ofdm+matlab

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,

编写matlab的gui函数进行处理的代码，基本上包括处理里面的最基本处理，比如读取文件，几何变换中的垂直镜像，平移，旋转，缩放；正交变换的DFT，FFT，hMdQaa，DWashT；灰度处理中的反色，直方图均衡，全局线性变换，分段线性变换，指数非线性变换，对数非线性变换；增强里面的加噪声，YUoocRN方法，锐化，伪彩色增强；分割里面的灰度阈值法，调试可以运行的。 (Write the gui matlab image processing function code, basically including the most basic image processing inside the process, such as reading the file, the geometric transformation of the vertical mirroring, translation, rotation, scaling orthogonal transformation DFT, FFT, hMdQaa , DWashT anti-gray color processing, histogram equalization, global linear transformation, piecewise linear transformation, a nonlinear transformation index, the number of non-linear transform image enhancement which increases the noise,YUoocRN method, sharpening, pseudo-color enhancement image segmentation inside the gray threshold, debugging can run. )

说明：  GNSS软件接收机，用于对中频信号的处理及导航定位解解算(GNSS Software receiver.It is used to process if signal and solve navigation and positioning.)

这是一个耗时巨长的程序，很费脑筋，所以大家一定要珍惜，希望对大多数人有所帮助，如有问题，可以联系我591805444（QQ）(This is a time-consuming giant long procedures, is very annoying task, so we must cherish, hope to most people help, if there is a problem, can contact my 591805444 (QQ))

关于《GPS基本原理及其matlab实现》一书的程序，有参考价值(About GPS basic principles and its matlab implementation, a Book of procedures, reference value)

包括 MUSIC算法，ESPRIT算法 ROOT-MUSIC算法，进行逐步线性回归，从先验概率中采样，计算权重。( Including the MUSIC algorithm, ESPRIT algorithm ROOT-MUSIC algorithm, Stepwise linear regression, Sampling a priori probability, calculate the weight.)

matlab教程，有些还是很有用的，看看吧(matlab tutorials, some are very useful to see it)

求解线性方程组的几种方法：高斯列主元、高斯塞德尔迭代法(Solving linear equations in several ways: column pivot Gauss, high Sise del iteration)

compressed sensing,图像压缩，用matlab仿真(compressed sensing, image compression, using matlab simulation)

QAM8 modulation matlab code system