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HHT法国人算法中，一个谱分析时绘图的函数(French HHT algorithm, a spectral analysis of the function mapping)

1. 图像二值化 2. 边界跟踪，去除离散点 3. 边界提取 4. 删除短边 5. 区分河流与道路 先找到桥梁，利用桥梁上的种子点 对道路进行跟踪，从而提取整条主干道。 (1 image binarization 2boundary tracking, removal of discrete points 3 boundary extraction 4 Remove the short side 5 distinguish rivers and roads the curvature is too large) First find the bridge, the bridge on the use of seed points on the road to follow, thereby extracting the whole trunk.)

Digital signal processing is the important aspect of modern communication system. here is the matlab code given which helps for the beginers for understanding the basics of DSP.

航位推算代码，内含三种常见的平滑处理方法代码 内含部分数据(Dead reckoning code, containing three common smoothing method code)

this code one of example design antenna by rotating vector

几个关于OFDM仿真原始代码，对学习相关内容的人有些帮助.(OFDM simulation source code)

产生正交的AM信号和FM信号，信号为复信号，含有I路和Q路，FM信号可设置调制指数变量，运行后可看到仿真时域及其频谱图(Generate quadrature AM signal and FM signal, the signal for the complex signal containing I and Q Road Road, FM signal modulation index variable can be set to run after seeing the time-domain simulation and spectrum)

说明：  对SAR成像进行研究，对于进行SAR成像开发的同学有一定的借鉴意义(The research on SAR imaging has certain reference significance for the students who are engaged in SAR imaging development)

波达方向估计；MUSIC算法；改进MUSIC算法；修正MUSIC算法(Key words：Direction ofArrival(DOA)estimation；Multiple SignalClassification(MUSIC)algorithm；improved MUSIC algorithm；modified MUSIC algorithm)

这时极短软件抗干扰方面的程序代码，希望对大家有帮助。(very short time the anti-jamming software code, and I hope to be helpful.)