cryptography

自己实现的一维、二维DFT。优点：变换后的低频分量在中间，弥补了matlab库函数的不足（高频分量在中间）(Realize their own one-dimensional, two-dimensional DFT. Advantages: low-frequency components after the transformation in the middle, made up for the inadequacy of matlab library function (high-frequency component in the middle))

用matlab编写的64位的正交幅度调制，可运行，且会出图形！(64QAM)

说明：  matlab下的有用的时频分析工具箱，包括各类调频信号的生成，频率相位提取(matlab useful under the time-frequency analysis toolbox, including the generation of various types of FM signals, frequency-phase extraction)

K-S，即kolmogorov检验法，亦称拟合优度检验法。用来检验给定的一组数据是否来自分布F=F0，原理是若H0成立，则max|v/n-F0(qj)|应该很小，用手算几乎在绝大多数情况下是不可能的，通常借助统计软件，如SAS，S+等(K-S, namely Kolmogorov test, also known as goodness of fit test. It is used to test whether a given set of data comes from the distribution F=F0, and the principle is that if the H0 is set up, the max|v/n-F0 (QJ) should be very small, and the hand calculation is almost impossible in most cases, usually with the aid of statistical software, such as SAS, S+, etc.)

neural network based speech detection

将数据调制为wifi传输制式的波形，支持BPSK，QPSK，QAM等调制。配置安捷伦E4438C矢量信号发生器，输出带载波的wifi信号(The data transmission system of the modulation waveform for the wifi support BPSK, QPSK, QAM modulation, etc.. Configure the Agilent E4438C vector signal generator, the output signal with a carrier wifi)

Synthetic Aperture Radar (SAR) Raw Signal Simulation

levy飞行改进pso,更好的pso改进措施，大家可以看看(levy_Flight to improve pso)

MATLAB模型：HMIPv6&MIPv6在AR数增加情况下的延迟(MATLAB model: HMIPv6 total additional overhead)

说明：  LMS语音信号去噪matlab代码，可以对一段较长的语音信号进行去噪(LMS speech signal denoising matlab code, you can denoise a long speech signal)