168020

OFDM系统中ldpc编码的解调matlab源程序！(LDPC coded OFDM system demodulation matlab source!)

本文分析了多级维纳滤波器的特性，在加性噪声和二维天线阵列如均匀圆阵、均匀面阵、十字阵等条件和背景下，对信源个数和信源参数估计问题进行了研究，提出了基于多级维纳滤波器前向分解特性的快速参数估计方法，同时提出了基于多级维纳滤波器的二维ESPRIT参数估计方法，该类方法无需协方差矩阵的估计运算及分解运算，计算复杂度较低。另外，还提出了对信源个数的估计算法。(This paper analyzes the characteristics of multistage Wiener filter, in the additive noise and the two-dimensional antenna array such as a uniform circular array, the uniform array, cross array conditions and background, the source number and source parameter estimation problem undertook study, put forward based on Multistage Wiener filter prior to the decomposition characteristics of fast parameter estimation method, at the same time based on Multistage Wiener filter 2D ESPRIT parameter estimation method, the method does not need to estimate of covariance matrix calculation and decomposition, relatively low computational complexity. In addition, also put forward for source number estimation algorithm.)

实现Polar码编码译码，SC译码，简单实用，运行速度快(Polar MATLAB include encode and decode useful and simple)

在matlab上实现用鼠标画线的功能，有利于初学matlab图像编程的人(To achieve the matlab draw lines with the mouse functions, help beginners who matlab Graphics Programming)

一种简易有效的CT图像三维重建方法。利用MATLAB软件编写，实现CT图像的面绘制。(A simple and effective method of three-dimensional reconstruction of the CT image. Using MATLAB software development, surface rendering of the CT image.)

可以在使用此代码实现测量距离，主要是ArcEngine C#实现(Measuring the distance, mainly ArcEngine C# implementations can use this code)

说明：  实现水下无线传感器网络的三维部署，使用Voronoi图(deployment of wireless sensor network)

说明：  基于MATLAB的OFDM信道估计算法，使用了PN序列作为导频，两种导频处信道估计处理方法，中间特别加入了相位估计处理(MATLAB-based channel estimation algorithm for OFDM using PN sequence as a pilot and two pilot channel estimation Department treatment methods, particularly the middle to join the treatment phase estimation)

生成常见的混沌映射，用于混沌扩频码的设计。应用三种量化方法，比特量化、门限量化以及模2量化。重点计算其相关性能，自相关以及互相关，得到相关图像。计算序列的游程、平衡度。(To generate common chaos maps and use them to design the chaotic spreading sequences. We applied three kinds of quantization methods with bit queantization, threshold quantization and mod 2 quantization. We emphasized on the calculating the correlation performance on auto-corrrelation and cross-correlation and plotted their images.)

实现matlab直线插补仿真，matlab数据采样法的直线插补(Realization of linear interpolation simulation.)