l1_classification

十个关于基本函数测试的函数编程。关于MatLAB的函数编程(the ten function about basemarched try in matlab)

to solve the ordinary differential equation given as x^2 u - 2x u - 4u = x^2, 10 < x < 20 u(10) = 0 and u(20) = 100 using 10 linear elements

说明：  复杂背景下目标的快速提取和目标的跟踪研究。(Follow-up study of the complex context of rapid extraction of goals and objectives.)

小波包分析提取振动信号中的特征频率，含噪脉冲信号进行相关检测,包括调制，解调，信噪比计算。( Wavelet packet analysis to extract vibration signal characteristic frequency, Noisy pulse correlation detection signal, Includes the modulation, demodulation, signal to noise ratio calculation.)

本设计主要对4PSK调制方式的信号，利用MATLAB的m文件进行最佳接收机的设计与仿真。对输入的叠加噪声的4PSK调制信号进行接收，利用相关解调器来实现信号解调，及最大似然准则来实现检测器。在相关解调器中，接收信号分别与基函数 和 相乘再积分。在检测器中，利用相位来判断输出，从而最终得到接收的数据。采用随机二进制数通过4PSK调制后叠加高斯白噪声再对设计的接收机进行测试，从测试的结果可看出，在信噪比大于-8dB时，误码率为0，说明该接收机较好的实现了抗噪声性能。(The design of the main 4PSK modulation mode of the signal, the use of MATLAB m file for the best receiver design and simulation. The 4PSK modulated signal of the input superimposed noise is received, and the demodulator is realized by the relevant demodulator, and the maximum likelihood criterion is used to realize the detector. In the associated demodulator, the received signal is multiplied by the basis function and multiplied by the basis function. In the detector, the output is judged by the phase, and finally the received data is obtained. Using the random binary number through 4PSK modulation after the superposition of white noise and then the design of the receiver to test the test results can be seen in the signal to noise ratio greater than-8dB, the bit error rate is 0, indicating that the receiver is better The realization of the anti-noise performance.)

mathematica中的构造基本向量和矩阵构造方法，方便初学者学习(the method of the constitution of basic matrix and calculous in mathematica,so easy for the starting student)

一份很好的MATLAB课件，对于入门者很实用。(MATLAB, a very good software, very useful for beginners.)

OFDM系统的实现过程包括收发端的调制解调过程(OFDM system implementation process, including the process of sending and receiving end of the modem)

先进PID控制MATLAB仿真（第3版）/刘金琨 中的第一章仿真程序(Advanced PID control MATLAB simulation (3)/Liu Jinkun Chapter emulator)

锁相环在通信中使用非常普遍，此代码用matlab编写，经过测试通过，锁相环仿真（源程序与仿真结果）(Phase-locked loop used in the communication is very common, this code using matlab prepared, tested and approved, phase-locked loop simulation (source code and simulation results))