smooth_update

用MATLAB设计IIR数字带通滤波器的程序函数(Design of IIR digital with MATLAB program function bandpass filter)

给出一组数据后，将数据依次读取，然后完成复杂的计算公式(Given a set of data, the data is read in turn, and then complete the complex formula)

一个非常红的画图程序，非常有意思，再此上传下(A very red paint program, very interesting, upload it again next)

说明：  通过通信系统频率合成原理，生成伪随机的m序列(Principles of communication systems through the frequency synthesizer to generate pseudo-random m-sequence)

波数域算法又称为距离徙动算法（Range Migration Algorithm，RMA）或-算法，由Cafforio等提出。该算法分析距离处理后信号的二维频谱，通过二维频域匹配滤波进行相位补偿，在完成方位聚焦的同时完全校正距离徙动。由于其中的Stolt变换能克服SAR信号中距离徙动和SRC对斜距的依赖，因此波数域算法是一种理想的成像算法，尤其在处理大斜视角和长合成孔径的SAR数据时。但Stolt变换需要插值，降低了处理效率并引入额外的误差。(The wavenumber domain Algorithm is also called Range Migration Algorithm (RMA) or -algorithm, which is proposed by Cafforio et al.The algorithm analyzes the 2-d spectrum of the signal after the distance processing, carries out phase compensation through the 2-d frequency domain matching filter, and completely corrects the distance migration while completing the azimuth focusing.Because the Stolt transform can overcome the SAR signal range cell migration and SRC dependence on oblique distance, thus wavenumber domain algorithm is an ideal imaging algorithm, especially when dealing with large squint Angle and long synthetic aperture of SAR data.But Stolt transformation requires interpolation, reduces processing efficiency and introduces additional errors.)

说明：  汉明码（Hamming Code)是汉明于1949年的一种能纠正单个错误的线性分组码，最小码距dmin=3。汉明码的实现方式是在原数据中插入m位作为校验位。对于（n，k）汉明码，编码时需满足以下原则(Hamming code is a kind of linear block code which can correct single error in 1949. The minimum code distance Dmin = 3. The implementation of Hamming code is to insert m bit into the original data as check bit. For (n, K) Hamming codes, the following principles should be met)

可靠的指纹图像细化处理算法，采用opta(Reliable fingerprint image thinning algorithm, using opta)

LED 二次光学设计中的透镜设计，根据非成像光学原理，利用matlab计算生成二维点坐标，可导入3维建模软件，生产模型。代码经过测试，可成功完成计算。大家可以参考一下。(LED optical design, lens design, according to the non-imaging optics principle, the use of matlab calculation to generate two-dimensional coordinates can import 3-D modeling software, the production model. The code has been tested and successfully completed the calculation. We can refer to.)

HHT gcc代码，专门用于希尔伯特黄变换。(HHT gcc code, specifically for the Hilbert-Huang Transform.)

unifeid power flow controller