space_time_coding

一个实现循环卷积、因式分解的参考程序，程序简洁易懂(A realization of cyclic convolution, Factorization reference procedure, the procedure easier to understand)

projet chaotique for chiffrement and dechiffrement

extended kalman filter for SOC estimation

说明：  考虑网络约束、天然气节点约束、潮流约束的电-气耦合互补系统的最优出力情况(The optimal output of the electricity-gas coupled complementary system considering network constraints, natural gas node constraints, and power flow constraints)

A DC/DC Boost Converter was developed using the simulink tool box

实现大点数的IFFT变换，先进行小点数IFFT变化，然后再进行过采样滤波，有频谱图及例子(Achieve great points IFFT transform, first have a small point IFFT change, and then over-sampling filter, a spectrum and examples)

This is the source code for various digital modulation schemes(QAM,MSK,DPSK,MFSK,QPSK)

说明：  实现无线传感器网络或者蜂窝网中的三种节点定位算法：CLS、质心算法、DV-Hop算法(Wireless sensor networks or cellular networks of the three localization algorithms: CLS, centroid algorithm, DV-Hop Algorithm)

用来解薛定谔方程的很好的代码，可以解氢原子及类似的原子的本征能谱(Solution of the Schrodinger equation for a good code, and similar solutions of hydrogen atoms in the intrinsic spectrum)

因为傅立叶变换对应的是无限信号,信号经过分帧后变成有限信号,分帧的信号再进行傅立叶变换后,高频部分将有 泄露 ,所以要加窗. 窗函数的拼谱都是在某高频部分截止,所以每帧信号加窗后的傅立叶变化,频谱基本 泄露 (Because Fourier transform corresponding is infinite signals, signals after framing become limited, framing signal again after Fourier transform, the high frequency part will have leaked , so to add window. Window function spell spectrum are in a high frequency part of the globe, so each frame and window after Fourier transform, signal spectrum basic leak )