manchest_code

通信原理中以ASK信号为例,对其进行频率估计.先产生ASK信号,然后通过FFT对其进行频率估计.(Communication Theory in the ASK signal as an example, its frequency is estimated. ASK signal generated first, and then through its FFT frequency estimation.)

Replacement for normprod that correctly treats 0, Inf, -Inf in the weights.

matlab与python的混合编程，在python中可以通过dll或者com方式调用matlab程序(matlab mixed programming with python, matlab program in python can be called by the dll or com)

高速铁路路基沉降是一个复杂的系统过程,涉及不同时期、不同工况,选用单一的预测模型不足以反映路基整体的变形规律.Logistic模型及Verhulst模型的曲线均为S形,可以反映全过程的地基沉降与时间的关系.针对路基填筑期和降水期两个时段利用MATLAB软件编制程序计算模型参数,得到Logistic模型和灰色Verhulst模型,进而求得两者的最优加权组合模型.对比结果表明:在路基填筑期由两者的最优加权组合模型预测得到的结果与实测结果较吻合,拟合精度高于单一模型 而在降水期Verhulst模型的预测值更接近实测值,平均相对误差约为1.75％,拟合精度较高.(High-speed railway subgrade settlement process is a complex system involving different times and in different conditions, the choice of a single forecasting model does not adequately reflect the overall deformation of roadbed. Curve Logistic model and Verhulst models are S-shaped, the whole process can be reflected foundation settlement versus time. against roadbed construction period of two hours and precipitation using MATLAB software programming model parameters, the Logistic model and gray Verhulst model, and then get the optimal model of a weighted combination of the two. comparative results indicate : results and experimental results in the roadbed construction period by the weighted combination of the best of both models predicted than the anastomosis fitting accuracy than a single model precipitation predicted value of Verhulst model closer to the actual value of the average relative error approximately 1.75 fitting accuracy.)

Kalman filter for speed-sensorless DC motor drive

matlab dsp(1． 利用自相关函数法和周期图法实现随机信号的功率谱估计。 2． 观察数据长度、自相关序列长度、信噪比、窗函数、平均次数等对谱估计的分辨率、稳定性、主瓣宽度和旁瓣效应的影响

基于粒子滤波的故障检测，使用状态估计和残差平滑的方法(Particle filter-based fault detection, the use of state estimation and residual smoothing method)

无线传感器遗传定位算法MATLAB源码。欢迎交流学习。(Location Algorithm for Wireless Sensor genetic MATLAB source code. Welcome to communicate study.)

关于模拟退火解决旅行商问题的代码，简单易学，非常有用(simulated annealing)

蚁群算法，计算各个城市之间的线路问题，使用matlab实现(aco ant colony optimization，matlab)