Fiber-modes

MATLAB 下的数字信号处理实现示例 包括: 单位脉冲序列 矩形序列 特定冲击串 卷积计算 卷积定律验证 (MATLAB under the realization of digital signal processing examples include: unit rectangular pulse sequence sequence-specific impact of the law of string convolution convolution calculation to verify)

本文首先研究了ISAR成像的基本原理，在理想转台模型的基础上对距离-多普勒(R-D)成像算法做了分析，对目前常用的运动补偿技术进行了对比和研究，并将这些技术用于雅克-42飞机的实测数据中。然后，论文系统地论述了压缩感知主体理论，重点对信号重构中的基追踪(BP)算法和正交匹配追踪(OMP)算法进行了深入的研究和讨论，并通过正弦信号的仿真结果验证了两种方法的有效性。(Firstly, the basic principle of ISAR imaging study, based on an ideal model for distance turntable- Doppler (RD) imaging algorithm to do the analysis of the motion compensation techniques currently used are compared and studied, and the use of these technologies in the measured data in the Yak-42 aircraft. Then, the paper systematically discusses the theory of compressed sensing body, focusing on the signal reconstruction of the base track (BP) algorithm and orthogonal matching pursuit (OMP) algorithm is conducted in-depth studies and discussions, and the simulation results verify the sinusoidal signal the effectiveness of the two methods.)

2D的FDTD和平面波展开，用于光学和微波计算(2D FDTD and plane wave expansion for the calculation of optical and microwave)

例3：分析占空比为ta的矩形脉冲频谱 T=1 时间窗大小 ta=0.5 占空比 N=256 t=linspace(-T,T,N) ts=2*T/N fs=1/ts (x=zeros(1,N) x(N/2-round(N/2*ta):N/2+round(N/2*ta))=ones(1,2*round(N/2*ta)+1) y=fft(x,N) figure plot(t,x) title([ 时域信号图 占空比为 ,num2str(ta)]) axis([-T T-0.2 1.2]) xlabel( t /s ) figure subplot(211) f=linspace(-fs/2,fs/2,N) plot(f,abs(fftshift(y))/N) title([ 矩形脉冲双边谱 脉冲时间t=[- ,num2str(ta*T), , ,num2str(ta*T), ] ]) xlabel( f /Hz ) )

谱峰搜索传播算子DOA估计算法MATLAB程序(Spectrum peak search propagator DOA estimation algorithm based on MATLAB program)

简单的OFDM仿真，采用QPSK调制，有串并转换，保护间隔，fft/ifft等(Simple OFDM simulation using QPSK modulation, there are serial to parallel conversion, guard interval, fft/ifft etc.)

说明：  matlab .M函数库，自己整理的，我用的很好，朋友们能参考一下(matlab. M library, his finishing, I use the good friends who can refer to)

this is assiment for artifical inteleginet

自回归滑动平均模型，能很好地建立随机风速模型，产生随机序列。用于电力系统可靠性分析。(Autoregressive moving average model, stochastic wind energy is well established model, generate a random sequence. Power system reliability analysis.)

RLS自适应滤波算法及其改进算法的子函数程序。还有相关的例程展示(RLS adaptive filtering algorithm and its subfunction program.There are also related routine demonstrations.)