2PSK-modem-emulation

一个emd（经验模态分解） 程序 matlab 编写 可用(1 emd program available)

A matlab example of k means clustering

说明：  累加弦长的参数三次样条曲线方法求插值曲线，给定顶点(cumulative long string parameter cubic spline curve interpolation methods for curve, given vertex)

该代码实现产生一个窄带随机信号，该信号的自相关函数及其功率谱图形。(The code generates a narrow-band random signal, the autocorrelation function and power spectrum graphics.)

matlab 课程实习 第四章 答案 附源码(Chapter matlab courses internship answer with source code)

模拟2个独立窄带信号分别以20°，60°的方向入射到均匀线阵上，信号间互不相关，与噪声相互独立，噪声为理想高斯白噪声，阵元间距为入射信号波长的1／2，快拍数为200，信噪比为20dB，阵元数分别为10，50，100。 (Simulate two independent narrowband signals in the direction of 20 °, 60 ° of the incident on the ULA, among signal unrelated, independent noise, the noise is ideal Gaussian white noise, the array element spacing of the incident signal wavelength of 1/2, the number of snapshots 200, SNR is 20dB, the array element number 50, 100, respectively.)

矩阵的LU分解 PLU分解 以及平方根分解(LU decomposition of the matrix square root PLU decomposition and decomposition)

本代码能实现拉格朗日函数拟合，经验证具有很好的插值拟合效果。(This code can achieve the Lagrangian function fitting, interpolation proven with good fitting effect.)

贝塞尔曲线拟合程序，完全利用matlab实现(Bezier curve fitting procedures)

The model used for creating the reference voltage is shown in Fig. 4. First, photovoltaic output current (Ipv) and output voltage (Vpv) are passed through a first order low pass filter with a magnitude of G = 1 and a time constant of T = 0.01 seconds in order to filter out the high frequency components or harmonics from these signals as shown in Fig. 5 and Fig. 6. The filtered current and voltage signals (Ipv_F and Vpv_F) are then fed into the MPPT control block that uses the Incremental Conductance Tracking Algorithm. An algorithm that is based on the fact the slope of the PV array power curve shown in Fig. 7 is zero at the Maximum Power Point (MPP), positive on the left of the MPP, and negative on the right. The MPP can thus be tracked by comparing the instantaneous conductance (I/V) to the incremental conductance (∆ I/∆ V) [11] as in (1):