primary_math_modeling

时间学列GP源程序，对预测非常有用，直接下载运行即可，傻瓜式运行，方便简单，尽快下载吧(Time to learn, GP source, the forecast is very useful, direct download can be run, fool-style operation, convenient and simple, as soon as possible to download it)

该工程实现2fsk的载频估计，返回2fsk两个载频估计结果。(The project is estimated to achieve 2fsk carrier frequency, return 2fsk two carrier frequency estimation results.)

matlab基于灰色理论的去除粗大误差的代码(remove coarse error matlab code based on gray theory)

自写较为完善的STBC空时分组编码的MATLAB源代码，包括G2(Alamouti),G3(码率1/2),G4(码率1/2),H3(码率3/4),H4(码率3/4)的五种正交编码矩阵，调制方式有BPSK、QPSK、8PSK、16QAM，得出了仿真值的误比特率BER曲线，连带给出了所有调制方式和编码矩阵的理论误比特率BER曲线。(This is a matlab code for stbc,including five kinds of coding matrix: G2(Alamouti),G3(rate 1/2),G4(rate 1/2),H3(rate 3/4),H4(rate 3/4) and many kinds of modulation,such as BPSK,QPSK,8PSK,16QAM etc.I present all the simulative BER figures and theory BER figure.enjoy:))

说明：  球体重力异常曲线正演，加噪音后异常曲线，最小二乘反演(Gravity anomaly curve ball forward, plus the noise of abnormal curve, least-squares inversion)

灰色理论认为系统的行为现象尽管是朦胧的，数据是复杂的，但它毕竟是有序的，是有整体功能的。灰数的生成，就是从杂乱中寻找出规律。同时，灰色理论建立的是生成数据模型，不是原始数据模型，因此，灰色预测的数据是通过生成数据的gm(1,1)模型所得到的预测值的逆处理结果。(Gray theory that the behavior of the system even though the phenomenon is dim, the data is complex, but still it is ordered, there is a whole function. Gray number generation, that is, from the clutter to find out the laws. Meanwhile, the gray theory is to generate the data model, not the original data model, so gray prediction data by generating data gm (1,1) model predicted values ​ ​ obtained result of the inverse process.)

通过编程得到正交的1egendre(N)函数序列(Orthogonal sequence of Legendre (N) functions obtained by programming)

说明：  用matlab实现的GSM TCH/FS系统在高斯信道、瑞利信道的性能仿真，其中用到了循环编码、卷积码、交织码等信道编码知识(Using matlab to achieve GSM TCH/FS system in the Gaussian channel, Rayleigh channel performance simulation, which uses a loop encoding, convolutional codes, interleaving codes channel coding knowledge)

SIMULINK简明教程，希望对初学者有用(simulink tutorial, I hope useful for beginners)

BLIND IDENTIFICATION OF LINEAR CHANNELS USING THE DATA CONSTELLATION