光束在自由空间以及各种介质中传播

通过matlab读取从传感器中获取到的数据文件（excel格式），将时间戳转换为标准时间(Read the data file (Excel format) from the sensor through the MATLAB and convert the timestamp to the standard time)

说明：  阵列信号处理中DOA估计及DBF技术研究 论文说明:基本介绍几原理讲解(DOA Estimation and DBF Technology in Array Signal Processing)

lpc2xxx开发板，字库文件说明文档-lpc2xxx development boards, font document documentation.

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应用于矩形微带天线尺寸长和宽的计算程序(Size of rectangular microstrip antenna)

利用扩展卡尔曼滤波，进行双艇协同导航，距离量测信息加入，主从式结构(Using extended Kalman filter, double-vessel coordinated navigation, distance measurement information to join, master-slave structure)

说明：  fxgbfsdrt fsfgsvdcccdrs rrtsr

shell编程中经常用到sed命令，本文详细介绍了shell常用命令sed详细用法(sed will be usually used when shell coding)

最近 LCC 谐振变换器备受关注，因为它优于常规串联谐振变换器和并联谐振变换器：在负载和输入变化较大时，频率变化仍很小，且全负载范围内切换可实现零电压转换（ZVS）。本文介绍了LLC型谐振变换器的分析方法，回顾了LLC型谐振变换器的实际设计要素。其中包括设计变压器和选择元器件。采用一设计实例，逐步说明设计流程，有助于工程师更加轻松地设计LLC谐振器。(Recently LCC resonant converter has attracted much attention, because it is better than that of the conventional series resonant converter and parallel resonant converter in the load and input change, frequency change is still very small, and the whole range of the load switch can realize zero voltage switching (ZVS). In this paper, the analysis method of LLC resonant converter is introduced, and the practical design elements of LLC resonant converter are reviewed. Including the design of transformers and components. A design example is used to explain the design process step by step, which is helpful for engineers to design LLC resonators more easily.)

迷宫 随机产生用方块代替的地图，在里面设置入口和出口，并最终找出最短的路径-Box instead of randomly generated maze with a map inside entrance and exit, and ultimately find the shortest path