算法测试函数

经典谱分析和改进算法，用于估计信号功率谱和方位，(Classical spectral analysis and improved algorithms for estimating the signal power spectrum and the position,)

说明：  遗传算法，是很好的算法，可以解决恩多东西(genetic alrh)

信号分解为六层的细节信号的谱分析小波包络谱分析修改版6层( Wavelet envelope spectrum analysis of a modified version of layer signal is decomposed into six layers of detail signal spectrum analysis)

Other program to estimate heterogeneous firm model

说明：  曲柄滑块的动力学matlab计算程序及结果(Dynamic calculation program of crank slider)

RS分形算法matlab代码实现,既利用RS方法计算时间序列的分形hurst指数(RS fractal algorithm matlab code, we use RS calculated time series fractal Hurst index)

K均值聚类的一个实例，附上.dat文件和程序以及运行结果，和大家一起讨论，呵呵(K means clustering of an example, attached. Dat files and programs, and operating results, and we can discuss, Oh)

说明：  这是国外一本经典教材附带的程序，通信系统的matlab实现，所含例子丰富(This is a classic foreign materials attached to the procedures, communications systems to achieve matlab contains abundant examples of)

当信噪比较大时，采用广义最小二乘法可能会出现多个局部收敛点，解决这个问题的方法可用多级最小二乘法，一般来说多级最小二乘法包含三级辨识过程。利用输入输出数据，通过多级最小二乘法，可分别求的辅助模型，过程模型和噪声模型的参数估计值。在高噪声的情况下，多级最小二乘法明显优于广义最小二乘法，其收敛点唯一。(When the signal noise ratio (SNR), and by use of the generalized least squares method may appear more local convergence point, the way of solving this problem can be used multistage least squares method, and generally multistage least squares method includes three identification process. Using input/output data, through the multistage least squares, respectively for the auxiliary model, process model and noise model parameter estimation. In the high noise, multistage least squares method is obviously superior to the generalized least squares method, and its convergence point only.)

bridge rectifier circuit that shows how out-of-phase the current is with respect to voltage