content_based_image_recongnition

说明：  MATLAB实现的无源RC、LC滤波器设计系统。可设计LP、HP、BP、BS四种滤波器，附带设计结果(MATLAB realization of passive RC, LC filter design system. Can be designed LP, HP, BP, BS in four filters, with the design results)

核查的关键在于对核材料属性准确、有效地识别[1][2]。利用252Cf作为随机脉冲中子源，对其入射核材料所产生的诱发裂变中子脉冲信号进行采集、处理和分析，得到自相关、互相关、自/互功率谱、功率谱密度比等一系列参数，从而反演核材料内部的反应性的情况，便可用于分析和识别核材料，其基本原理就是252Cf中子源驱动噪声分析测量法[(The result shows that the trained Elman neural network is able to identify the characteristics of correlation function, to distinguish different concentrations, and the average recognition rate reaches 90 , with high robustness.)

procesing data voice for corelation signal in matlab

本文建立了独立悬架汽车整车七自由度动力学模型，推导了振动微分方程，运用数值仿真的手段研究了汽车悬架阻尼系数、刚度等设计参数对汽车振动特性的影响规律。结果表明，在共振区域附近，相对较大的刚度，会导致汽车的舒适性下降，但在共振区以外的高频区，刚度对汽车振动幅值的影响并不大；后桥悬挂阻尼对汽车振动幅值的影响较前桥强烈，适当增大后桥悬挂的阻尼有利于振动幅值的降低(This paper established an independent suspension vehicle dynamic model of seven degree of freedom, the vibration differential equation is derived, using the numerical simulation method of vehicle suspension damping coefficient, influence of design parameters on vehicle vibration characteristics of stiffness. The results show that in the resonance region, a relatively large stiffness, will lead to the comfort of the car down, but in the resonance region outside the high frequency region, the effect of stiffness of the vehicle vibration amplitude is small; the effect of damping on automobile suspension vibration amplitude is strongly increasing the rear axle axle, suspension damping to reduce the vibration amplitude)

这是介绍数字滤波器的设计和运用matlab的文件,pdf格式的(This is the introduction of digital filter design and the use of matlab document, pdf format)

pwm控制模块，可以仿真太阳能电池的采样点输入(PWM control module, can simulate the solar cell sampling input)

matlab数字水印 通过这个程序可以给原图象加上水印 但不可以提取！(Matlab digital watermarking through this procedure can be added to the original image watermark but not extract!)

一个MATLAB程序，用以产生多变量高斯随机过程的样本(A MATLAB program used to generate the samples for multivariate Gaussian random process)

本文件详细描述了如何利用matlab代码去实现边缘的检测，hough变换检测图像几何形状时的边缘问题(This document describes in detail how to use matlab code to achieve edge detection, hough transform to detect the edge of the image geometry problem)

本代码为配电网经常使用的前推回代计算潮流的matlab程序(The code for the distribution network is often used to calculate the trend of forward and backward substitution matlab program)