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利用离散余弦变换求取重力或磁异常的水平与垂直导数，简单实用。(using the DCT transform to calculate the horizontal and vertical derivatives of potential-field anomaly.)

Power quality generation of voltage sags. All kinds of sags can be generated.

粒子群算法，也称粒子群优化算法（Particle Swarm Optimization），缩写为 PSO， 是近年来发展起来的一种新的进化算法(Evolutionary Algorithm - EA)。PSO 算法属于进化算法的一种，和模拟退火算法相似，它也是从随机解出发，通过迭代寻找最优解，它也是通过适应度来评价解的品质，但它比遗传算法规则更为简单，它没有遗传算法的“交叉”(Crossover) 和“变异”(Mutation) 操作，它通过追随当前搜索到的最优值来寻找全局最优。这种算法以其实现容易、精度高、收敛快等优点引起了学术界的重视，并且在解决实际问题中展示了其优越性。粒子群算法是一种并行算法。(Particle swarm optimization, also known as particle swarm optimization (Particle Swarm Optimization), abbreviated as PSO, is a new evolutionary algorithm developed in recent years (Evolutionary Algorithm- EA). Kind, and simulated annealing algorithm PSO algorithm is similar evolutionary algorithms, it is also starting a random solution, through an iterative search for the optimal solution, which is also used to uate the quality through fitness solution, but it is simpler than genetic algorithm rules It has no genetic algorithm " crossover" (Crossover) and " variant" (Mutation) operation, which by following the current search to find the optimal value to the global optimum. This algorithm is its easy implementation, high accuracy, fast convergence, etc. attracted academic attention and show its superiority in solving practical problems. PSO algorithm is a parallel algorithm.)

自编matlab遗传算法程序,自编matlab遗传算法程序(Self PSO algorithm matlab program, can be downloaded directly use)

对测试信号进行emd 分解，计算其在各个频带中的能量分布(The EMD of the test signal is decomposed, and the energy distribution in each frequency band is calculated)

说明：  matlab生成四种波形的mif文件，供fpga中rom仿真使用(Matlab generates four waveform mif files for use in fpga rom emulation)

ASK function, this is a block that has three input and one output. the input are the two carrier that have different amplitute, and the digital signal representing the information or data to be modulated.

说明：  掌握几种简单的数值解法，包括Euler方法、R-K方法、线性多步法 (shu zhi fen xi zha chi )

matlab的一些波束形成的算法 多种方法。。(the matlab the beamforming algorithm a variety of methods. .)

说明：  关于VBLAST系统的球形译码重要的英文文章（IEEE)(System on the spherical decoding VBLAST important article in English (IEEE))