the true two-frequency point of the changes.)

基于遗传算法的自动组卷算法，能实现按照知识点、难度、区分度的自动试题提取组卷。(Automatic test paper based on genetic algorithm, can achieve according to knowledge, the difficulty of distinguishing the degree of automatic extraction of test paper questions.)

SHUNT ACTIVE POWER FILTER

说明：  自动提取曲线的峰值的matlab程序，比较有用 (Automatic extraction of the peak curve matlab procedures, more useful)

利用matlab验证循环码的编码方法，用matlab编码得到所有许用码组。(Matlab validation circulation yards coding method, matlab code get all the allowable yards group. )

wood_berry蒸馏塔的PID控制，使用matlab编程实现。(wood_berry distillation column PID control, the use of matlab programming.)

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.