QPSK

Matlab命令大全，很全面地包涵了Matlab的命令，方面学习查询。(Matlab order Daquan, very comprehensive bear the Matlab command, in learning about the query.)

function in cross entropy matlab

仿真产生OFDM信号；通过信道；实现解调。子载波用16QAM调制。(Simulation generate OFDM signals through the channel achieve demodulation. Subcarriers with 16QAM modulation.)

This function computes the backbone structure of a given weigthed graph (Matrix), keeping a minimum min_dens_nc degree for each node.

说明：  无人飞行器的仿真优化 针对无人飞行器的速度、隐身一体化技术、感知能力等方面进行优化设计。附：仿真流程图！(Simulation and optimization of the unmanned air vehicle 针对无人飞行器的速度、隐身一体化技术、感知能力等方面进行优化设计。 According to the vehicle speed, stealth technology integration, perceived ability and other aspects of optimization design.)

1、掌握用MATLAB计算拉格朗日、分段线性、三次样条三种插值的方法，改变节点的数目，对三种插值结果进行初步分析。 2、掌握用MATLAB作线性最小二乘的方法。 3、通过实例学习如何用插值方法与拟合方法解决实际问题，注意二者的联系和区别。(1. Grasp by matlab calculating Lagrange, segement linear, 3rd order spline these 3 interpolation method. Analisize the 3 interpolation results by changing the No. of points. 2. Grasp the method of linear minimun 2 product mehtod using matlab. 3. Solve the practical problems though the study of example of how to use interpolation and fitting method. Pay attention to the relation and difference of the 2 methods.)

说明：  初学matlab的一些课后习题，有助于各位初学者学习实践(Matlab beginner exercises some after-school help you study and practice for beginners)

计算机内存分配，首次适应策略、最佳适应策略、循环适应策略、最坏适应策略。matlab代码，略简单(Storage Allocation First_fit/Best_fit/Next_fit/Worst_fit)

点散射方法进行混响仿真，信号为单频信号，散射体高斯分布，无多普勒频域(Reverberation simulation, signal point scattering method for single-frequency signal, the scattering body Gaussian distribution)

说明：  使用EKF算法处理PIX飞控的IMU数据(analysis the pix's log with ekf algorithm)