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％ y=filter(sig,fmin,fmax) ％ 对信号进行理想滤波，可完成低通，带通 ％ sig为被滤波信号 ％ fmin为下限频率，当fmin为0时为低通滤波器，当fmin>0时，为带通滤波器 ％ fmax为上限频率，fmax>fmin ％ fs为信号的采样频率 ％ y为经过滤波后的信号 (％ Y = filter (sig, fmin, fmax)％ of the ideal signal filtering, to be completed by low-pass, band-pass filter％ sig for signal％ fmin is the minimum frequency, when fmin for 0:00 for the low-pass filter, when fmin > 0, for the bandpass filter％ fmax is the upper limit frequency, fmax> fmin％ fs for signal sampling frequency％ y for the filtered signal)

说明：  matlab入门教程之因子分析，适合初学者上手(Matlab introductory course of factor analysis, suitable for beginners)

sensor processing in matlab

正弦波的PCM编码以及自己录制的语音信号的PCM编码(PCM encoded sine wave PCM encoding and recording their own voice signals)

it is a spectrum analysis code

拓扑优化设计的经典99matlab代码，对拓扑优化设计感性的可以(Topology optimization design classic 99matlab code, on the topology optimization can be sentimental)

machine learning a probabilistic persepective的源码(machine learning a probabilistic persepective code)

多分类支持向量机实现方法的分析比较：一对一、一对多和DAG的对比，比较专业，(more SVM method of comparison : one-to-one, one-to-many and DAG contrast, more professional-huh)

针对常规PID控制不具有自适应能力，对于时变、非线性系统控制效果不佳。提出了将模糊技术与PID控制相结合的控制方式，设计模糊控制器。(Conventional PID control with adaptive capabilities, time-varying, nonlinear system control ineffective. Fuzzy and PID control combined control mode fuzzy controller design.)

根据耦合膜理论，计算长周期光纤光栅包层膜有效折射率(According to film theory coupled to calculate long-period fiber grating cladding effective refractive index film)