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Spread spectrum merupakan sistem dimana sinyal yang dikirimkan memiliki bandwidth yang jauh lebih lebar daripada bandwidth sinyal informasinya sendiri. Proses pelebaran bandwidth sinyal informasi ini dilakukan pada sisi pengirim dan disebut spreading. Sebaliknya, proses penyempitan kembali bandwidth sinyal informasi dilakukan di sisi penerima, dan disebut despreading. Pada gambar 1 berikut menunjukkan proses yang terjadi pada sistem spread spectrum.

：在有限区域内分布的稀疏不均的、具有一定分布结构的海量数据集的高效、高精度聚 类问题是一个尚未完全圆满解决的难题。针对Affinity Propagation 聚类算法(AP)的不足之处， 提出了两个改进型的聚类算法(n limited areas of uneven distribution of sparse, has certain distribution structure of the mass datasets of high efficiency, high precision together Problem is a perfectly solved problem has not yet completely. For Affinity Propagation clustering algorithm (AP) of the deficiencies, Put forward the two improved version of the clustering algorithm)

研究盲信号的盲分离原仿真程序，其中有一个是应用ICA的(Of blind signal separation from the original simulation program, one of which is the application of ICA,)

说明：  基于EM算法，可以估计在混合高斯分布下的三个参数(EM expection)

AN EFFICIENT GENETIC ALGORITHM CODE TO FIND OPTIMAL VALUES(MAXIMUM) OF SIN(X) FUNCTION IN THE RANGE OF 0 TO 2*PI

matlab程序，遗传算法解决经典的TSP(旅行商)问题(Matlab procedures, genetic algorithm to solve the classic TSP salesman problem (TSP))

基于滑模变结构的混沌系统的带有饱和函数的反同步代码，同时包括绘制相图和时域图的代码。(Sliding mode variable structure chaotic systems with saturation function based on inverse synchronous code, including drawing phase diagram and time domain chart code.)

Probability and stochastic process

解析Comtrade数据文件 电力行业标准数据文件(decode the Comtrade file)

详细介绍了MATLAB Simulink的系统仿真功能，并给出了大量的实例。(detail MATLAB Simulink and give various examples)