Three_Phase_Grid_cjy

该代码通过对常规单脉冲雷达信号、LFM雷达信号和BPSK雷达信号通过wiger变换，得到三种信号的时频图，分析他们的时频关系和区别。(The code on conventional single-pulse radar signals, LFM radar signals and radar signals BPSK wiger transformation, three kinds of time-frequency map analysis of their relationship and when the frequency difference.)

content based image retri for functioning with matlab java visual studio

在已知内外方位元素的情况下，使用matlab程序编写代码实现共线方程求解。(Under the condition of the interior and exterior orientation elements are known, the use of matlab code to realize the collinear equation.)

matlab2009b优化工具箱Tutorial(matlab2009b Optimization Toolbox Tutorial)

普通PID控制及其扩展算法控制的MATALB仿真程序，内容包含面广．(ordinary PID control algorithm and its expansion of enriching control simulation program, which includes many sectors.)

比较matlb理论计算与comsol软件计算米氏散射，对表面等离基元感兴趣的可以关注(More matlb theoretical calculation of Mie scattering with comsol software, such as from the primitive to the surface plasmon of interest can focus)

calssification algorithm2

无线信道OWzQYJ模型MATLAB仿真程序，实现了SrQGdSB技术下多参数的模拟，最接近物理信道，信道逼近参数接近最小二乘OWzQYJ算法。 (Radio channelOWzQYJ model MATLAB simulation program, to achieve a multi-parameter simulation SrQGdSB technology, the closest physical channel, the channel parameters close to the least square approximation algorithm OWzQYJ )

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):

说明：  这个程序是EMD进行后对IMF的各个能量进行计算得出每个分量的能量分布，这个种方法也是一种常见方法,其中还包括这特征提取后的绘制可视程序。(This procedure is carried out after the IMF EMD various energies calculated energy distribution of each component, this method is also a common method.)