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OFDM系统仿真，所用的源代码 ，用matlab软件进行仿真(OFDM system simulation, using the source code with matlab software simulation)

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.

This paper presents a new and efficient approach for capacitor placement in radial distribution systems (RDS) that determine the optimal locations and size of capacitor with an objective of improving the voltage profile and reduction of power loss. The solution methodology has two parts: in part one the loss sensitivity factors (LSF) are used to select the candidate locations for the capacitor placement and in part two a new algorithm that employs Dijkstra Algorithm (DA) is used to estimate the optimal size of capacitors at the optimal buses determined in part one. The main advantage of the proposed method is that it does not require any external control parameters. The other advantage is that it handles the objective function and the constraints separately. The proposed method is applied to 33 & 69 RDS. The solutions obtained by the proposed method are compared with other methods. The proposed method has outperformed the other methods in terms of the quality of solution. OPTIMAL C

OTDR一维数学模型模拟。包括后向瑞丽散射波形分析，加扰，可直接仿真(OTDR one dimensional mathematical model simulation. Wave to Ruili scattering analysis, including after scrambling, direct simulation)

Constrained_only nolinearPSOkarseb

compHeatSchemes Compare FTCS, BTCS, and Crank-Nicolson schemes for solving the 1D heat equation

对于遥感影像亚像元尺度信息的获取，常用手段就是混合象元分解(spectral unmixing)

matlab code of 3d in porous media

DSCDMA的matlab实现，当下ds-cdma是基带传输的主要组成部分，该程序通过对扩频、编码的应用实现。(DSCDMA matlab realize, the moment ds-cdma is a major component baseband transmission, the program spread through the encoding application implementation.)

说明：  本压缩包包含ASK,FSK,PSK,CDMA调制方式的实现，均为simulink。 另外有chirp调制，以及几种方式误码率的比较。(This folder contains ASK, FSK, PSK, CDMA modulation implemented by Simulink. Besides,there is also chirp modulation, and comparison on the error rate.)