quxian

用matlab工具显示一个语音信号的语谱图，显示共振峰等特征(Using matlab tool displays a voice signal of the language spectrum, showing characteristics of formant)

通过遗产算法计算函数最小值的MATLAB程序代码。GA GP (Heritage minimum of MATLAB program algorithm)

2MSK调制解调 双极性信号输入 产生简单直观的误码率图(2MSK modem Bipolar signal input to a simple and intuitive diagram of bit error rate )

主动声纳浅海信道仿真函数。在已知浅海声速梯度，声源深度，接收器深度的情况下进行仿真。(Active sonar shallow water channel simulation function. Simulation in the case of shallow water velocity gradient is known, the depth of the sound source, the receiver depth.)

1） 借助MATLAB画出误差性能曲面和误差性能曲面的等值曲线； 2） 写出最陡下降法， LMS算法的计算公式（ ）； 3） 用MATLAB产生方差为0.05,均值为0白噪音S(n)，并画出其中一次实现的波形图； 4） 根据2）中的公式，并利用3）中产生的S(n)，在1）中的误差性能曲面的等值曲线上叠加画出采用最陡下降法， LMS法时H(n)的在叠代过程中的轨迹曲线。 5）用MATLAB计算并画出LMS法时 随时间n的变化曲线（对 应S(n)的某一次的一次实现）和e(n)波形；某一次实现的结果并不能从统计的角度反映实验的结果的正确性，为得到具有统计特性的实验结果，可用足够多次的实验结果的平均值作为实验的结果。用MATLAB计算并画出LMS法时J(n)的100次实验结果的平均值随时间n的变化曲线。 6）用MATLAB计算并在1）中的误差性能曲面的等值曲线上叠加画出LMS法时100次实验中的H(n)的平均值的轨迹曲线； 7）对以上实验结果给出一些你认为有价值的讨论。 （在实验中n=1,,…..N,N的取值根据实验情况确定，一般选取足够大以使算法达到基本收敛，本题作业以电子文档PDF格式提供） (1) With MATLAB to draw the contours of the error performance surface and error performance surface 2) Write down the steepest descent method, the LMS algorithm formula () 3) using MATLAB variance 0.05, mean 0 white noise S (n), and draw one to achieve the waveform diagram 4) According to the formula 2), and using 3) S (n) produced in 1), the error performance of the contours of the surfaces superimposed on draw using the steepest descent method, the LMS method is H (n) in the iterative process in the trajectory curve. 5) curve to calculate and draw the LMS method using MATLAB with time n (time corresponding to the S (n) of a first implementation) and e (n) waveform reflect a certain time to achieve results not from a statistical point of experiment the correctness of the results obtained with the experimental results of the statistical properties of the available sufficient times the average of the experimental results as a result of the experiment. Calculate and draw the LMS m)

机械结构RRR-PRP运动学仿真，包括速度，加速度的仿真结果，里面有运动仿真模型和M文件。(Mechanical structure RRR-PRP kinematics simulation, including speed, acceleration simulation results, there is a motion simulation model and the M-file.)

基于Matlab-Simulink仿真的双闭环直流调速系统的设计与研究 如题,设计要求、设计公式及计算过程比较清晰,格式也是按照标准设置的,正文限于公式编辑的格式,排版不是太完美(Design and Research of Matlab-Simulink simulation of double-loop DC speed control system, such as the title, design requirements, design formulas and calculation process is relatively clear, but also in accordance with the standards set by the format, text format is limited to a formula editing, typesetting is not perfect)

Creating the training and testing sets

说明：  经典功率谱估计的matlab仿真。利用的是直接法(classic power spectrum estimation of Matlab simulation. The use of the direct method)

此算法为用于解反问题的lsqr算法，对Ax=b，输入矩阵A，列向量b，以及迭代步数，求得列向量x(This algorithm is used for solution of the inverse problem lsqr algorithm, Ax = b, the input matrix A, the column vector b, as well as the number of iterative steps, to seek the column vector x)