detect_face

Yule—Walker方程构造信号的AR模型,Burg递推算法计算不同阶数的预测器系数(Yule-Walker equation for constructing the signal of AR model, Burg recursive algorithm to calculate the number of different order predictor coefficient)

sas的聚类程序 可以当聚类的模版用 适用于初学者(sas cluster clustering procedure can be applied to the template to use for beginners)

基于最少方差算法的电流50次谐波的Matlab的M文件程序，用于谐波分析(Current is 50 times harmonic based on minimum variance algorithm Matlab M file, used for harmonic analysis)

ITU标准下的大气传播衰减计算程序，使用简单方便，只需要输入传播角度，高度，气候环境，即可计算大气传输损耗（不包括自由空间传播损耗）(According to the ITU standard, this program calculates the atmospheric loss. It is simple to use, you only have to input some parameters such as height, elevation angle, etc)

qpsk调制解调 脉冲成型 信道噪声 抽样 检波(qpsk modem pulse shaping)

ASK Modulation using MATLAB

Converts cartesian coordinates in WGS84_XYZ to geodetic coordinates in WGS84_LLA. Vectorized version.

卫星通信系统中链路损耗与距离的关系，希望可以有帮助。(Relationship satellite communication systems link loss and distance, hoping to help.)

一、 本程序采用16QAM调制方式，对一串2进制信源进行调制，用升余弦滚降函数进行基带调制，再调到高频信道；在信道上加入高斯白噪声，运用匹配滤波器解调，画出解调星座图，运用最小欧氏距离译码判决，计算误比特率。(First, this program uses 16QAM modulation mode, for a string of two binary source is modulated with a raised cosine roll-off function for base-band modulation, and then transferred to high-frequency channel in the channel by adding Gaussian white noise, the use of matched filter device demodulator, draw demodulation constellation, using the minimum Euclidean distance decoding decision, calculate bit error rate.)

说明：  压缩文件夹中包含二十几个ＭＡＴＬＡＢ编写的仿真程序，包括ＧＭＳＫ信号的调制仿真，ＰＮ码生成，ＦＩＲ滤波器的设计，ＧＯＬＤ序列的生成等等，另外还有许多经典的滤波器变换的小程序(compressed file folder containing 20 prepared by several MATLAB simulation program, including GMSK modulation signal simulation, PN code generation, FIR filter design, GOLD sequence generation, etc., in addition to many classic filter transform small program)