Chaotic-Secure-Communication

many type of watermarking source code in running condition

the code fo numerical methode for cfd.

多载波调制(Multicarrier Modulation)采用了多个载波信号。它把数据流分解为若干个子数据流，从而使子数据流具有低得多的传输比特速率，利用这些数据分别去调制若干个载波。所以，在多载波调制信道中，数据传输速率相对较低，码元周期加长，只要时延扩展与码元周期相比小于一定的比值，就不会造成码间干扰。因而多载波调制对于信道的时间弥散性不敏感。多载波调制可以通过多种技术途径来实现，如多音实现(Multitone Realization)、正交多载波调制(OFDM)、MC-CDMA和编码MCM(Coded MCM)。其中，OFDM可以抵抗多径干扰，是当前研究的一个热点。(Multi carrier modulation (Multicarrier Modulation) uses multiple carrier signal. It decomposes a data stream into a plurality of sub data stream, so that the sub data stream transmission bit rate is much lower, respectively to a plurality of carrier modulation using these data. )

基于ofdm的窗口技术。。。。。。。。。。。(OFDM with windowing)

gold序列的matlab仿真，生成gold序列，对于扩频跳频通信系统非常有用的好代码，直接用即可。(matlab gold sequence of simulation, generate gold sequence for frequency hopping spread spectrum communication system is very useful for good code can be directly used.)

在matlab中实现十进制到有符号定点二进制的转换(To achieve in matlab decimal to binary signed conversion of fixed-point)

commande vectoriel of machine double feed induction

一个STBC的经典仿真程序，具有很好的参考价值(a classical simulation program is a good reference value)

自适应波束成形室内模型matlab的mimo技术仿真(Adaptive beam forming model Matlab MIMO technology simulation )

机器学习和模式识别工具包spider。内容很丰富。包含svm 决策树（C45,J48）、svm、knn、adaboost、bagging、hmm（隐马尔科夫模型）、随机树（random forest）等(Machine learning and pattern recognition toolkit spider. Very rich in contents. Tree contains svm (C45, J48), svm, knn, adaboost, bagging, hmm (hidden Markov model), random trees (random forest), etc.)