Q_-matrix--LDPC-code

一系列展示图像压缩技术的源代码。包括有：使用块截断编码的图像压缩(Block Truncation)、基于高斯金字塔变换的图像压缩(Gaussian Pyramids)、基于离散余弦变换对图像压缩(Discrete Cosine Transform)、基于奇异值分解(SVD)的图像压缩(Singular Value Decomposition)。给出的代码还可以用于2D图像噪声消除。(Image Compression A collection of simple routines for image compression using different techniques. BTCODE: Image compression Using Block Truncation Coding. PYRAMID: Image compression based on Gaussian Pyramids. DCTCOMPR: Image compression based on Discrete Cosine Transform. IMCOMPR: Image compression based on Singular Value Decomposition. The given codes can be also used in 2D noise suppression. Notes: The function "conv2fft" performs a 2D FFT-based convolution. Type "help conv2fft" on Matlab command window for more informations.)

the same with the privious one.

此系统包含多种数字信号调制，使用方便，特别适用于初学者！(Welcome to domnloads my code !thank you !)

FDTD计算二维光子晶体结构的matlab源代码(FDTD calculation of two-dimensional photonic crystal structure of the source code matlab)

circulation array using the the matlab for radar sensor application

个人找的一个电子书，主要介绍matlab的入门知识，讲解很详细，有例证，个人觉得很好用！(Books about matlab！)

用matlab求图像阈值分析程序，一种是直方图阈值法一种是最大类间方差(Using matlab and image threshold analysis program, a variance between a Histogram method is the largest class)

对机械振动信号的预处理，以及滤波，频域变换等(The pretreatment of the mechanical vibration signal, and filtering, frequency domain transform, etc.)

matlab 基本的loop功能,只是最基本的先前条件所构成的loop代码(matlab basic loop function)

matlab编程完成一GPS网的平差计算。起算数据见文件“起算数据.TXT”；GPS网略图见“网图.jpg”；基线向量观测值和方差见“基线.bas”。根据已知起算数据和观测值建立数学模型并进行最小二乘平差计算和精度评定。代码和计算结果在实习报告中也已详细列出。(matlab program to complete a GPS network adjustment calculation. Initial data the document entitled " Initial Data. TXT" GPS network sketch map, see " Map. Jpg" baseline vector and the variance of observations, see the " baseline. Bas" . According to initial data and observations of known mathematical model and the least squares calculation and accuracy evaluation. Code and report the results in practice have also been detailed.)