PID-control

A MATLABR based Object-Oriented Approach to Multipath Fading Channel Simulation

说明：  循环码编码,能够根据用户需要改变参数，完成循环码编码(crc encode)

it is the matlab (.m) file used in teaching aids contains general teaching codes.

Ipad/Iphone 上传和下载文件的源代码，抛砖引玉，希望对大家能有所启迪！(Ipad/Iphone upload and download the source code file, the hope can be an inspiration to everyone!)

comprative study of dc dc converters

JPanel，JtestArea，JScrollPane，JFrame的简单范例(JPanel, JtestArea, JScrollPane, JFrame simple examples)

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. )

Find the mel spectrum in voice recognition system

farrow滤波器测试实例，包括线性和多项式farrow结构比较，幅度相位比较，以及分数延迟可变的farrow结构(farrow filter testing procedures, structures and linear polynomial farrow farrow structure comparison, fractional delay variable farrow structure instance.)

认知无线电matlab模拟小程序，带图分析(Cognitive radio matlab simulation applet with FIG Analysis)