FFT

使用差分法解一类Bessel方程在不同边界条件下的离散解(the use of differential method for a type Bessel equation in different boundary conditions of the Discrete Solutions)

用matlab代码写的最炫民族风，代码详细，可直接运行。(Matlab code to write the most unusual national wind code in detail, can be run directly.)

《通信系统仿真原理与无线应用》系统地介绍通信系统的设计、分析和仿真方法，还提供了大量极具参考价值的仿真实例。《通信系统仿真原理与无线应用》的全部仿真程序都是采用MATLAB编写的。这不仅方便读者理解仿真的实现过程，还允许读者修改或使用这些代码段来进行自己的仿真开发。章后提供了大量的参考文献和经过精心设计的各类练习题，方便教学。 此为英文原版书籍(Principles of Communication Systems Simulation with Wireless Applications is a hands-on, example-rich guide to simulating wireless communications systems. The first book to present complete MATLAB simulation models for predicting the impact of design changes, it treats every aspect of simulation: sampling, signal and system representations, filters, noise, Monte Carlo simulation, postprocessing, nonlinear and time-varying systems, waveform and discrete channels, co-channel interference, and more. It includes four detailed case studies.)

creates round of leach protocol in matlab

MATLAB和Mathematica、Maple并称为三大数学软件。它在数学类科技应用软件中在数值计算方面首屈一指。MATLAB可以进行矩阵运算、绘制函数和数据、实现算法、创建用户界面、连接其他编程语言的程序等，主要应用于工程计算、控制设计、信号处理与通讯、图像处理、信号检测、金融建模设计与分析等领域。(MATLAB is a powerful language for technical computing. The name MATLAB stands for MATrix LABoratory, because its basic data element is a matrix (array). MATLAB can be used for math computations, modeling and simulations, data analysis and processing, visualization and graphics, and algorithm development.)

generate the random variable follow Gamma-Gamma distribution

双历元GNSS辅助SINS动态初始对准方法，获得初始时刻的位置、速度、姿态等的信息。含有初始对准程序以及测试程序，四元数计算程序(Dual Dynamic epoch GNSS assistance SINS initial alignment method to obtain the initial time position, velocity, attitude and other information. Containing the initial alignment procedures and testing procedures, quaternion calculation program)

说明：  用Matlab实现线性调频信号仿真的程序,观察时域波形和幅频特性(use Matlab to achieve the linear frequency modulation signal simulation program, observe the time domain waveform and amplitude-frequency characteristics)

只需修改路径就可以直接处理心电数据，但是数据格式是txt的，而且数据是R的横坐标。可以画散点图，密度图，功率谱分析等。(It is useful and easy for processing the ECg data with MATLAB。)

16QAM系统的调制,解调的仿真。作出星座图及调制，解调信号的波形，输出信号的功率谱，眼图及误码率曲线。(16QAM system, modulation, demodulation of the simulation. Make a constellation and the modulation, demodulation waveform, the output signal of the power spectrum, eye diagram and BER curves.)