Filtering

对原始灰度图像进行图像压缩，对此图进行 8×8 DCT 变换后，分别只保留 DC系数，以及保留前 4、8、16 个变换系数(DC＋AC) ，然后再分别进行 IDCT 变换 (The original gray image compression, this map for 8 × 8 DCT transform, respectively, to retain only the DC coefficient, and to retain the former 4,8,16 months transform coefficients (DC+ AC), and then separately IDCT transform)

现代信号分析理论中，利用伯格功率谱分析信号(the burg power spectral analysis of signals in modern signal analysis theory)

For the 3d implementations, the source files for the in-core version are in the directory fdct3d

MPSK Simulation BPSK QPSK 8PSK

channel estimation using Ls and MMSE algorithms also calculates the Mean square error and SER

说明：  自己保存的北航的集和的sar代码 可以下载学习(Save your own beihang set and THE SAR code can be downloaded to learn)

说明：  七单元天线阵DOA估计 clear clc d=1 天线阵元的间距 lma=2 信号中心波长 q1=1*pi/4 q2=1*pi/3 q3=1*pi/6 q4=3*pi/4 四输入信号的方向 A1=[exp(-2*pi*j*d*[0:6]*cos(q1)/lma)] 求阵因子 A2=[exp(-2*pi*j*d*[0:6]*cos(q2)/lma)] A3=[exp(-2*pi*j*d*[0:6]*cos(q3)/lma)] A4=[exp(-2*pi*j*d*[0:6]*cos(q4)/lma)] A=[A1,A2,A3,A4] 得出A矩阵 n=1:1900 v1=.015 四信号的频率 v2=.05 v3=.02 v4=.035 d=[1.3*cos(v1*n) 1*sin(v2(we)

研一时做的音频检索的matlab代码，希望大家能用的上(Research a moment to do the audio retrieval matlab code, hope everyone can be on the)

这个是一个倒立摆的控制设计程序，用 c写的可执行文件(This is an inverted pendulum control design procedure)

selected matlab codes for numerical analysis numerical differentiation and root finding. Euler anf Ronge Kotta