BERvsSNRgen

说明：  数字音乐MATLAB处理，可以在MATLAB下进行混音，回响，延时，乐器的更改(Digital music MATLAB processing, can be carried out under the MATLAB mixing, echo, delay, musical instruments of change)

以中等纯度的精馏塔为研究对象，考虑到不等分子溢流的影响和非理想的汽液平衡，可以得到塔顶产品轻组分含量Y与回流量L之间的传递函数为： 其中由于现场环境干扰，输出带有测量噪声是（0，1）的正态分布序列，它的方差为ɑ=0.5。由于输出中带有很大的噪声信号，故将数字滤波技术中常见的低通滤波器由于偏差控制，滤掉其中的噪声信号，然后在对其进行PID计算，得到实际的控制量。在该方法在噪声较强的环境下，可以得到较好的控制效果。 控制要求： 1、 采用带低通滤波器的增量式PID将塔顶轻组分含量控制在0.99 2、 用ISTE法整定PID参数 3、 在控制过程中，到150周期加入幅度为-20 的阶跃干扰，在第300周期干扰消失。分析PID参数的抗干扰性。 (Medium-purity distillation column, taking into account ranging from molecular overflow and non-ideal vapor-liquid equilibrium, the transfer function between the light component content of the top product Y and the back flow L can be obtained as: Because the field of environmental interference, output with the measurement noise is a normal distribution (0,1) sequence, its variance ɑ = 0.5. As with a lot of noise in the output signal, it will be common in low-pass filter in the digital filtering techniques due to the bias control, filter out the noise signal, then its PID, the actual amount of control. In the strong noise environment, you can get better control effect. Control requirements: 1, using the incremental PID with a low-pass filter to the top of the tower content of light components in the 0.99 2, the method of ISTE tuning PID parameters 3, in the control process, to 150 cycles join the range of-20 step disturbance, disappearance of interference in the first 300 c)

vectline "vector field line plotter" Depending on the dimension of coordinate axis, vectline can plot both 3D and 2D vector field line.(vectline "vector field line plotter" Depe nding on the dimension of coordinate axis, vectline can plot both 3D and 2D vector field lin e.)

FM信号的调制解调的simulink仿真，亲自测试已经通过，大家可以放心下载使用。(FM signal modulation and demodulation simulink simulation, personally test has passed, you can be assured to download.)

说明：  用MATLAB仿真DS-BPSK超宽带通信系统性能(DS-UWB发射信号)(Using MATLAB simulation DS-BPSK UWB communication system performance (DS-UWB emission signal))

This program can calculate the correlation from integral

transfer function model

西安电子科技大学的雷达对抗实验报告。共19页，11个实验(Radar countermeasure experiment report )

改变声音信号采样频率。应分别考虑由低到高和由高到低，最好包括声音采集和回放等功能。(To change the audio signal sampling frequency. Should be considered separately from low to high and high to low, preferably including audio capture and playback functions.)

说明：  通过一个循环方阵A来构造准循环LDPC码的校验矩阵H(make H in QC-ldpc)