Matlab-spectrumananalysis

自动控制原理 胡寿松版 matlab 源代码(Principles of Automatic Control Shousong version matlab source code)

this program is about jpeg demo

多径效应的时域表示实际上就是不同路径来的信号存在随机的时延差。对于抗其它扩频信号干扰性能，及抗多址干扰性能。我们这里考虑简单的情况，只考虑一个用户干扰的情况，说明其具有抗多址干扰性能就行。(Multipath effect is actually a time domain representation of the signal path to the existence of different random time delay difference. Other spread spectrum signal for the anti-interference performance, and anti-MAI performance. Here we consider the simplest case, considering only one user interference, indicating its performance with anti-multiple access interference on the line.)

这是TD算法的逆过程，首先将时间序列，划分为相邻点的短序列，当然此时的拟合误差为0，因为第一点和第二点的连线，原始点都落在线段上。将相邻两个线段连接起来，此时每条线段包含三个原始点，计算中间那个点的拟合误差。这样，所有这些三个点的线段中的中间点的拟合误差计算出来后，找出误差最小且误差小于阀值R的分段，作为第一条包含三个点的线段。 在上面的基础上，第一条分段同样的和相邻线段连接，然后计算每一条分段的拟合误差，再找出误差最小且小于阀值R的分段，作为第二个分段。依次方式循环，直到所有分段的拟合误差都小于阀值R，分段结束。 (This is the reverse process of TD algorithm, the first time series is divided into short sequences adjacent dots, of course fitting error is zero at this time, because the first and second points of connection, the original point fall line on. The two adjacent segments are connected, then each segment contains three original point, the intermediate fitting error calculated that point. Thus, after all these segments fitting error of three points in the intermediate point calculated to find the minimum error and the error is less than the threshold R segment, as the first line contains three points. Based on the above, the first segment and the adjacent line segment connecting the same, and then calculate a fitting error for each segment, and then find the smallest error and less than the threshold R segment, as the second segment . Followed by a cyclic manner until all segments fitting error is less than the threshold R, segment ends.)

积分方程的数值解（matlab代码）利用MATLAB求解积分方程的数值解问题(The numerical solution of integral equations (matlab code))

这是基于滑膜观测器的永磁同步电机的无速度传感器的的模型，改模型能够切换到滑膜控制的速度估计。(This is a permanent magnet synchronous motor based on synovial observer without speed sensor model, change model can switch to the synovial control speed estimation)

捷联惯性导航系统的初始对准，程序。组合导航程序(inertial navigation alignment)

量子微粒群算法工具箱Quantum particle swarm optimization toolbox(Quantum particle swarm optimization toolbox)

该程序为用matlab编写的自适应滤波程序(The program prepared for the use of adaptive filtering matlab program)

Matlab环境下基频提取的代码，比较准确(Code to extract pitch in Matlab，which is comparatively correct)