FFT-frequency-analysis

线性调频信号的累加器实现，用于产生线性调频信号，线性调频信号可以用于超声信号的发射，音箱的检测等。(Linear frequency modulated signal to achieve the accumulator, for the production of linear FM signals, linear frequency modulated signal can be used to launch ultrasonic signals, such as speaker detection.)

对但自由度阻尼体系进行模拟，在体系振动的同时，画出阻尼衰减曲线(However, damping of the system degree of freedom simulation, vibration in the system at the same time, draw damping attenuation curve)

这是关于rayleigh衰落信道的仿真mat源程序与大家共享(on rayleigh fading channel simulation mat source files and share)

齿轮的一个构建文件，matlab真的很厉害哈，我要好好学 恩恩(A build file gear, matlab really very powerful Ha, I must learn Blessings)

一个非常好的基于MATLAB的飞机动态控制工具箱,对于从事该方面研究的读者非常有参考价值(a very good aircraft based on MATLAB Toolbox dynamic control, engaged in the study of readers very valuable reference)

无约束一维极值/无约束多维极值/约束优化/非线性最小二乘优化/线性规划/整数规划/二次规划/遗传优化算法等对应的matlab程序(Unconstrained one-dimensional extremal/unconstrained multidimensional the pole/constrained optimization/nonlinear least squares optimization/linear programming/integer programming/Quadratic Programming/genetic optimization algorithm matlab program)

lms echo cancellation

This paper investigates the design of joint frequency offset and carrier phase estimation of a multi-frequency time division multiple access (MF-TDMA) demodulator that is applied to a digital video broadcasting—return channel system via satellite (DVB-RCS). The proposed joint estimation algorithm is based on the interpolation technique for two correlation values in the frequency and phase domains. This simple interpolation technique can significantly improve frequency and phase resolution capabilities of the proposed technique without increasing the number of the correlation values. In addition, the overall block diagram of a digital communications receiver for DVB-RCS is presented, which was designed using the proposed estimation algorithms. Index Terms—Carrier phase estimation, DVB-RCS, frequency offset estimation, interpolation, joint estimation, MF-TDMA.(This paper investigates the design of joint frequencyoffset and carrier phase estimation of a multi-frequency time divisionmultiple access (MF-TDMA) demodulator that is applied toa digital video broadcasting-return channel system via satellite (DVB-RCS). The proposed joint estimation algorithm is based onthe interpolation technique for two correlation values in the frequencyand phase domains. This simple interpolation techniquecan significantly improve frequency and phase resolution capabilitiesof the proposed technique without increasing the number ofthe correlation values. In addition, the overall block diagram of adigital communications receiver for DVB-RCS is presented, whichwas designed using the proposed estimation algorithms.Index Terms-Carrier phase estimation, DVB-RCS, frequencyoffset estimation, interpolation, joint estimation, MF-TDMA.)

MATLAB function to calculate combination

核主元分析程序，利用核函数将非线性数据映射到线性空间，再利用主元分析提取特征数据。(KPCA procedure uses the kernel nonlinear data mapped into linear space, and then using principal component analysis to extract feature data.)