4

说明：  图论算法 求SAP矩阵的基本思想是图的最短路的问题。 由于铁路的运输费用与线路的长度不是线性关系，必须对铁路网做一些预处理才能套用图的标准最短算法。 (SAP matrix graph theory algorithm for getting the basic idea is to map the shortest path problem. Since the railway transport costs and the length of line is not a linear relationship, we must do some preprocessing on the rail network to apply a standard graph algorithm shortest.)

对一个模拟信号进行fft变换，并求出其幅值图和相位图，对于fft初学者会有一定的用途(An analog signal fft transform, and find its magnitude and phase diagrams, for beginners there will be some use of fft)

说明：  power storage battery

水下航行器的一种基于UKF的导航仿真程序(AUV navigation based simulation program UKF )

覆盖了全书的信号与线性系统、随机过程、模拟调制、模拟数字转换、基带数字传输、带限信道的数字传输、载波调制的数字传输、信道容量和编码、扩频通信系统以及数字调制方法的SIMULINK仿真的 源代码(Book covers the signal and linear systems, stochastic processes, analog modulation, analog-to-digital conversion, base-band digital transmission, band-limited digital transmission channel, the digital transmission carrier modulation, channel capacity and coding, spread spectrum communication systems, and digital modulation SIMULINK simulation method source code)

对pmu配置的一群算法，绝对简单好用，对遗传算法的一种改进(Pmu configuration of a group of algorithms, absolutely easy to use, an improved genetic algorithm)

《MATLAB/Simulink建模与仿真实例精讲》第二章相关程序，保证可以运行(" MATLAB/Simulink modeling and simulation instance succinctly related procedures, to ensure that you can run)

简易的录音功能。通过audiorecorder函数实现录音的功能。比电脑自带的录音好很多(Simple recording function. By recording audiorecorder function. Much better than the computer comes with the recording)

虚拟力的无线传感网络覆盖，基于chebyshev的水声信号分析，有较好的参考价值。( Virtual power wireless sensor network coverage, Based chebyshev underwater acoustic signal analysis, There are good reference value.)

文章关于自适应的卡尔曼的算法在变形数据处理上的应用(Application of the Calman on the adaptive algorithm in data processing of deformation on the)