MIMO

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

组合导航的程序，主要是航位推算方法的程序(Navigation procedures, mainly dead reckoning method of procedure)

标准粒子群算法的实现思想基本按照粒子群算法(2)----标准的粒子群算法的讲述实现。主要分为3个函数。第一个函数为粒子群初始化函数(His thought of the implementation of the standard particle swarm algorithm according to the particle swarm algorithm (2)- the standard particle swarm algorithm about implementation. Mainly divided into three functions. The first function of particle swarm initialization function)

matlab files fro the water fall curves

fingerprint recognition matlab code

比较经典的电机仿真 用于直流电机的研究 毕业设计中也可用到(The classic motor simulation graduation design for DC motor can also be used to)

PLOT_FRONTS space-time plot of rupture front and process zone tail slip velocty threshold to define rupture front rupture times (for which V=Veps) at each point with quadratic time interpolation

线性预测编码（LPC）算法压缩语音。MATLAB实现。计算预测系数和增益。(Linear predictive coding (LPC） algorithm )

分数阶傅里叶变换，MATLAB程序代码，从国外网站下载(fraction fourier transform)

uav detection using acoustic signal and sound detection.