HFSI

Matlab的流程控制语句，掌握循环结构。 Matlab的脚本文件、函数文件编写。 Matlab脚本文件、函数文件的调试.用户数据的导入. 数值计算，能用编程方法实现。(Matlab flow control statements, control loop structure. Matlab script file, the function document preparation. Matlab script files, function files debugging. User data import. Numerical calculation, can Programming Method.)

Channel estimation techniques for OFDM systems based on a pilot arrangement are investigated. Channel estimation based on a comb type pilot arrangement is studied through different algorithms for both estimating the channel at pilot frequencies and interpolating the channel. Channel estimation at pilot frequencies is based on LS and LMS methods while channel interpolation is done using linear interpolation, second order interpolation, low-pass interpolation, spline cubic interpolation, and time domain interpolation. Time-domain interpolation is obtained by passing to the time domain by means of IDFT (inverse discrete Fourier transform), zero padding and going back to the frequency domain by DFT (discrete Fourier transform). In addition, channel estimation based on a block type pilot arrangement is performed by sending pilots in every sub-channel and using this estimation for a

说明：  通过分析交通流量时间序列的特点，引入BP神经网络进行短时交通流预测。首先，分析了短时交通流量预测的意义及研究背景；然后，介绍了BP神经网络的结构模型、学习规则以及BP算法的改进算法；最后，通过BP神经网络对短时交通流进行预测，并分析了在各种不同条件下的预测情况。(through the analysis of the characteristics of traffic flow time series, introduces BP neural network for short-term traffic flow prediction. First of all, it analyzes the significance of short-term traffic flow prediction and research background. And then, it has discussed the model and structure, the study rule and the improved algorithm of BP neural network. Finally, by BP neural network to forecast the short-term traffic flow, it analyzes under different conditions of the neural network prediction.)

说明：  降低PAPR,包括SC-FDNA的PAPR降低，也包含OFDMA的PAPR(reduce papr)

说明：  较权威的NS培训文档，希望对大家有所帮助(NS training more authoritative document, we want to help)

说明：  基于遗传算法的主动悬架模糊控制，通过遗传算法来优化模糊控制的隶属度函数，以此来优化悬架的垂直加速度的方均根(Fuzzy control of active suspension based on genetic algorithm and membership function of fuzzy control are optimized by genetic algorithm to optimize the mean square root of vertical acceleration of suspension.)

说明：  给出五种常用小波基的时域和频域波形图,常用小波基有Haar小波、Daubechies(dbN)小波、Mexican Hat(mexh)小波、Morlet小波、Meyer小波等5种。(The time domain and frequency domain waveform diagram of five kinds of wavelet bases, wavelet base is Haar wavelet, Daubechies wavelet, Mexican (dbN) Hat (mexh) wavelet, Morlet wavelet, Meyer wavelet and 5. )

使用混沌与分形分析的例程，包括面积、周长、矩形度、伸长度，主要为数据分析和统计，PLS部分最小二乘工具箱,matlab程序运行时导入数据文件作为输入参数，针对EMD方法的不足。( Use Chaos and fractal analysis routines, Including the area, perimeter, rectangular, elongation, Mainly for data analysis and statistics, PLS PLS toolbox, Import data files as input parameters matlab program is running, For lack of EMD.)

信号光在光纤中受色散,自相位调制,交差相位调制效应影响时的非线性传输方程的求解.(By the signal light in the fiber dispersion, self phase modulation, cross phase modulation effects in nonlinear transmission equation.)

LVQ神经网络的分类，乳腺肿瘤诊断的神经网络实例分析(VQ neural network, the classification of breast tumor diagnosis neural network analysis)