am_tes_dem

：探索一种能有效抑制和消除颅脑MRI运动伪影产生的方法，以提高图像质量和工作效率。方法：利用包装CT管球的海绵，设计并制作了2 cm x 7．5 cm x 22 cm，3 cm x 7．5 cm x 22 cm，4 cm×7．5 cm x 22 em等3种规格的海绵垫， 配合使用颅脑正交线圈进行颅脑MRI检查。结果：采用“加垫法”行颅脑MRI检查2 638例。其中，一次性扫描成功2 633 例(占99．81％)，失败5例(占0．19％)； 在扫描失败的5例患者中，第2次扫描时配合使用医用绷带成功4例。失败l例。结论：采用“加垫法”行常规颅脑MRI扫描，方法简单、可靠。可有效抑制和消除运动伪影的产生，提高图像质量和工作效率。(To explore a brain can effectively inhibit and eliminate motion artifacts of MRI approach to improve the image quality and efficiency. Methods: The CT tube packing sponge ball, designed and made 2 cm x 7.5 cm x 22 cm, 3 cm x 7.5 cm x 22 cm, 4 cm × 7.5 cm x 22 em 3 sizes, etc. sponge pad, with the quadrature head coil using brain MRI. Results: The " plus cushion Law" the Brain MRI examination 2 638 cases. Among them, the one-time scan is successful 2 633 cases (99.81 ), failed in 5 cases (0.19 ) Conclusion: " plus cushion Law" routine brain MRI scan, the method is simple and reliable. Can effectively suppress and eliminate motion artifacts, and to improve image quality and efficiency.)

认知无线电系统中，瑞利信道条件下的能量检测算法实现的频谱感知方法。(Cognitive radio systems, Rayleigh channel conditions energy detection method for spectrum sensing algorithm.)

HHT就是先将信号进行经验模态分解（EMD分解），然后将分解后的每个IMF分量进行Hilbert变换，得到信号的时频属性的一种时频分析方法。(HHT is the first signal empirical mode decomposition (EMD decomposition), and then each IMF component decomposed Hilbert transform, frequency analysis method of time-frequency properties obtained when a signal.)

小波包分析提取振动信号中的特征频率，快速扩展随机生成树算法，用蒙特卡洛模拟的方法计算美式期权的价格以及基本描述。( Wavelet packet analysis to extract vibration signal characteristic frequency, Rapid expansion of random spanning tree algorithm, Monte Carlo simulation method of calculating the American option price and basic description.)

Turbo码编码仿真程序，在Matlab环境下仿真，适用于初学者。(Turbo coding simulation program, in the Matlab simulation environment for beginners.)

points on elliptic curve, for ecc (elliptic curve cryptosystem)... point addition point multiplication

Algorith PCA in Matlab. The example is basic, with random data

DCT给灰度图像加二值的水印信息，运行显示四幅图，分别是原图像，水印图像，加水印的图像和提取的水印图像(DCT to gray image plus two watermark values, run the show four maps are the original image, watermark image, add watermark image and extracted watermark image)

图像的几何矫算法及其用MATLAB实现的代码，内容全面，包含图片(The geometry of the image by algorithm and MATLAB code, comprehensive, including pictures )

说明：  这是一个mantlab的程序，如果大家有需要的话 请下载！(it is matlab,please download it is free! and if you have any other problem!call me !)