Electrical-System

说明：  利用costas环实现载波同步的matlab程序，载频10mHz(Costas loop to achieve carrier synchronization using the matlab program, carrier frequency 10mHz)

用Simulink中NCO模块产生正弦信号的程序，自己写的，采样率180MHz，正弦频率70MHz，可以直接运行。(Using Simulink module generates a sinusoidal signal of NCO program, sample rate 180MHz, sinusoidal frequency 70MHz, can be directly run.)

OFDM is a frequency-division multiplexing (FDM) scheme used as a digital multi-carrier modulation method. A large number of closely spaced orthogonal sub-carrier signals are used to carry data on several parallel data streams or channels.

graf of hysteresis, you must rued your txt file whit parameters and then matlab calculate hysteresis behaviour

algorithm to calculate the MMSE algorithm inlab mat

说明：  基于分组的DSL数字用户线的多用户动态频谱管理(Dynamic spectral management)

matalab一些基本运算，对于初学者来说很有用！(matalab some of the basic operations for the newcomer useful!)

In the last decades the Moore-Penrose pseudoinverse has found a wide range of applications in many areas of Science and became a useful tool for different scientists dealing with optimization problems, data analysis, solutions of linear integral equations, etc. At fi rst we will present a review of some of the basic results on the so-called Moore-Penrose pseudoinverse of matrices, a concept that generalizes the usual notion of inverse of a square matrix, but that is also applicable to singular square matrices or even to non-square matrices

关于QPSK星座图的部分程序，本人搜索到的，感觉挺好的，大家可以看看，参考一下。(QPSK constellation diagram on the part of the process, I searched, feeling quite good, we can see that reference.)

将贪婪修复方法与遗传算法相结合，构成混和遗传算法，并求解经典背包问题。(The greedy repair method and genetic algorithm are combined to form hybrid genetic algorithm, and solve the classical knapsack problem.)