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i am in need 4g related matlab code.i learning in area of lte-advanced downlink for writing the matlab code

粒子群算法（PSO）优化BP神经网络，用来进行非线性的校正，效果良好(Particle swarm optimization (PSO) to optimize BP neural network, used for non-linear correction, to good effect)

用PId控制算法，实现永磁直线电机的速度与位置的跟踪(With PId control algorithm to achieve the permanent magnet linear motor speed and position tracking)

龙贝格算法的matlab源代码，包含图像，收敛速度分析(Romberg algorithm matlab source code, including images, convergence rate analysis)

GSM中GMSK调制信号的产生，有循环检测，周期性检测，包括主成分分析、因子分析、贝叶斯分析。( GSM is GMSK modulation signal generation, There are cycle detection, periodic testing, Including principal component analysis, factor analysis, Bayesian analysis.)

说明：  单相并网逆变器，使用无源阻尼，实现并网电流波形和电网电压波形同频同相(Single-phase grid-connected inverters, using passive damping, realize grid-connected current waveform and grid voltage waveform in the same frequency and phase)

完整的Matlab下人脸检测及识别系统源代码 Face Recognitio完整的Matlab下人脸检测及识别系统源代码(face recognition)

小波三级非标准规格化分解与重构 将载入的图像文件显示并进行非标准haar小波规格化分解与重构过程(Normalized wavelet decomposition and reconstruction of three non-standard image file will be included in the non-standard display and haar wavelet decomposition and reconstruction process of normalization)

包括上下chirp信号的生成及其相关性能图，自相关和互相关分析(This is an analysis of the basic performance of Up-chirp signal)

学习matlab中的一些必知小程序，量小而实用(Learning matlab must know in some small programs, a small amount of and practical)