doa_music

Code source of Distribution Wigner ville

pso 粒子群优化算法 以简单的函数为例，展示基本算法(PSO particle swarm optimization algorithm with simple function as an example, show the basic algorithm )

经典的信息论准则估计信号源个数。 使用空间谱估计理论，模拟发射信号由天线阵列接受采样。经过AIC和MDL两种算法，估计出采样序列中信号的个数，所加噪声是白噪声。(Classical information theory for sources number estimation. It s spatial spectrum estimation theory. it analogs transmission signal from the antenna array . It uses two algorithms“ AIC and MDL ”to estimate the number of sampled signal sequence. the added noise is white noise.)

We see from the graphs , that as the number of samples increased, the estimation gets better. As now for increased number of samples , variance of estimators are reduced. So, we get better estimation.

fastica法的matlab工具包，是一组程序(FastICA matlab law Toolkit, is a set of procedures)

带有遗忘因子的递推最小二乘估计法，可以用来辨识时变参数的程序(Recursive least squares estimation with forgetting factor can be used to identify time-varying parameters.)

kalman filter for state space estimation. descrat time, with Monte Carlo

灰色理论认为系统的行为现象尽管是朦胧的，数据是复杂的，但它毕竟是有序的，是有整体功能的。灰数的生成，就是从杂乱中寻找出规律。同时，灰色理论建立的是生成数据模型，不是原始数据模型，因此，灰色预测的数据是通过生成数据的gm(1,1)模型所得到的预测值的逆处理结果。(Gray theory that the behavior of the system even though the phenomenon is dim, the data is complex, but still it is ordered, there is a whole function. Gray number generation, that is, from the clutter to find out the laws. Meanwhile, the gray theory is to generate the data model, not the original data model, so gray prediction data by generating data gm (1,1) model predicted values ​ ​ obtained result of the inverse process.)

多变量预测控制，运用于两输入两输出的情况，显示输入输出。(Multivariable predictive control, applied to the case of two-input two outputs, display input and output.)

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