features_extraction_4files

混沌的一些具体行为，混沌的分岔等等理论，以及混沌的一些特征问题等等。(Some of the specific acts of Chaos, chaos theory of bifurcation, etc., as well as problems, and so some of the characteristics of chaos.)

实现bpsk的调制解调 ，有图，基于matlab仿真 (Achieve bpsk modulation and demodulation, a map)

LMS ALGORITHM CODE TO SUPPRESSION ECHO

用matlab实现 Horizontal_Bar_Plot(draw Horizontal_Bar_Plot using matlab)

matlab simulink model of an uninterrupted power supply

说明：  提出了正交频分复用(O FDM ) 系统中一种新的载波频偏估计算法L 载波频偏估计过程可分 为获取和跟踪, 其中, 获取过程和时间同步是同时完成的L新算法可实现的最大载波频偏获取范围 是整个信号带宽的一半L新的跟踪算法是一个最大似然算法, 在加性白噪声高斯信道(AW GN ) 下, 当N (训练序列长度的一半) 等于128 时, 其性能比Schm idl 算法提高约7127 dB 在多经信道下, 当 信噪比不是很高时, 新算法仍具有优势L(new carrier f requency offset est imat ion scheme in o rthogonal f requency division mu lt ip lex ing (O FDM ) system is p ropo sed. The carrier f requency offset est i2 mat ion includes acqu isit ion and t rack ing, and acqu isit ion as w ell as t im ing synch ro2 n izat ion can be perfo rmed simu ltaneou sly w ith h igh accu racy. The max imum acqu i2 sit ion range can be up to one half of overall signal bandw idth. The p ropo sed t rack2 ing est imato r is a max imum 2likelihood est imato r, and in AW GN channel, abou t 7127dB imp rovemen t is ob tained compared to the Schm idl’s algo rithm w hen N = 128 in mu lt ipath channel, the p ropo sed algo rithm wo rk s w ell at moderate SNR.)

全桥整流电路的MATLAB仿真 (Simulation using MATLAB )

说明：  虹膜识别matlab的源代码用到霍夫曼变换(iris recognization)

程序运用matlab语言，读取了电流数据，并对电流数据进行了经验模态分解，观察分解各层的特征(Program using matlab language, read the current data, and current data were empirical mode decomposition, the decomposition observed characteristics of the layers)

使用l1-svd的方法求解DOA估计问题(Using the l1-svd method to solve the DOA estimation problem)