jiediandianya

Construct the short length of QC LDPC codes without girth 4 and girth 6(The Program to construct the short length of QC LDPC codes without girth 4 and girth 6 Copyright (C) Yang XIAO, Jun FAN, BJTU, July 26, 2007, E-Mail: yxiao@bjtu.edu.cn. This program presents an approach [1] for constructing the short length of LDPC codes with girth 8. First, we design 3 submatrices with different shifting functions given by our schemes, then combine them into a matrix according to our approach, finally, expand the matrix into a desired parity-check matrix using identity matrices and cyclic shift matrices of the identity matrices. The simulation results in AWGN channels show that the codes which can be obtained by the generator matrix derived from this check matrix for encoding the random information bits are as good as random LDPC codes [1]. Ref: [1] J. Fan, Y. Xiao, “A design of LDPC codes with large girth based on the sub-matrix shifting”, IET International Conference on Wireless Mobile and Multimedia Networks Proceedings (ICWMMN 2006), (CP525), p. )

motor MADA command easier

这是一个关于线性调频信号的产生以及其频谱分析的代码(This is a chirp signal generation and its spectrum analysis code)

说明：  A Review paper on human detection for video survelliance

matlab 贮存轮 数模学习用。！！！！！(matlab the storage round of digital-to-analog learning. ! ! ! ! !)

说明：  matlab中应用BP神经网络对模式识别的源码(matlab application of BP neural network for pattern recognition of the source)

这事很不错的半定规划matlab软件,this is the important software of SDP.(this is the important software of SDP.)

说明：  matlab解微分方程的详细算法以及一些例子(matlab solutions of differential equations as well as some examples of the detailed algorithm)

this is implementation steganography using LSB, you must try code. i think

synchronous genertor with PV array