LFM

At this moment, the major obstacle of wide PV system commercialization is the high initial investment cost that stems from the strict grid connection standards and high expectations from the PV system [2], [3]. The grid-connected PV system consists of two parts: PV arrays that convert irradiation to electrical energy, and the converter that feeds the energy into the grid.

多个脉冲积累后可以有效地提高信噪比，中频积累时要求信号间有严格的相位关系，即信号时相参的，所以称为相参积累。(Multiple pulse accumulation can effectively improve SNR, if integration requires strict phase relationship between signals, whereby the signal coherent, so called coherent accumulation.)

本程序是对64QAM-OFDM的调制解调及加AWGN的简单程序。做成GUI形式，能方便地梳理清楚整个过程。调制解调过程中加入了导频和CP循环前缀，可观察EVM和EbN0-BER曲线。(this program is about the modulation and demodulation based on Matlab.A simple program to familiar with the process of 64QAM-OFDM.Using reference and CP. You can observe EVM and the figure of EbN0-BER)

说明：  随机减量法，用环境激励得到固有频率的方法(random reduce)

matlab编写的多元变量最小化问题的downhill方法求解(matlab prepared multi-variable minimization problem downhill method)

simulation capacity without CSI transmitter

This article presents a new adaptive framework for locally parallel texture modeling.

利用自然梯度算法，构成不同频率的调制信号，包含位置式PID算法、积分分离式PID，一些自适应信号处理的算法，包括最小二乘法、SVM、神经网络、1_k近邻法,使用起来非常方便，合成孔径雷达（SAR)目标成像仿真。( Use of natural gradient algorithm, Constituting the modulated signals of different frequencies, It contains positional PID algorithm, integral separate PID, Some adaptive signal processing algorithms, Including the least squares method, the SVM, neural networks, 1 _k neighbor method, Very convenient to use, Synthetic Aperture Radar (SAR) imaging simulation target.)

多元数据分析的主分量分析投影，进行逐步线性回归，未来线路预测,分析误差。( Principal component analysis of multivariate data analysis projection, Stepwise linear regression, Future line prediction, error analysis.)

本程序包给出了数值优化常用方法的程序。优化问题应用广泛。(This package gives the commonly used methods of numerical optimization procedures. Widely used optimization problem.)