erjidaolibai

backpropagation algortihm for fisher data

Matlab混沌理论工具箱2.0版本，功能很全很强大，推荐下载！(Matlab Chaos Theory Toolbox version 2.0, the function is all very powerful, it is recommended to download!)

针对提出的故障信号，利用awgn加噪，对其进行小波软硬阈值降噪，提出一种改进阈值，利用五种自适应阈值函数sqtwolog、rigrsure、heursure、minimaxi和ddencmp中阈值选取原则，对软阈值、硬阈值和改进阈值进行降噪效果对比。(In view of the proposed fault signal, the wavelet soft and hard threshold de-noising is carried out by AWGN adding noise, and an improved threshold is proposed. The threshold selection principle of five adaptive threshold functions, sqtwolog, rigrsure, heursure, minimaxi and ddencmp, is used to compare the soft threshold, hard threshold and threshold value.)

it deals wid clour segmentation of rgb image.....

滑模变结构控制在本质上就是一种特殊的非线性控制。它的非线性主要是因为控制的不连续性，也就是说滑模控制的“结构”有一种随时间变化的的开关特性。(Sliding Mode Control in essence, is a special kind of nonlinear control. Its nonlinear mainly because of the control of the discontinuity, which means that the sliding mode control " structure" of a change over time of the switching characteristics.)

Abstract—In this paper, a new lossy technique based on wavelet transform for compression of breast ultrasound images is presented. The experiments are performed on 16 different wavelet functions and the quality of reconstructed images is evaluated by using Compression Ratio (CR), Normalized Mean Square Error (NMSE), Normalized Absolute Error (NAE), and Peak Signal to Noise Ratio (PSNR) criterion. An ultrasonographer performed the subjective assessment. This study shows that among the utilized wavelets,

利用MATLAB对扩频信号进行检测和参数估计，结果表明本方法具有在低信躁比下检测的优势(The use of MATLAB for spread spectrum signal detection and parameter estimation results show that this method is in the low than under the letter impatient edge detection)

说明：  自定义的音频驱动程序支持,该AudioDevice块，船舶与信号处理模块库利用PortAudio沟通与音频硬件(Custom audio driver support, the AudioDevice block, ship and Signal Processing Blockset to communicate with audio hardware using PortAudio)

matlab based indexed image calculation

steganography using EMD (exploide modification directions)