CHUANJI

利用COM组建的实现VC++与MATLAB的混合编程(COM realize the use of established VC++ Mixed with MATLAB Programming)

Modulation test for OFDM : This is a set of five (5) codes about COFDM (Coded Orthogonal Frequency Division Multiplexing) and coding schemes such as Convolutional, BCH, Reed Solomon (RS) and Low Density Parity Check (LDPC). The study uses an OFDM signal over an AWGN Channel with white Gaussian noise model, and calculate the Bit Error Rate wich is plotted.

This paper presents a novel algorithm of hiding secret messages by applying mathematical lemmas and information theory. The proposed algorithm can hide more information with acceptable embedded rate and achieves requirements of information hiding algorithm and simply information extracting. The main idea is applying modern algebra to solve the information hiding problem in multimedia. In order to prevent some attacks on stganography, hidden initial bits of image data pixels are chosen randomly. The extracted information are achieved without the reference of the original image and extracted keys. The experiment results show that our approach is effective and reliable.

免疫算法和粒子群算法结合后用于求解多目标无功优化( Immune algorithm and particle swarm algorithm is used to solve with more reactive power optimization goal )

LDPC MATLAB工具箱，提供LDPC编解码程序(LDPC MATLAB Toolbox provides procedures LDPC Codec)

采用配电网各个节点对电压灵敏度的不同计算分布式光伏最大接入容量(Each node uses a different calculation of the distribution network of distributed PV voltage sensitivity maximum access capacity)

交错网格SIMPLE算法数值模拟顶盖驱动流(Staggered grid SIMPLE algorithm for simulation of roof-driven flow)

duffing混沌振子的实现代码，以及绘制duffing系统分岔图的源代码，matlab程序。(duffing chaotic oscillator realization of the code, as well as the bifurcation diagram drawing duffing system source code, matlab procedures.)

说明：  阵列信号到达角经典算法，多重信号分类算法的源程序(the matlab program ,music )

4阶龙格库塔方程，给出了一个实例，并且写出详细的步骤和过程，看到就能会。(4-order Runge-Kutta equations, given an instance, and write detailed steps and processes that can be.)