on-ground-based-gps

matlab的楚翔处理，色彩增强，二值滤波，旋转放大等功能，图像识别(the matlab Chu Xiang processing, color enhancement, binary filtering, rotation, zoom, image recognition)

轨道交通牵引供电的一个初步模型，给分析暂态一个很好的方向。(A preliminary model of traction power supply for rail transit provides a good direction for transient analysis.)

解方程例子，含有很多例子，弄到可不容易，提供参考(Examples of solving equations, containing many examples is not easy to get and provide information)

包含大量的MATLAB使用技巧,非常实用(Contains a large number of MATLAB tips, very useful)

绘图与可视化matlab代码，其中有几个例题，可以是读者轻松学会(Drawing and visualization of the matlab code, which has several examples, can be easily learned)

Simulink is a graphical extension to MATLAB for the modeling and simulation of systems. In Simulink, systems are drawn on screen as block diagrams. Many elements of block diagrams are available (such as transfer functions, summing junctions, etc.), as well as virtual input devices (such as function generators) and output devices (such as oscilloscopes). Simulink is integrated with MATLAB and data can be easily transferred between the programs. In this tutorial, we will introduce the basics of using Simulink to model and simulate a system.

MUSIC算法DOA估计与信噪比的关系模拟2个独立窄带信号分别以20°，60°的方向入射到均匀线阵上，信号间互不相关，与噪声相互独立，噪声为理想高斯白噪声，阵元数为10，阵元间距为入射信号波长的1／2，快拍数为200，信噪比分别为-20dB，0dB，20dB。(MUSIC DOA estimation algorithm relationship with SNR)

说明：  tabu search for tsp by matlab

自适应外差滤波器matlab代码：采用调制技术，控制正余弦信号对准干扰的频率，将输入的干扰搬移到的低频进行滤波，滤波处理后的信号再经过一次调制搬移到原来的频率位置，这样我们就得到了合适的干扰复制信号，再将输入信号和干扰复制信号进行差分运算达到抑制干扰的目的(Adaptive heterodyne filter matlab code)

Gradient Estimation by Derivative Measurement Method, LMS