shuangxian

周期高斯一介导、高斯二介导即高斯脉冲（即UWB信号）的功率谱图像，对应不同的占空比和不同的脉冲形式，随着阶数的增加中心频率右移，频谱也为高斯形式，且随着周期数增多，呈现线谱形式(Cycle Gaussian ordinary derivative, ie the Gaussian two-mediated Gaussian pulse (the UWB signal) of the power spectrum image, corresponding to different pulse duty cycle and a different form, with the increase of the order of the center frequency shifted to the right, the spectrum also Gaussian form, and with the number of cycles increased, showing the form of line spectrum)

综述了光纤光栅传感器近年来在工程结构健康监测、石油产业、电力行业、岩土工程、航空航天、采矿、爆破、交通及 医学等各个领域的应用情况。文章认为，限制光纤光栅传感器产业化和大规模应用的主要因素是缺乏统一的设计理论 和制作方法，这使得不同厂家生产的传感器规格存在差异。另外，由于复杂的生产技术和精细的生产过程使传感器生产 成本较高，而且能实际应用的光纤光栅传感器的解调产品并不多，且价格很高。根据上述分析，文中对该项技术未来的 发展方向提出了展望。(Overview of FBG sensors in recent years in various fields of engineering structural health monitoring, oil industry, power industry, geotechnical engineering, aerospace, mining, blasting, transportation and medical and other applications. Article that the main factor limiting FBG sensors and large-scale industrial applications is the lack of a unified design theory and production methods, which makes the sensors from different manufacturers specifications differ. In addition, due to the complexity of the production technology and sophisticated production process so that the sensor higher production costs, but also the practical application of fiber grating sensor product is not much, and the price is very high. Based on the above analysis, the article on the future direction of the technology raised the prospect.)

说明：  这是一个混沌的Anrold变换 他是一次变换加密 是一个混沌加密入门程序(This is a chaotic Anrold transform He is a transformation encryption is a chaotic encryption entry procedures)

基于BP神经网络的图形图像压缩算法 可以运行(BP neural network can run a graphical image compression algorithm based on)

说明：  vmd的原始程序，亲测可以用，有什么问题的欢迎大家留言与探讨。(VMD original program, pro test can be used, what questions are welcome to leave a message and discuss.)

main executing reference usage: usage_overlayColoredBorders_Images.m The objective is to illustrate overlaying of 2 RGB images. Multiple images may be overlay 1 over the other as well.

说明：  高级数字信号处理AR模型信号处理 MATLAB 例程(the information process of model AR)

调频步进信号的产生matlab方式。希望有用！(generating step frequency signal use matlab!)

MATLAB7.1的潮流计算关于遗传算法的所有源程序详解【matlab】(MATLAB7.1 flow calculation for all the source code on the genetic algorithm matlab】 【Detailed )

光伏并网逆变器控制技术的研究,详细分析了并网的技术难点和技术攻关。(Research on photovoltaic grid connected inverter control technology, a detailed analysis of the technical difficulties and technical problems of grid. )