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1.分别在两个图中画出δ(n)和δ(n-2)，其中-10≤n≤10，画出U（n）其中-10≤n≤10。 2.分别在两个图中画出x1(n)=cos(2π×20×0.01×n)，0≤n≤10和x2(n)=(0.8)n，1≤n≤6。 3.由上一题，计算y(n)=x1(n)+x2(n)，并画图。(1. Draw the figure at two δ (n) and δ (n-2), where-10 ≤ n ≤ 10, draw the U (n) where-10 ≤ n ≤ 10. 2. Respectively in the two Draw the figure x1 (n) = cos (2π × 20 × 0.01 × n), 0 ≤ n ≤ 10 and x2 (n) = (0.8) n, 1 ≤ n ≤ 6. 3. from the previous question, calculate y (n) = x1 (n)+ x2 (n), and drawing.)

线性调频（LFM）脉冲压缩雷达仿真,线性调频脉冲压缩的Matlab程序，Word说明，运行结果(linear FM (LFM) radar pulse compression simulation, LFM Matlab pulse compression procedures, Word stated that operating results)

双谱法时延估计算法，经过仿真验证效果很好(Dual spectroscopy delay estimation algorithm through simulation works well)

matlab 编写的简单数字下变频仿真程序，含NCO模块、混频、低通滤波、抽取。模块大多采用matlab自带函数实现( program for DDC simulink base on Matlab)

OFDM系统发送机的matlab程序，采用的是16QAM调制方式。(OFDM system transmitter of the matlab procedure, using 16QAM modulation.)

效果最好的三种二值化的方法 otsu niblack等 是自适应阈值方法(The best effect of three kinds of binarization methods otsu niblack, etc Is the adaptive threshold value method。)

介绍OFDM信号的基本特征 4qam编码原理及实现(OFDM qam)

说明：  matlab程序，高阶谱分析，信号谱分析的方法一起就存在了，高价谱分析是当代信号处理的主要工具。-(Matlab procedures, higher order spectral analysis, signal spectral analysis method in existence, high spectral analysis of contemporary signal processing major tools. )

数字信号定时子程序，用于定时信号的最佳采样点。(Digital signal timing subroutine for the optimal sampling point timing signal.)

一个FDTD二维的经典程序，非常不错，适合初学者使用。(A classic two-dimensional FDTD program, very good, suitable for beginners.)